OHSAKA Lab.
Department of Electronic Chemistry
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Recent Representative Papers (1995-2006)


Electrode Kinetics of the O2/ O2- Redox Couple at Hg Electrode in the Presence of PVC in Aprotic Media
M. S. Saha and T. Ohsaka
Electrochim. Acta., in press.

Gold Nanoparticle-Assisted Electroreduction of Oxigen
C. R. Raj and T. Ohsaka
Electrochem. Commun., submitted.

Electrochemical Biosensors for Superoxide Anion
Y. Tian, L. Mao and T. Ohsaka
Current Analytical Chemistry, submitted.

Electrodoposition of Gold Nanorods with a Uni-directional Crystal Growth and Lower Au(111) Facet Area
F. Gao, M. S. El-deab and T. Ohsaka
Indian J. Chem., in press.

Oxygen Reduction at Electrochemically Deposited Au(100)-like Gold Nanoparticles
M. S. El-Deab, T. Sotomura and T. Ohsaka
Electrochem. Commun., 7, 29-35 (2005)

Current Oscillatory Phenomena Based on Electrogenerated Superoxide Ion at HMDE in Dimethylsulfoxide
Md. M. Islam, M.S. Sada, T. Okajima and T. Ohsaka
J. Electroanal. Chem., in press.

Current Oscillatory Phenomena Based on the Redox Reactions at HMDE in Dimethylsulfoxide
Md. M. Islam, T. Okajima and T. Ohsaka
J. Phys. Chem. B, 108, 19425-19431 (2004).

Carbon Fiber Microelectrode-Based Third-Generation Biosensors for Superoxide Anion
Y. Tian, L. Mao, T. Okajima and T. Ohsaka
Biosensors and Bioelectronics, in press.

Electrochemical Preparation of an Au Crystal with Peculiar Morphology and Unique Growth Orientation and its Catalysis for Oxygen Reduction
F. Gao, M. S. El-Deab, T. Okajima and T. Ohsaka
J. Electrochem. Soc., in press.


Electroanalysis of Peroxone
M. I. Awad and T. Ohsaka
Electrochem. Commun., 6, 1135-1140 (2004).


Simultaneous electroanalysis of Hypochlarite and H2O2: Use of I-/ I2 as a Probing Potential Buffer
M. I. Awad, S. Sata and T. Ohsaka
Electroanalysis, in press.


Self - Assembled Monolayers Suitable for Electron - Transfer Promotion of Copper, Zinc - Superoxide Dismutase
Y. Tian, T. Ariga, N. Takashima, T. Okajima, L. Mao and T. Ohsaka
Electrochem. Commun., 6, 609 - 614 (2004).


In Situ Color Video observation of Polarographic Streaming Phenomenon of an HMDE Using Electrochromic Reaction
Md. M. Islam, T. Okajima and T. Ohsaka
Electrochem. Commun., 6, 556 - 561 (2004).


Effect of Electrode Materials on the Kinetics of the Electro - Reduction of Peroxyacetic Acid
A. Denggerile, M. I. Awad, T. Okajima, C. Harnoode and T. Ohsaka
Electrochim. Acta., 49, 4135-4141 (2004)


Determination of Saturated Concentration and Diffusion Coefficient of Nitric Oxide in Physiological pH Solution Using Hydrodynamic Chronocoulometry
T. Oritani, T. Okajima and T. Ohsaka
Electrochemistry, 72, No.5, 298 - 301 (2004).


Electrochemical studies of Acid - Promoted Disproportionation of Nitroxyl Radical
S. Kishioka, T. Ohsaka and K. Tokuda
Electrochim. Acta., 48, 1589 - 1594 (2003).


Electrochemistry and Electro - catalytic Activities of Superoxide Dismutases at Gold Electrodes Modified with Self - Assembled Monolayer
Y. Tian, L.Mao, T. Okajima and T. Ohsaka
Anal. Chem., 76, 4162-4168 (2004).


Electroreduction of Peroxyacetic Acid at Gold Electrode in Aqueous Media
M. I. Awad, A. Denggerile and T. Ohsaka
J. Electrochem. Soc., 151, No.12, E358-E368 (2004).


Electrocatalytic Reduction of Oxygen in a Novel Catalytic System with Cobalt Phthalocyanines and Manganese Oxide
K. Arihara, L. Mao, P. A. Liddell, E. Marino - Ochoa, A. L. Moore, T. Imase, D. Zhang, T. Sotomura and T. Ohsaka
J. Electrochem. Soc., 151, No.12, A2047-A2052 (2004).


Size - and Crystallograhic Orientation - Controls of Gold Nanoparticles Electrodeposited on Glassy Carbon Electrodes in the precense of Cysteine or Iodide Ions
M. S. El - Deab, T. Sotomura and T. Ohsaka
J. Electrochem. Soc., 151, E213 - E218 (2004).


Electrochemical Behavior of Conjugated Quinoxaline Derivatives
R. Wang, R. Ramaraj, T. Okajima, F. Kitamura, N. Matsumoto, T. Thiemann, S. Mataka and T. Ohsaka
J. Electroanal. Chem., 567, No1, 85-94, (2004).


Catalytic Reduction of O2 by Pyrazine Derivatives
R. Wang, T. Okajima, F. Kitamura, S. Kawauchi, N. Matsumoto, T. Thiemann, S. Mataka and T. Ohsaka
J. Phys. Chem. A., 108, No.11, 1891-1899, (2004).


Molecular-Level Design of Binary Self-Assembled Monolayers on Polycrystalline Gold Electrodes
M. S. El-Deab and T. Ohsaka
Electrochim. Acta, 49, No.13, 2189-2194, (2004).


Bifunctional Catalytic Activity of Manganese Oxide toward O2 Reduction-
Novel Insight into the Mechanism of Alkaline Air Electrode
T. Ohsaka, L. Mao, K. Arihara and T. Sotomura
Electrochem. Commun., 6, No.3, 273-277, (2004).


Selective Detection of Dopamine and Its Metabolite, DOPAC, in the Presence of Ascorbic
Acid Using Diamond Electrode Modified by the Polymer Film
P.R. Roy, M. S. Saha, T. Okajima, S-G. Park, A. Fujishima and T. Ohsaka
Electroanalysis, 16, 1777-1784 (2004)
.


Electrolytic Synthesis of Peroxyacetic Acid Using in situ Generated Hydrogen Peroxide on Gas Diffusion Electrodes
M. S. Saha, Y. Nishiki, T. Furuta and T. Ohsaka
J. Electrochem. Soc., 151, No.9, D93-D97 (2004)
.


A Novel Alkaline Air Electrode Based on A Combined Use of Cobalt Hexadecafluoro-phthalocyanine
and Manganese Oxide
L. Mao, K. Arihara, T. Sotomura and T. Ohsaka
Electrochim Acta, 49, 2515-2521 (2004)
.


Multiple Voltammetric Waves for Reductive Desorption of Cysteine and 4-Mercaptobenzoic Acid
Monolayers Self - Assembled on Gold Substrates ;
K. Arihara, T. Ariga, N.Takashima, K. Arihara, T.Okajima, F. Kitamura, K. Tokuda and T. Ohsaka,
Phys. Chem. Chem. Phys., 5, 3758-3761 (2003).


Enhancement of Electrochemical Reduction of Hydrogen Peroxide and Observation of Current Oscillatory
phenomena during its Reduction on a Mercury Adatom-modified Au electrode;
Futoshi Matsumoto, Shinji Uesugi, Nobuyuki Koura and Takeo Ohsaka,
J Electroanal. Chem
., 549, 71-80 (2003).


A Novel Amperometric O2 Gas Sensor Based on Supported Room-Temperature Ionic Liquid Porous
Polyethylene Membrane-coated Electrodes;
Rong Wang, Takeyoshi Okajima, Fusao Kitamura and Takeo Ohsaka,
Electroanalysis, 16, 66-72 (2004).


Electro-reduction of Dioxygen in 1-n- Alkyl -3- methylimidazolium Tetrafluoroborate Room-temperature
Ionic Liquids;
Dun Zhang, Takeyoshi Okajima, Futoshi Matsumoto and Takeo Ohsaka,
J. Electrochem. Soc.,151, D31-D37 (2004).


A Novel Electrochemical Strategy for Developing Alkaline Air Electrodes by a Combined Use of Dual
Functional Catalysts;
Lanqun Mao, Kazuki Arihara, Tadashi Sotomura and Takeo Ohsaka,
Chem. Commun
. 2818-2819 (2003).


O2 Gas Sensor Using Supported Hydrophobic Room- Temperature Ionic Liquid Membrane- coated
Electrode;
R. Wang, S. Hoyano and T. Ohsaka,
Chem. Lett.
, 33, 6-7 (2004).


Electrochemical Reduction of Molecular Oxygen on Hg Adatom- Modified Au Electrode in Organic Media
Containing a Small Amount of Water;
F. Matsumoto, S. Uesugi, M.Harada, N. Koura and T. Ohsaka,
Electrochemistry, 71, 927-932 (2003).


A Fabrication of Au (111) -like Polycrystalline Gold Electrodes and Their Applications to the Oxygen
Reduction ;
Mohamed S. El-Deab, K. Arihara and T. Ohsaka,
J. Electrochem. Soc.
, 151, E213-E218 (2004).


Electrochemical and Spectroscopic Studies on Electron-Transfer Reaction between Nobel Water-Soluble
Tetrazolimu Salts and a Superoxide Ion;
T. Oritani, N. Fukuhara, T. Okajima, F. Kitamura and T. Ohsaka,
Inorg. Chim. Acta, 357, 436-442 (2004).


Simultaneous Electrochemical Detection of Uric Acid and Ascorbic Acid at Poly (N,N-Dimethylaniline)
Film-Coated GC Electrode;
P. R. Roy, T. Okajima and T. Ohsaka,
J. Electroanal. Chem
., 561, 75-82 (2004).


Cyclic and Normal Pulse Voltammetric Studies of 2,3,6,7,10,11-Hexaphenyl-hexazatriphenylene Using
a Benzonitrile Thin Layer-Coated Glassy Carbon Electrode;
R. Wang, T. Okajima, F. Kitamura, N. Matsumoto, T. Thiemann, S. Mataka and T. Ohsaka,
J Phys.Chem. B
., 107, No.35, 9452-9458 (2003).


A New Method for the Preparation of Peroxyacetic Acid Using Solid Superacid Catalysts;
M. S. Saha,Y. Nishiki, T. Furuta, A. Denggerile and T. Ohsaka,
Tetrahedron Lett., 44, 5535-5537 (2003).


Electrocatalysis by Nanoparticles: Oxygen Reduction on Gold Nanoparticles-Electrodeposited Platinum
Electrodes;
M. S. El-Deab and T. Ohsaka,
J. Electroanal. Chem., 553, 107-115 (2003).


Electrooxidation and Amperometric Detection of Ascorbic Acid at GC Electrode Modified by
Electropolymerization of N,N-Dimethylaniline;
P. R. Roy, T. Okajima and T. Ohsaka,
Electroanalysis, 16, No.4, 289-297 (2004).


Synthesis of Peroxyacetic Acid Using in situ Electrogenerated Hydrogen Peroxide on Gas Diffusion
Electrode;
M. S. Saha, A. Denggerile, Y. Nishiki, T. Furuta and T. Ohsaka,
Electrochem. Commun.
, 5, 445-448 (2003).


Simultaneous Potentiometric Determination of Peroxyacetic Acid and Hydrogen Peroxyde;
M. I. Awad, T. Oritani and T. Ohsaka,
Anal. Chem
., 75, 2688-2693 (2003).


Potentiometric Analysis of Peroxyacetic Acid in the Presence of a Large Excess of Hydrogen Peroxide;
M. I. Awad and T. Ohsaka,
J. Electroanal. Chem.
, 544, 35-40 (2003).


Kinetic Studies of the Oxidation of Iodide by Peroxyacetic Acid;
M. I. Awad, T. Oritani and T. Ohsaka,
Inorg. Chim. Acta
, 344, 253-256 (2003).


Electrogeneration of Superoxide Ion and Its Mechanism at Thiol-Modified Au Electrodes in Alkaline
Aqueous Solution;
F. Matsumoto, T. Okajima, S. Uesugi, N. Koura and T. Ohsaka,
Electrochemistry, 71 (4), 266-273 (2003).


Hydrodynamic Chronocoulometric Estimation of Diffusion Coefficients and Saturated Concentrations of
Dioxygen in KOH Solutions;
D. Zhang, J. F. Wu, L. Mao, T. Okajima, F. Kitamura, T. Sotomura and T. Ohsaka,
Indian J. Chem.
(A) 42, 801-806 (2003).


Quasi-Reversible Two-Electron Reduction of Oxygen at Gold Electrodes Modifide with a
Self-Assembled Submonolayer of Cysteine;
M. S. El-Deab and T. Ohsaka,
Electrochem. Commun.
5, 214-219 (2003).


Electrochemcal Reduction of Oxygen on Gold Nanoparticles-Electrodeposited Glassy Carbon Electrodes;
M. S. El-Deab, T. Okajima and T. Ohsaka,
J. Electrochem. Soc
., 150 (7), A 851-A 857 (2003).


Gold Nano Particle Arrays for the voltammetric Sensing of Dopamine;
C.R.Raj, T. Okajima and T. Ohsaka,
J. Electroanal. Chem.
, 543 (2), 127-133 (2003).


Mechanistic Study of the Reduction of Oxygen in Air Electrode with Manganese Oxides as
Electrocatalysts;
L. Mao, D. Zhang, T. Sotomura, K. Nakatsu, N. Koshiba and T. Ohsaka,
Electrochim.Acta, 48(8), 1015-1021 (2003).


Voltammetric Detection of Uric Acid in the Presence of Ascorbic Acid at a Gold Electrode Modified with
Self-Assembled Monolayer of Heteroaromatic Thiol;
C. R. Raj and T. Ohsaka,
J. Electroanal. Chem., 540, 69-77 (2003).


Chemiluminescence of Lucigenin by Electrogenerated Superoxide Ions in Aqueous Solutions;

T. Okajima and T. Ohsaka,
Luminescence, 18, 49-57 (2003)
.


Simultaneous Electroanalysis of Dopamine and Ascorbic Acid Using Poly (N,N-dimethylaniline)-Modified
Electrodes;
P. R. Roy, T. Okajima and T. Ohsaka,
Bioelectrochemistry, 59 , 11-19 (2003)
.


Simultaneous Electroanalysis of Nitric Oxide and Nitrite;
T. Oritani, T. Okajima, F. Kitamura and T. Ohsaka,
J. Korean Electrochem. Soc.
, 5 (4), 209-211 (2002)
.


A SOD-based Amperometric Biosensor for Superoxide Ion;
Y. Tian, T. Okajima, F. Kitamura and T. Ohsaka,
J. Korean Electrochem. Soc.
, 5 (4), 212-215 (2002)
.


Superoxide Dismutase-Based Third-Generation Biosensors for Superoxide Anion;
Y. Tian, L. Mao, T. Okajima and T. Ohsaka,
Anal. Chem., 74 (10), 2428-2434 (2002)
.


A Superoxide Dismutase-Modified Electrode That Detects Superoxide Ion;
T. Ohsaka, Y. Tian, M. Shioda, S. Kasahara and T. Okajima,
Chem. Commun.
, 990-991 (2002)
.


Square Wave Voltammetric Sensing of Uric Acid Using the Self-Assembly of Mercapto-benzimidazole;
C. R. Raj, F. Kitamura and T. Ohsaka,
Analyst
, 127, 1155-1158 (2002).


Hydrodynamic Voltammetric Studies of the Oxygen Reduction at Gold Nanoparticles-Electrodeposited
Gold Electrodes;
M. S. El-Deab and T. Ohsaka,
Electrochim. Acta
, 47, 4255-4261 (2002).


Electrogenerated Chemiluminescence of Lucigenin Enhanced by the Modification of Electrodes with
Self-Assembled Monlayers and of Solutions with Surfactants;
T. Okajima and T. Ohsaka,
J. Electroanal. Chem., 524, 181-187 (2002).


Voltammetric Measurements of pH Using a Mixed Self-assembly of Macrocyclic Nickel (II) Complex
and Diimine on Gold Electrode;
C. R. Raj, T. Okajima and T. Ohsaka,
Electrochem. Commun.,
4, 330-335 (2002).


Characteristic Cyclic Voltammograms of Alkyl Viologens at Single Crystal Gold Electrodes;
K. Arihara, T. Ohsaka and F. Kitamura,
Phys. Chem. Chem. Phys.
, 4, 1002-1005 (2002).


Chemiluminescence of Indole and its Derivatives Induce by ElectrogeneratedSuperoxide Ion in
Acetonitrile Solutions;
T. Okajima and T. Ohsaka,
Electrochim. Acta.
, 47, 1561-1565 (2002).


An Extraordinary Electrocatalytic Reduction of Oxygen on Gold Nanoparticles-electrodeposited Gold
Electrodes;
M. S. El-Deab and T. Ohsaka,
Electrochem. Commun.
, 4, 288-292 (2002).


Electrochemical Redcution of Dioxygen Mercury Electrode in Alkaline Aqueous Media;
D. Zhang, L. Mao, J. Wu, T. Okajima, F. Kitamura and T. Ohsaka,
Jpn. J. Deuterium. Sci.
, 11 (1), 1-8 (2002).


Chemiluminescence of 3-Methylindole Based on Electrogeneration of Superoxide Ion in Acetonitrile
Solutions;
T. Okajima and T. Ohsaka,
J. Electroanal. Chem.
, 523, 34-39 (2002).


In situ Monitoring of the Mercury Electrode Surface in HClO4 Solutions by Means of Infrared Reflection
Absorption Spectroscopy;
K. Arihara, F. Kitamura, T. Ohsaka and K. Tokuda,
J. Electroanal. Chem.
, 518, 139-143 (2002).


アルカリ性水溶液中におけるポリアニリンスルホン酸修飾電極を用いたスーパーオキシドイオンの
電解生成 ;
大木 成政, 村山 耕亮, 松本 , 小浦 延幸, 岡島 武義, 大坂 武男,
Electrochemistry
, 70 (1), 23-29 (2002).


A Facilitated Electron Transfer of Copper-Zinc SuperoxideDismutase (SOD) Based on a Cysteine
-Bridged SOD Electrode ;
Y. Tian, M. Shioda, S. Kasahara, T. Okajima, L. Mao, T. Hisabori and T. Ohsaka,
Biochem. Biophys. Acta
, 1569, 151-158 (2002).


Interferometric Measurement of the Current Oscillation in the Redox reaction of the O2/O2- couple at a
HMDE ;
M. S. Saha , T. Okajima and T. Ohsaka,
J. Phys. Chem.B, 106 (17), 4457-4461 (2002).


Electrochemical Characterization of Catalytic Activities of Manganese Oxides to Oxygen Reduction in
Alkaline Aqueous Solution ;
L. Mao , T. Sotomura, K. Nakatsu, N. Koshiba, D. Zhang and T. Ohsaka,
J. Electrochem. Soc., 149 (4), A504-A507 (2002).


Analytical Applications of Functionalized Self-assembled Monolayers on Gold Electrodes: Voltammetric
Sensing of DOPAC at the Physiological Level;
C. R. Raj and T. Ohsaka,
Electroanalysis
, 14 (10), 679-683 (2002).


Electrogeneration of Superoxide Ion at Polyaniline-modified Electrodes in Aqueous Media ;
H. Ono, T. Okajima, F. Matsumoto, T. Oritani, T. Shimizu, M. Takahashi and T. Ohsaka,
Electrochemistry, 69 (12), 953-955 (2002).


Characterization of the Adsorption State of Carbonate Ions at the Au(111) Electrode Surface Using in situ
IRAS ;
K. Arihara, F. Kitamura, T. Ohsaka and K. Tokuda,
J. Electroanal. Chem., 510, 128-135 (2001).


Superoxide Ion Sensor ;
T. Ohsaka, Y. Tian, L. Mao and T. Okajima ,
Anal. Sci., 17, 1379-1381 (2001).


Electrochemical and in situ FTIR Spectroscopic Investigation on the Electrochemical Transformation of
4-Aminothiophenol on Gold Electrode in Neutral Solution;
C. R. Raj, F. Kitamura and T. Ohsaka,
Langmuir
, 17, 7378-7386 (2001).


Electrocatalytic Sensing of NADH at an in situ Functionalized Self-assembled Monolayer on Gold
Electrode;
C. R. Raj and T. Ohsaka,
Electrochem. Commun.
, 3, 633-638 (2001).


Electroanalysis of Peracetic Acid in the Presence of a Large Excess of Hydrogen Peroxide ;
M. IsmailAwad , C. Harnode, K. Tokuda, and T. Ohsaka,
Anal. Lett.
, 34(7), 1215-1221 (2001).


Simultaneous Electroanalysis of Ascorbic Acid, Dihydroxyphenylacetic Acid, Homovanilic Acid and Uric
Acid Using Gold Electrode Modified with Cationic Self-Assembled Monolayers;
C. R. Raj and T. Ohsaka,
Chem. Lett.
, 670-671 (2001).


水銀アドアトム修飾電極上での過酸化水素の還元反応における電気化学振動現象 ;
上杉 慎治, 勝間田 哲朗, 松本 太, 小浦 延幸, 大坂武男,
Electrochemistry
, 69 (9), 681-685 (2001).


Electroanalytical Applications of Cationic Self-assembled Monolayers: Square-wave Voltammetric
Determination of Dopamine and Ascorbate ;
C. R. Raj, K. Tokuda, and T. Ohsaka,
Bioelectrochemistry
, 53, 183-191 (2001).


Facilitated Electrochemical Oxidation of NADH and its Model Compound at Gold Electrode Modified with
Terminally Substituted Electroinactive Self-Assembled Monolayers;
C. R. Raj and T. Ohsaka,
Bioelectrochemistry
, 53, 251-256 (2001).


Simultaneous Electroanalysis of Peroxyacetic Acid and Hydrogen Peroxide ;
M. I. Awad , C. Harnode, K. Tokuda, and T. Ohsaka,
Anal. Chem.
, 73(8), 1839-1843 (2001).


Electrochemical Reduction of Molecular Oxygen at Hg Adatom-Modified Au Electrode ;
F. Matsumoto, S. Uesugi, N. Koura, T. Okajima and T. Ohsaka,
J. Electroanal. Chem., B>505, 150-158 (2001).


Effect of Adsorbed Anions on the Outer-Sphere Electron- Transfer Reactions of Cobalt Complexs at
Platinum Single Crystal Electrodes;
N. Wakabayashi, F. Kitamura, T. Ohsaka and K. Tokuda
J. Electroanal. Chem.
, 499, 161-168 (2001).


Electroanalysis of Ascorbate and Dopamine at Gold Electrode Modified with Positively Charged
Self-assembled Monolayer;
C. R. Raj and T. Ohsaka,
J. Electroanal. Chem.
, 496(1-2), 44-49 (2001).


Current Oscillation Behavior of O2/O2- Redox Couple at HMDE in Non-aqueous Aprotic Media;
M. S. Saha, Y. Che, T. Okajima, T. Kiguchi, Y. Nakamura, K. Tokuda, and T. Ohsaka,
J. Electroanal. Chem.
, 496(1-2), 61-68 (2001).


Studies on Active Oxygen Generation by Addition of Reduced Polyaniline;
M. Takahashi, A. Shimizu, T. Karakasa, T. Okajima and N. Kawashima,
Material Technology, 18(8), 317-321 (2001).


Electrocatalytic Oxidation of NADH at the Self-Assembled Monolayer of Nickel (II) Macrocycle on Gold
Electrode;
C. R. Raj, K. V. Gobi and T. Ohsaka,
Bioelectrochemistry, 51, 181-186 (2000).


Electrochemical Oscillatory Phenomena in the  O2/O2- Redox Reaction on Hg-Coated Gold Electrodes
in Quinoline Media;
J. F. Wu, T. Okajima, K. Tokuda, and T. Ohsaka,
Electrochemistry, 68, 277-279 (2000).


Alkanethiol Structure and Supporting Electrolyte Effects on the Electrochemical and in situ Fourier
Tansform IR Spectral Properties of Asymmetric Alkyl Viologen on the Electrode Surface;
S. A. John, F. Kitamura. K. Tokuda and T. Ohsaka,
Langmuir
, 16, 876-880 (2000).


Anion recognition and electrochemical characteristics of the self-assembled monolayer of nickel(II)
azamacrocyclic complex;
K. V. Gobi and T. Ohsaka,
J. Electroanal. Chem.
, 485, 61-70 (2000).


Can N-Ethyl-N'- OctadecylViolgenDimerize on Octadecanethiol - Coated Gold Electrode ? ;
S. A. John, F. Kitamura, K. Tokuda and T. Ohsaka,
Electrrochim. Acta., 45, 4041-4048 (2000).


Structural Effects on the Electrochemical and Spectroelectrochemical Properties of Asymmetric
Viologens on Au Electrode Surface;
S. A. John, F. Kitamura, K. Tokuda and T. Ohsaka,
J. Electroanal. Chem., 492, 137-144 (2000).


Simultaneous Electroanalysis of Peracetica Acid and Hydrogen Peroxide Using Square-Wave
Voltammetry;
M. I. Awad, C. Harnoode, K. Tokuda, and T. Ohsaka,
Electrochemistry, 68(11), 895-897 (2000).


Adsorption structure of the HeptylViologenCation Radical on a mercury electrode surface: Voltammetric and in situ Infrared reflection absorption spectroscopic studies;
KazukiArihara, Fusao Kitamura, TakeoOhsaka and Koichi Tokuda
J. Electroanal. Chem.
, 488, 117-124 (2000).


Electrochemical Oscillatory Phenomena Based on the ElectrogeneratedSuperoxide Ion;
M. S. Saha and T. Ohsaka,
Jpn. J. Deuterium. Sci.
, 9, 35-40 (2000).


Adsorption of atomic hydrogen on a polycrystalline Pt electrode surface studied by FT-IRAS: the influence
of adsorbed carbon monoxide on the spectral feature;
N. Nanbu, F. Kitamura, T. Ohsaka and K. Tokuda,
J. Electroanal. Chem.
, 485,128-134 (2000).


Electrochemical and EQCM Studies on the Assembly of Asymmetric Viologen on Bare and Alkanethiol
Coated Au Electrodes;
S. A. John and T.Ohsaka,
J. Electroanal. Chem.
, 477, 52- 61 (1999).


Voltammetric and Spectroscopic Study of the Adsorption of Alkyl Viologens on a HOPG Electrode;
K. Arihara, F. Kitamura, K. Nukanobu, T. Ohsaka, K. Tokuda,
J. Electroanal. Chem
., 473, 138-144 (1999).


Electrochemical Behavior of a CypridinaLuciferin Analogue in Acetonitrile Solutions in the Presence of
Proton Acceptors;
T. Okajima, K. Tokuda, T. Ohsaka,
J. Electroanal. Chem.
, 476, 46-53 (1999).


Hydrodynamic Chronocoulometric Determination of Diffusion Coefficients and Concentrations of
Dioxygen in Media Containing Quinoline, Isoquinoline, and Methyl-quinolines;
J. F. Wu, Y. Che, T. Okajima, F. Matsumoto, K. Tokuda and T. Ohsaka,
Anal. Chem.
, 71, 4056-4060 (1999).


Electroreduction of Oxygen in Quinoline and Isoquinoline;
J. F. Wu, Y. Che, T. Okajima, F. Matsumoto, K. Tokuda and T. Ohsaka,
Electrochim. Acta
, 45, 987-991 (1999).


Enhanced Electrostatic Interactions for Selective and Controllable Permeation of Ionic Species at a
Monolayer of Self-Assembled Dicationic Nickel Complex;
K. V. Gobi and T. Ohsaka,
J. Electroanal. Chem.
, 465, 177-186 (1999).


Interfacial Infrared Reflection Spectroscopic Evidence for Potential-Dependent Electrocatalytic Activity
of Self-Assembled Monolayers of Nickel(II) Azamacrocyclic Complex toward Hydrogen Peroxide Oxidation;
K.V.Gobi, F.Kitamura, K.Tokuda and T.Ohsaka,
J. Phys. Chem. B, 103, 83- 88(1999).


Use of Alkanethiol-Coated Electrodes to Study the Importance of Water Content on the Electrochemical
Behavior of N-Ethyl-N'- OctadecylViologen on a Gold Electrode Surface;
S.A.John, F.Kitamura, N.Nanbu, K.Tokuda and T.Ohsaka,
Langmuir
, 15, 3816- 3822 (1999).


A Monomer-Dimer Equilibrium in Self-assembled Monolayers of N-Ethyl-N'- OctadecylViologen on the
Electrode Surface.The Influence of Water Content and Hexafluorophosphate Ion;
S.A.John, T.Okajima and T.Ohsaka,
J. Electroanal. Chem.
, 466, 67- 74 (1999).


Electrochemical and Spectroelectrochemical Studies on Sandwich-type Bis(phthalocyaninato)Lanthanide
Complexes ;
C. Harnoode, K. Takamura, H. Kubota, K. Sho, K. Fujisawa, F. Kitamura, T. Ohasaka,and K. Tokuda ,
Electrochemistry, 67,832-838,(1999).


Electrocatalytic Reduction of Dioxygen by the Assembly of Asymmetric Viologen on Gold Electrodes ;
S. A. John and T. Ohsaka ,
Jpn. J. Deuterium Sci
, 8,17-23,(1999).


Adsorption of Pyridine on a Polycrystalline Gold Electrode Surface Studied by Infrared Reflection
Absorption Spectroscopy ;
NoritoshiNanbu, Fusao Kitamura, TakeoOhsaka, Koichi Tokuda,
J. Electroanal. Chem.
, 470,136-143(1999).


Simultaneous Detection of Ascorbic Acid and Dopamine at Gold Electrode Modified with a
self-Assembled Monolayer of Cystamine;
C. R. Raj and T. Ohsaka,
Electrochemistry, 67, 1175-1177 (1999).


Effect of Anions on the Kinetics of Tris(1,10-phenanthroline)cobalt(II)/(III) Redox-Electrode Reaction on
a Platinum (111) Single Crystal Electrode;
N. Wakabayashi, F. Kitamura, T. Ohsaka, and K. Tokuda,
Electrochemistry
, 67, 1181-1183 (1999).


Adsorption Behavior of Pyridinecarboxylic Acids in Acidic Solution on a Polycrystalline Gold Electrode
Surface Studied by Infrared Reflection Absorption Spectroscopy;
N. Nanbu, F. Kitamura, T. Ohsaka, and K. Tokuda,
Electrochemistry
, 67, 1165-1167 (1999).


Stabilization of the Assemblies of Short Alkyl Chain Asymmetric Viologens on Alkanethiol-Coated
Electrodes;
S. A. John, T. Ohsaka,
Electrochim. Acta.
, 45, 1127-1133 (1999).


In situ IR Spectroscopic Study of Water at a Polycrystalline Gold Electrode Surface;
F. Kitamura, N. Nanbu, T. Ohsaka and K. Tokuda,
J. Electroanal. Chem.
, 452, 241-249 (1998).


Electrochemical Characteristics of Self- Assembled Monolayers of a Novel Nickel(II)
Pentaazamacrocyclic Complex on a Gold Electrode;
K.V.Gobi, T.Okajima, K.Tokuda and T.Ohsaka,
Langmuir
, 14(5), 1108- 1115 (1998).


Monomolecular Films of a Nickel(II) Pentaazamacrocyclic Complex for the Electrocatalytic Oxidation of
Hydrogen Peroxide at Gold Electrodes;
K.V.Gobi, K.Tokuda and T.Ohsaka,
J. Electroanal. Chem.
, 444, 145- 150 (1998).


Solvatochromic Linear Solvation Energy Relationships for Solubility of O2 in Various Solvents;
Y.Che, K.Tokuda and T.Ohsaka,
Bull. Chem. Soc. Jpn.
, 71, 651- 656 (1998).


Electrochemical and Spectral Properties of Novel Dinickel(II) and Dicopper(II) Complexes with N,N-
linked Bis(pentaazacyclotetradecane);
K.V.Gobi and T.Ohsaka,
Electrochim. Acta
, 44, 269- 278 (1998).


New Oscillatory Phenomena in the Redox Reaction of O2/O2- Couple on a Hanging Mercury Drop
Electrode in Acetone Media;
Y.Che, T.Okajima, Y.Nakamura, K.Tokuda and T.Ohsaka,
Chem. Lett.
, 97- 98 (1998).


Electrochemical and Spectroscopic Studies on Nickel(II/III) Complexes with Novel 14- Membered
HexaazaMacrocycle Functionalized with Propenyl Groups;
K.V.Gobi, K.Tokuda and T.Ohsaka,
Electrochim. Acta
, 43(9), 1013- 1021 (1998).


Reaction Mechanism and Kinetics of Alcohol Oxidation at Nitroxyl Radical Modified Electrodes;
S.Kishioka, S.Ohki, T.Ohsaka and K.Tokuda,
J. Electroanal. Chem.
, 452, 179- 186 (1998).


Normal Pulse Voltammetry for Facilitated Ion Transfer Processes across Two Immiscible Liquid- Liquid
Interfaces;
Y. B.Liao, M.Okuwaki, F.Kitamura, T.Ohsaka and K.Tokuda,
Electrochim. Acta
, 44, 117- 124 (1998).


Microelectrodes with Leak of Solution;
K. Yamada, F. Kitamura, T. Ohsaka and K. Tokuda,
Electrochemistry, 66(3), 321-325 (1998).


SpectroelectrochemicalDetetion of an Intermediate in the Alcohol Oxidation Process with a Nitroxyl
Radicals ;
S. Kishioka, T. Ohsaka and K. Tokuda,
Chem. Lett.
, 341-344 (1998).


Infrared Spectroscopic Observation of Water at a Gold Electrode/Aqueous Perchlorate Solution Interface;
F. Kitamura, T. Ohsaka and K. Tokuda,
Electrochim. Acta., 42, 1235-1238 (1997).


Electrochemical Study on Monomer/ DimerEquilibria of a Series of Asymmetric ViologenMonolayers on
the Electrode Surface in the Presence of Hexafluorophosphate Ion;
S.A.John, H.Kasahara, T.Okajima, K.Tokuda and T.Ohsaka,
J. Electroanal. Chem.
, 436(1/2), 267- 270 (1997).


Electrocatalytic Reduction of Dioxygen in the Precence of N,N' - Dipentyl Viologen;
M. -K. Oh, T.Okajima, F. Kitamura, C.- W. Lee, K. Tokuda and T. Ohsaka,
Chem. Lett.
, 1997, 67-68 (1997).


Solcatochromic Linear Solcation Energy Relationship for Solubility of O2 in Various Media Containing
Tertaethylammonium Perchlorate;
Y. Che, M. Tsushima, T. Okajima, K. Kitamura and T. Ohsaka,
Anal. Sci., 13,1039-1042 (1997).


Voltammetric Behavior of Self - Assembled Monolayers of Novel Nickel (
U/ V) Pentaazamacrocyclic
Complex on Gold Electrode and Electrocatalytic Oxidation of Hydrogen Peroxide;
K. Vengatajalabathy Gobi, K. Tokuda and T. Ohsaka,
J. Electrochem. Soc. Jpn. (Denki Kagaku), 65 (6), 498-500 (1997).


Infrared Spectroscopic Observation of Water at a Polycrystalline Gold Electrode/Aqueous Halide Solution
Interface;
F. Kitamura, T. Ohsaka and K. Tokuda,
J. Electroanal. Chem.
, 412, 183-188 (1996).


Water- Induced Disproportionation of Superoxide Ion in Aprotic Solvents;
Y.Che, M.Tsushima, F.Matsumoto, T.Okajima, K.Tokuda and T.Ohsaka,
J. Phys. Chem., 100(51), 20134- 20137 (1996).


Electrogeneration
of Superoxide Ion at Mercury Electrodes with a Hydrophobic Adsorption Film in
Aqueous Media;
F.Matsumoto, K.Tokuda and T.Ohsaka,
Electroanalysis
, 8(7), 648- 653(1996).


Chemiluminescence of a CypridinaLuciferin Analogue by ElectrogeneratedSuperoxide Ion;
T.Okajima, K.Tokuda and T.Ohsaka,
Bioelectrochem. & Bioenerg., 41(2), 205- 208 (1996).


Relationship between the Skew Angle and Interplanar Distance in Four Bis (phthalocyaninato) Santhanide
(
V) Tetrabutylammonium Salts ([NBun4][LnVPc2]; Ln = Nd, Gd, Ho, Lu );
N. Koike, H. Vekusa, Y. Ohashi, C. Harnoode, F. Kitamura, T. Ohsaka and K. Tokuda,
Inorg. Chem., 35 (20), 5798-5804 (1996).


Electrogeneration of Superoxide Ion at
 α- Quinoline - Adsorbed Mercury electrode in Alkaline Aqueous
Solution;
T. Matsumoto, K. Tokuda and T. Ohsaka,
J. Deuterium Sci.
, 5 (1), 23 - 30 (1996).


Chemiluminescence of a Cypridina Luciferin Analogue by Electrogenerated Superoxide Ion in the
Presence of a Lipophilic Ascorbic Acid Dericative;
T. Okajima, K. Tokuda and T. Ohsaka,
J. Electrochem. Soc. Jpn (Denki Kagaku)
, 64 (12),1276 - 1279 (1996).


Response Time of Thin - Layer Electrolytic Cells to Potential - Step Signals;
K. Yamada, F, Kitamura, T. Ohsaka and K. Tokuda,
J. Electrochem. Soc., 143 (12),4006 - 4012 (1996).


Observation of Intermolecular Charge - Transfer Spectra for Propyl Viologen Dihalides in a Series of
Polyether Media;
H. Satoh, K. Tokuda and T. Ohsaka
Chem. Lett., 1996, 51 - 52(1996).


Coupling between Electron and Mass Transfer Kinetics in Electroactive Polymer Films- An Application of
In Situ Quartz Crystal Electrode;
N.Oyama and T.Ohsaka
Progress in Polym. Sci., 20(5), 761- 818(1995).


Mediated Electron Transfer of Polyethylene Oxide- Modified SuperoxideDismutase by Methyl Viologen;
T.Ohsaka, Y.Shintani, F.Matsumoto, T.Okajima and K.Tokuda,
Bioelectrochem. & Bioenerg.
, 37, 73- 76(1995).


Use of Hydrodynamic Chronocoulometry for Simultaneous Determination of Diffusion Coefficients and
Concentrations of Dioxygen in Various Media;
M.Tsushima, K.Tokuda and T.Ohsaka,
Anal. Chem., 66, 4551- 4556(1994).


Electrogeneration of Superoxide Ion on Thiophenol - Modified Gold Electrode in Aqueous Solution,;
F. Matsumoto, K. Tokuda and T. Ohsaka,
J. Electrochem. Soc. Jpn (Denki Kagaku), 63, No.12, 1205 - 1208(1995).


AC Voltammetry at Microcylinder Electrodes;
K. Tokuda, F. Kitamura, A. Kumagai and T. Ohsaka,
J. Electroanal. Chem.
, 396, 365 - 370(1995).

Books


Development of Non-Platinum-Based Electrocatalysts For Oxygen Reduction
T. Ohsaka and M. S. El-Deab
”Reacent Research Development in Electrochemistry.”
Transworld Research Network, Vol.7, 71-109 (2004).

T. Ohsaka and C. Raj (分担),
"Electrochemical Sensor Based on Self-Assembled Monolayers of Metallomacrocycles" in "Metal Complexes and Metals in Macromolecules", D. Wohrle and A. Pomogailo (Eds.), P.428-455, Wiley-VCH (2003).


大坂 武男、岡島 武義(分担)
"
新訂版 表面科学の基礎と応用"
日本表面科学会編、(株)エヌ・ティー・エス、印刷中.


大坂 武男(分担)
"
第3版 高分子辞典"
高分子学会編、朝倉書店、印刷中.


大坂 武男(分担)
"
電気化学測定マニュアル"
電気化学会編、丸善、(2002).


大坂 武男(分担)
"
分子機能材料"
界面ハンドブック、エヌ・ティー・エス P.730-7372001.


大坂 武男(分担)
"
電荷移動過程","サイクリックボルタンメトリー",
"
ポーラログラフィー","分子機能電極","ハイドロダイナミック・クロノクーロメトリー"
電気化学便覧(第5版)
電気化学会編、丸善(2000.


逢坂 哲弥,大坂 武男,松永 是(共編)
"
電気自動車"
丸善(2000.


T. Ohsaka, " Construction, Characterization and Application of Nano-Organized Electrode Systems " in " Precision Polymers and Nano-Organaized Systems " (Eds. T. Kunitake, S. Nakamura, N. Takahashi, N. Toshima), Kodansha, P.255-258(2000).


大坂 武男,井上 正康,大澤 俊彦,荒金 久美(共著)
"
活性酸素"
丸善(1999.


大坂武男(分担著)
"
有機膜の作製"
表面技術便覧
日刊工業新聞社,P. 723- 736 (1998).


T. Ohsaka, F. Matsumoto, T. Okajima, F. Kitamura and K. Tokuda, " Electrogeneration and Dismutation of Superoxide Ion in Aqueous Media " in " Novel Trends in Electroorganic Synthesis " (Ed. S. Torii), Kodansha, P.169 (1995).


T. Ohsaka, F. Matsumoto and K. Tokuda, "An Electrochemical Approach to Dismutation of Superoxide Ion Using a Biological Model System with a Hydrophobic/Hydrophilic Interface " in " Frontiers of Reactive Oxygen Species in Biology and Medicine " (Eds. K. Asada and T. Yoshikawa), ExcerptaMedica, P.91 (1994).


大坂武男(分担著)
"
化学用語辞典"
技報堂出版(株)(1992).


N.Oyama and T.Ohsaka(分担) "Voltammetric Diagnosis of Charge Transfer on Polymer- Coated Electrodes" in "Molecular Design of Electrode Surfaces" (Ed.R.W.Murray) John Wiley, P.333- 402(1992).


N.Oyama and T.Ohsaka
(分担) "Electrochmical Pulse Analysis of Multielectron Transfer in Electroactive Macromolecular Complexes" in "Marcromolecular Complexes- Dynamic Interactions and Electronic Processes"(Ed. E.Tsuchida). VCH- Publisher, New York, P.275- 313(1991).


小山 昇,大坂武男(分担)
"
高分子錯体 動的相互作用と電子過程 ―(土田英俊 編)"
学会出版センター,p.243- 262(1991).


小山 昇,大坂武男(分担)
"
電気化学法 応用測定マニュアル (逢坂哲弥・小山 編)"
講談社サイエンティフィク,p.126- 149(1990).


逢坂哲弥,小山 昇,大坂武男(共著)
"
電気化学法−基礎測定マニュアル"
講談社サイエンティフィク(1989).

Recent Representative Reviews (1996-2006)


大坂 武男、岡島 武義、
非白金系酸素電極の開発
ECO INDUSTRY
、 印刷中

大坂 武男、岡島 武義、
3世代型スーパーオキシドイオンセンサー
科学と教育、 印刷中

大坂 武男、岡島 武義、
酸素還元用非白金系電極触媒の開発
触媒年鑑(2005年版) 、 印刷中

大坂 武男、岡島 武義、
コバルト錯体とマンガン酸化物を組み合わせたDMFC用新規触媒
燃料電池、 印刷中

大坂 武男、岡島 武義、
燃料電池における酸素還元電極触媒の新展開
科学工業、 印刷中

岡島 武義、毛 蘭群、大坂 武男
サイクリックボルタンメトリーによる電極反応の可逆性及び電極反応機構の診断Electrochemistry70(8), 649-653 (2002).


大坂 武男
アドミッション・ポリシーの確立と明示を
化学と教育,48(5), 342 (2000).


大坂 武男
電位測定−参照電極・水溶液系−
Electrochemistry
68 (7), 610-6142000.


大坂 武男
分子修飾電極の速度論的解析および活性酸素種の反応制御への展開
Electrochemistry
68, 6082000.


北村 房男、岡島 武義、徳田 耕一、大坂 武男
電極/溶液界面の分子組織化:界面分子・イオンのダイナミック挙動と界面反応場の機能
表面,37(12), 661-6771999.


大坂 武男
O2
O3−オゾンがこわれるしくみ−
化学と教育,46(2), 84-87 (1998).


大坂 武男、松本 太
活性酸素種の生成・検出・反応−電気化学的アプローチによる基礎研究−
表面,34(10), 565-577 (1996).

Patents (1995-2006)


「酸素センサ」
特開 2005-017173 (2005)

「酸素還元用電極および電池」
特開 2004-241224 2004年)

「過酢酸の合成方法」
特開 2004-043365 2004年)


「過酢酸の電解合成方法」
特開2004-043900 2004年)


「電気化学的測定法」
特開 2004-085374 2004年)


「過酢酸の電解合成方法及び殺菌洗浄方法及び装置」
特開 2004-313780 2004年)


「過酢酸、過酸化水素同時分別分析法」
特開 2003-294694 2003年)


「電気化学酸素濃縮装置」
特開 2003-277021 2003年)


「溶液中の含有成分濃度測定法」
特開 2003-240712 2003年)


「酸素還元用電極及びそれを用いた電池」
特開 2003-249230 2003年)


センサ
特開 2003-166990 (2003)


「酸素還元用複合電極」
特開 2003-151567 (2003)


「電気化学用電極およびこれを用いるセンサー」
特開 2003-075390 (2003)


「酸素製造方法及び装置」
特開 2002-128508 2002年)


「3,4−ジヒドロキシフェニル酢酸及び/またはホモバニリン酸検出用修飾電極およびその検出方法」
特開 2001-264285 (2001)


「濃度測定用電極および濃度測定用センサー」
特開 2001-183338 (2001)


「修飾電極、それを用いたセンサおよび検出方法」
特開 2001-141695 (2001)


「活性酸素試験片」
特開 2001-050946 (2001)


「過酸化水素製造用電極およびその製造方法」
特開 2000-256887 (2000)


「酸素還元用電極および該電極を使用する過酸化水素の製造方法」
特開 2000-144466 (2000)


「電気化学用電極および該電極を使用するセンサー」
特開 07-280769 (1995)


2009 (C) Copyright by Ohsaka Lab., Department of Electronic Chemistry,
Tokyo Institute of Technology. All Rights Reserved.