"Davide Cavaliere,Atsunori Ikezawa,Takeyoshi Okajima,Hajime Arai","Diagnosis of Li-ion battery degradation based on resistive and diffusion-related transient voltage changes at early stage of discharge",,"Journal of Power Sources",,"Vol. 603",,,2024,Apr. "Wang Guanyu,Ikezawa Atsunori,Waki Keiko,Okajima Takeyoshi,Arai Hajime","Optimization of (Fe, N)-doped carbon black catalysts formed by rapid thermal annealing for oxygen reduction reaction in alkaline media","電気化学会第91回大会",,,,,,2024,Mar. "野中 菜々子,池澤 篤憲,岡島 武義,荒井 創","二機能性空気極内局所状態の光学観察に向けた指示物質の探索","電気化学会第91回大会",,,,,,2024,Mar. "吉田 光太朗,池澤 篤憲,岡島 武義,荒井 創","全固体4極式セルを用いた硫化物系固体電解質接合界面におけるLi+移動の電気化学測定","電気化学会第91回大会",,,,,,2024,Mar. "中原 康太,池澤 篤憲,岡島 武義,荒井 創","ミクロおよびメソ孔径が白金の電子構造および酸素還元活性に与える影響","電気化学会第91回大会",,,,,,2024,Mar. "Chihiro Yamamoto,Atsunori Ikezawa,Takeyoshi Okajima,Hajime Arai","Phase Transition Kinetics of LiFePO4 Biphasic Systems in Aqueous and Non-aqueous Electrolytes",,"Electrochemistry",,"Vol. 92","Issue 2","Page 027001",2024,Feb. "Kota Nakahara,Atsunori Ikezawa,Takeyoshi Okajima,Hajime Arai","Enhanced Oxygen Reduction Activity of Platinum Micropore",,"ChemElectroChem","Chemistry Europe","Vol. 11","No. 11","Page e202300654",2024,Jan. "池澤篤憲,瀧井 健介,喜田 樹里,岡島 武義,荒井 創","触媒の炭素腐食反応活性に立脚した二機能性空気極の設計","第64回電池討論会",,,,,,2023,Nov. "小笹 亮平,池澤 篤憲,佐藤 茂樹,陶山 博司,松永 朋也,岡島 武義,荒井 創","アルカリ電解液における高結晶性層状水和二酸化マンガン正極の充放電メカニズム解明","第64回電池討論会",,,,,,2023,Nov. "Goro Fukunishi,Atsunori Ikezawa,Takeyoshi Okajima,Fusao Kitamura,Kota Suzuki,Masaaki Hirayama,Ryoji Kanno,Hajime Arai","Impedance analysis and cyclability evaluation of graphite composite electrodes with all-solid-state three-electrode cells",,"ACS Applied Energy Materials","American Chemical Society","Vol. 6","Issue 21","pp. 10908-10917",2023,Oct. "平松輝也,池澤 篤憲,岡島 武義,荒井 創","濃厚酸性水溶液を電解液とするプロトン電池における水素発生反応の抑制","2023年 電気化学秋季大会",,,,,,2023,Sept. "毛枝佑太,池澤 篤憲,岡島 武義,荒井 創","QCMとコンフォーカル光学系を組み合わせたアルカリ水溶液における亜鉛極充放電過程のその場測定","2023年 電気化学秋季大会",,,,,,2023,Sept. "瀧井健介,池澤 篤憲,岡島 武義,荒井 創","炭素および酸化物を触媒担体に用いた積層型触媒層を有する二機能性空気極の電気化学特性","2023年 電気化学秋季大会",,,,,,2023,Sept. "Goro Fukunishi,Mayu Tabuchi,Atsunori Ikezawa,Takeyoshi Okajima,Fusao Kitamura,Kota Suzuki,Masaaki Hirayama,Ryoji Kanno,Hajime Arai","AC impedance analysis of NCM523 composite electrodes in all-solid-state three electrode cells and their degradation behavior",,"Journal of Power Sources",,"Vol. 564","No. 30","pp. 232864",2023,Mar. "Hajime Arai,Goro Fukunishi,Atsunori Ikezawa,Takeyoshi Okajima","Electrochemistry of all-solidstate cells using reduced lithium titanate as reference electrodes","Asian Conference on Electrochemical Power Sources-ACEPS'11",,,,,,2022,Dec. "Goro Fukunishi,Mayu Tabuchi,Atsunori Ikezawa,TAKEYOSHI OKAJIMA,FUSAO KITAMURA,Kouta Suzuki,Masaaki Hirayama,Ryoji KANNO,Hajime Arai","Electrochemical characteristics and degradation analysis of NCM523 with all solid state three electrode cells","IBA2022",,,,,,2022,Oct. "福西吾郎,池澤篤憲,岡島武義,北村房男,鈴木耕太,平山雅章,菅野了次,荒井創","チタン酸リチウム部分還元体を有する参照極を用いた全固体系における黒鉛の電極特性・サイクル特性評価","第62回電池討論会",,,,,,2021,Nov. "福西吾郎,田淵真優,池澤篤憲,岡島武義,北村房男,鈴木耕太,平山雅章,菅野了次,荒井創","チタン酸リチウム部分還元体を有する参照極を用いた全固体系における三元系正極材料の電極特性評価","第62回電池討論会",,,,,,2021,Nov. "福西吾郎,田淵真優,池澤篤憲,岡島武義,北村房男,鈴木耕太,平山雅章,菅野了次,荒井創","チタン酸リチウムのメッシュ型参照極を用いた全固体三極式セルにおけるインピーダンス測定","2021年 電気化学会第88回大会",,,,,,2021,Mar. "福西吾郎,池澤篤憲,岡島武義,北村房男,鈴木耕太,平山雅章,菅野了次,荒井創","還元型チタン酸リチウム参照極を用いる全固体電池用電極のインピーダンス測定と解析","第61回 電池討論会",,,,,,2020,Nov. "Goro Fukunishi,Atsunori Ikezawa,TAKEYOSHI OKAJIMA,FUSAO KITAMURA,Kouta Suzuki,Masaaki Hirayama,Ryoji KANNO,Hajime Arai","All-Solid-State Three-Electrode Cells with Reduced Li4 Ti5 O12 Reference Electrode","PRiME 2020",,,,,,2020,Oct. "Atsunori Ikezawa,Goro Fukunishi,TAKEYOSHI OKAJIMA,FUSAO KITAMURA,Kota Suzuki,Masaaki Hirayama,Ryoji KANNO,Hajime Arai","Performance of Li4Ti5O12-based Reference Electrode for the Electrochemical Analysis of All-solid-state Lithium-ion Batteries",,"Electrochemistry Communications",,"Vol. 116",," 106743",2020,Mar. "池澤篤憲,福西吾郎,調佳祐,北村房男,岡島武義,鈴木耕太,平山雅章,菅野了次,荒井創","参照極を用いた全固体電池におけるコバルト酸リチウムの挙動解析","第60回 電池討論会",,,,,,2019,Nov. "Atsunori Ikezawa,Goro Fukunishi,Keisuke Shirabe,FUSAO KITAMURA,TAKEYOSHI OKAJIMA,Kouta Suzuki,Masaaki Hirayama,Ryoji KANNO,Hajime Arai","Behavior of Lithium Cobalt Oxide in Two-and Three-Electrode All-Solid-State Cells","9th Lithum Battery Discussions",,,,,,2019,Sept. "大坂武男,岡島武義","第4版 現代回面コロイド化学の基礎 原理・応用・測定ソリューション (5.3.6, pp.247-250)",,,"丸善出版",,,,2018,Apr. "Wu, Y.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Lithium intercalation into graphene ribbons of glassy carbon",,"International Journal of Electrochemical Science",,"Vol. 12","No. 2","pp. 1004-1013",2017, "Ferdousi, B.N.,Islam, M.M.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Exploring pKa of peroxycitric acid coexisting with citric acid in aqueous solution with voltmmetric, potentiometic and chromatographic approaches",,"International Journal of Electrochemical Science",,"Vol. 11","No. 7","pp. 6215-6228",2016, "Miah, M.R.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Oxygen reduction reaction at in situ fabricated active gold over layers in acidic media",,"International Journal of Electrochemical Science",,"Vol. 11","No. 9","pp. 7909-7921",2016, "Ismail, I.,TAKEYOSHI OKAJIMA,Susumu Kawauchi,Ohsaka, T.","Studies on the early oxidation process of dopamine by electrochemical measurements and quantum chemical calculations",,"Electrochimica Acta",,"Vol. 211",,"pp. 777-786",2016, "Ye, X.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Probable problems in the analysis of chemical oxygen demand of wastewaters treated by advanced oxidation process: residual H2O2 and acidity of the treated waters",,"Desalination and Water Treatment",,"Vol. 57","No. 56","pp. 27138-27143",2016, "Manabe, A.,Domon, H.,Kosaka, J.,Hashimoto, T.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Study on separator for alkaline water electrolysis",,"Journal of the Electrochemical Society",,"Vol. 163","No. 11","pp. F3139-F3145",2016, "Raj, C.R.,Samanta, A.,Noh, S.H.,Mondal, S.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Emerging new generation electrocatalysts for the oxygen reduction reaction",,"Journal of Materials Chemistry A",,"Vol. 4","No. 29","pp. 11156-11178",2016, "Noh, S.H.,Seo, M.H.,Kang, J.,TAKEYOSHI OKAJIMA,Han, B.,Ohsaka, T.","Towards a comprehensive understanding of FeCo coated with N-doped carbon as a stable bi-functional catalyst in acidic media",,"NPG Asia Materials",,"Vol. 8","No. 9",,2016, "Jiajia Wu,Da Zhang,Hideharu Niwa,Yoshihisa Harada,Masaharu Oshima,Hironori Ofuchi,Yuta Nabae,Takeyoshi Okajima,Takeo Ohsaka","Enhancement in Kinetics of the Oxygen Reduction Reaction on a Nitrogen-Doped Carbon Catalyst by Introduction of Iron via Electrochemical Methods",,"Langmuir","American Chemical Society","Vol. 31","No. 19","pp. 5529-5536",2015,Apr. "Nilushika, D.,Awad, M.I.,Saleh, M.M.,TAKEYOSHI OKAJIMA,Mao, L.,Ohsaka, T.","A novel fabrication of a polymeric ionic liquid hybrid film modified electrode and its successful application to the electrogeneration of a superoxide anion in aqueous media",,"Chemical Communications",,"Vol. 51","No. 16","pp. 3343-3346",2015, "Azhagumuthu Muthukrishnan,Yuta Nabae,Takeyoshi Okajima,Takeo Ohsaka","Kinetic Approach to Investigate the Mechanistic Pathways of Oxygen Reduction Reaction on Fe-Containing N-Doped Carbon Catalysts",,"ACS Catalysis","American Chemical Society",,,"pp. 5194-5202",2015, "Awaludin, Z.,Safuan, M.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Investigating the physical and electrochemical effects of cathodic polarization treatment on TaOx",,"Journal of Materials Chemistry A",,"Vol. 3","No. 32","pp. 16791-16800",2015, "Azhagumuthu Muthukrishnan,Yuta Nabae,Teruaki Hayakawa,Takeyoshi Okajima,Takeo Ohsaka","Fe-containing polyimide-based high-performance ORR catalysts in acidic medium: a kinetic approach to study the durability of catalysts",,"Catalysis Science & Technology","The Royal Society of Chemistry","Vol. 5","No. 1","pp. 475-483",2015, "Azhagumuthu Muthukrishnan,Yuta Nabae,Cha Wen Chang,Takeyoshi Okajima,Takeo Ohsaka","A high-performance Fe and nitrogen doped catalyst derived from diazoniapentaphene salt and phenolic resin mixture for oxygen reduction reaction",,"Catalysis Science & Technology","The Royal Society of Chemistry","Vol. 5","No. 3","pp. 1764-1774",2015, "Awaludin, Z.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Electroreduced tantalum pentaoxide for hydrogen evolution reaction",,"Chemistry Letters",,"Vol. 43","No. 8","pp. 1248-1250",2014, "Awaludin, Z.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Preparation of reduced tantalum pentoxide by electrochemical technique for oxygen reduction reaction",,"Journal of Power Sources",,"Vol. 268",,"pp. 728-732",2014, "Li,D.-A.,TAKEYOSHI OKAJIMA,Mao, L.,Ohsaka, T.","Bioelectrocatalytic oxygen reduction reaction by bilirubin oxidase adsorbed on glassy carbon and edge-plane pyrolytic graphite electrodes: Effect of redox mediators",,"International Journal of Electrochemical Science",,"Vol. 9","No. 3","pp. 1390-1398",2014, "Patil, B.,Kobayashi, Y.,Fujikawa, S.,TAKEYOSHI OKAJIMA,Mao, L.,Ohsaka, T.","Direct electrochemistry and intramolecular electron transfer of ascorbate oxidase confined on l-cysteine self-assembled gold electrode",,"Bioelectrochemistry",,"Vol. 95",,"pp. 15-22",2014, "Kanazawa, A.,Daisaku, T.,TAKEYOSHI OKAJIMA,Uchiyama, S.,Susumu Kawauchi,Ohsaka, T.","Characterization by electrochemical and X-ray photoelectron spectroscopic measurements and quantum chemical calculations of N-containing functional groups introduced onto glassy carbon electrode surfaces by electrooxidation of a carbamate salt in aqueous",,"Langmuir",,"Vol. 30","No. 18","pp. 5297-5305",2014, "岡島武義","第5回 電気化学測定法の基礎(2) : 回転ディスク電極および回転リング-ディスク電極を用いる対流ボルタンメトリー",,"電気化学および工業物理化学 : denki kagaku","The Electrochemical Society of Japan","Vol. 81","No. 9","pp. 717-724",2013,Sept. "岡島武義","第4回 電気化学測定法の基礎(1) : サイクリックボルタンメトリ",,"電気化学および工業物理化学 : denki kagaku","The Electrochemical Society of Japan","Vol. 81","No. 8","pp. 655-658",2013,Aug. "Awaludin, Z.,Sheng Moo, J.G.,TAKEYOSHI OKAJIMA,Ohsaka, T.","TaOx-capped Pt nanoparticles as active and durable electrocatalysts for oxygen reduction",,"Journal of Materials Chemistry A",,"Vol. 1","No. 46","pp. 14754-14765",2013, "Awaludin, Z.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Formation of Pt-Li alloy and its activity towards formic acid oxidation",,"Electrochemistry Communications",,"Vol. 31",,"pp. 100-103",2013, "Zhang, D.,TAKEYOSHI OKAJIMA,Lu, D.,Ohsaka, T.","Electroless deposition of platinum nanoparticles in room-temperature ionic liquids",,"Langmuir",,"Vol. 29","No. 38","pp. 11931-11940",2013, "Sheng Moo, J.G.,Awaludin, Z.,TAKEYOSHI OKAJIMA,Ohsaka, T.","An XPS depth-profile study on electrochemically deposited TaOx",,"Journal of Solid State Electrochemistry",,"Vol. 17","No. 12","pp. 3115-3123",2013, "Wang, X.,Li, D.,Watanabe, T.,Shigemori, Y.,Mikawa, T.,TAKEYOSHI OKAJIMA,Mao, L.,Ohsaka, T.","A glucose/O 2 biofuel cell using recombinant thermophilic enzymes",,"International Journal of Electrochemical Science",,"Vol. 7","No. 2","pp. 1071-1078",2012, "Rahman, M.R.,Awad, M.I.,Kitamura, F.,TAKEYOSHI OKAJIMA,Ohsaka, T.","A comparative study of ORR at the Pt electrode in ammonium ion-contaminated H 2SO 4 and HClO 4 solutions",,"Journal of Power Sources",,"Vol. 220",,"pp. 65-73",2012, "Masud J.,Alam M.T.,Awaludin Z.,El-Deab M.S.,TAKEYOSHI OKAJIMA,Ohsaka T.","Electrocatalytic oxidation of methanol at tantalum oxide-modified Pt electrodes",,"Journal of Power Sources",,"Vol. 220",,"pp. 399-404",2012, "Patil, B.,Fujikawa, S.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Enzymatic direct electron transfer at ascorbate oxidase-modified gold electrode prepared by one-step galvanostatic method",,"International Journal of Electrochemical Science",,"Vol. 7","No. 6","pp. 5012-5019",2012, "Masud, J.,Alam, M.T.,Miah, M.R.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Enhanced electrooxidation of formic acid at Ta2O 5-modified Pt electrode",,"Electrochemistry Communications",,"Vol. 13","No. 1","pp. 86-89",2011, "Saleh, F.S.,Rahman, M.R.,Kitamura, F.,TAKEYOSHI OKAJIMA,Mao, L.,Ohsaka, T.","A Simple and Effective Way to Integrate Nile Blue Covalently onto Functionalized SWCNTs Modified GC Electrodes for Sensitive and Selective Electroanalysis of NADH",,"Electroanalysis",,"Vol. 23","No. 2","pp. 409-416",2011, "Oyama, T.,Yamaguchi, S.,TAKEYOSHI OKAJIMA,Ohsaka, T.,Oyama, N.","Time-differential frequency response of electrochemical quartz crystal electrode during the dissolution and deposition processes of Au in H2SO4solution containing chloride ion",,"Journal of Electroanalytical Chemistry",,"Vol. 659","No. 1","pp. 36-42",2011, "Abdullah, A.M.,Mohammad, A.M.,TAKEYOSHI OKAJIMA,Kitamura, F.,Ohsaka, T.","Effect of relative humidity on temperature and current distributions within a segmented H2/air PEM fuel cell",,"ECS Transactions",,"Vol. 35","No. 34","pp. 293-302",2011, "Zhang, D.,Chang, W.C.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Electrodeposition of platinum nanoparticles in a room-temperature ionic liquid",,"Langmuir",,"Vol. 27","No. 23","pp. 14662-14668",2011, "Islam, M.M.,Ferdousi, B.N.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Liquid chromatographic separation and simultaneous analyses of peroxycitric acid and citric acid coexisting with hydrogen peroxide in the equilibrium mixture",,"Journal of Chromatographic Science",,"Vol. 49","No. 1","pp. 40-45",2011, "Masud, J.,Alam, T.M.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Catalytic electrooxidation of formaldehyde at Ta2O 5-modified Pt electrodes",,"Chemistry Letters",,"Vol. 40","No. 3","pp. 252-254",2011, "Alam, M.T.,Masud, J.,Islam, M.M.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Differential capacitance at Au(111) in 1-alkyl-3-methylimidazolium tetrafluoroborate based roomerature ionic liquids",,"Journal of Physical Chemistry C",,"Vol. 115","No. 40","pp. 19797-19804",2011, "Saleh, F.S.,TAKEYOSHI OKAJIMA,Kitamura, F.,Mao, L.,Ohsaka, T.","Poly(phenosafranin)-functionalized single-walled carbon nanotube as nanocomposite electrocatalysts: Fabrication and electrocatalysis for NADH oxidation",,"Electrochimica Acta",,"Vol. 56","No. 13","pp. 4916-4923",2011, "Saleh, F.S.,Rahman, M.R.,TAKEYOSHI OKAJIMA,Mao, L.,Ohsaka, T.","Determination of formal potential of NADH/NAD+redox couple and catalytic oxidation of NADH using poly(phenosafranin)-modified carbon electrodes",,"Bioelectrochemistry",,"Vol. 80","No. 2","pp. 121-127",2011, "Awaludin, Z.,Suzuki, M.,Masud, J.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Enhanced electrocatalysis of oxygen reduction on Pt/TaO x/GC",,"Journal of Physical Chemistry C",,"Vol. 115","No. 51","pp. 25557-25567",2011, "Rahman, M.R.,Saleh, F.S.,TAKEYOSHI OKAJIMA,Ohsaka, T.","PH dependence of the size and crystallographic orientation of the gold nanoparticles prepared by seed-mediated growth",,"Langmuir",,"Vol. 27","No. 8","pp. 5126-5135",2011, "TAKEO OHSAKA,TAKEYOSHI OKAJIMA,Ohsaka, T.","Fabrication of Au(III) Nanoparticle-like Electrode through a Seed-Mediated Growth",,"Chem.Commun.",,"vol. 46",,"pp. 5172-5174",2010,Sept. "TAKEO OHSAKA,Saleh, M.M.,Awad, M.I.,TAKEYOSHI OKAJIMA,Kitamura, F.,Ohsaka, T.","Temperature Effect on the Recovery of SO2-PoisonedGC/Nano-Pt Electrode towards Oxygen Reduction",,"J.Solid State Electrochem.",,"vol. 14",,"pp. 1727-1734",2010,July "TAKEO OHSAKA,Awad, M.I.,El-Deab, M.S.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Hydrogen Spillover Phenomenon:Enhanced Reversible Hydrogen Adsorption/Desorption at Ta2O5-Coated Pt Electrode in Acidic Media",,"Electrochim.Acta",,"vol. 55",,"pp. 3528-3536",2010,May "Rahman, M.R.,TAKEYOSHI OKAJIMA,Ohsaka, T.","Selective detection of As(III) at the Au(111)-like polycrystalline gold electrode",,"Analytical Chemistry",,"Vol. 82","No. 22","pp. 9169-9176",2010, "Md.M.Islam,T.Imase,T.Okajima,M.Takahashi,Y.Niikura,N.Kawashima,Y.Nakamura,T.Ohsaka","Stability of Superoxide Ion in Imidazolium Cation-Based Room-Temperature Ionic Liquids",,"J.Phys.Chem.A",,"Vol. 113",,"p. 912",2009,Oct. "M.T.Alam,Md.M.Islam,T.Okajima,T.Ohsaka","Electrical Double Layer in Mixtures of Room-Temperature Ionic Liquids",,"J.Phys.Chem.C",,"Vol. 113",,"p. 6596",2009,June "A.N.Chowdhury,M.T.Alam,T.Okajima,T.Ohsaka","Fabrication of Au(III) Facet Enriched Electrode on Glassy Carbon",,"J.Electroanal.Chem.",,"Vol. 634",,"p. 35",2009,Apr. "大坂武男,岡島武義","単結晶電極の反応性、第3版 現代界面コロイド化学の基礎、日本化学会編、丸善(株)",,,"日本化学会編、丸善(株)",,,"p. 199-203",2009,Apr. "大坂武男,岡島武義","電気化学測定・解析テクニック&事例集ー電池/キャパシタ/めっき/センサ、(株)情報機構",,,"(株)情報機構",,,,2009,Mar. "Md.M.Islam,T.Okajima,S.Kojima,T.Ohsaka","Water Electrolysis : An Excellent Approach for the Removal of Water from Ionic Liquids",,"Chem.Commun.",,"Vol. 42",,"p. 5330",2008,Oct. "A.M.Abdullah,T.Okajima,F.Kitamura,T.Ohsaka","Effect of Operating Conditions on the Acidity of H2/Air PEM Fuel Cells' Water",,"ECS Transactions",,"Vol. 16",,"p. 543",2008,Oct. "Md.M.Islam,T.Okajima,T.Ohsaka","In Situ CCD Video and Voltammetric Studies on Enhanced Cathodic Peak Observed at a Hanging Mercury Drop Electrode during Consecutive Two One-Electron Redox Reactions in Aprotic Solutions",,"J.Electroanal.Chem.",,"Vol. 618",,"pp. 1-10",2008,Aug. "岡島武義,大坂武男","高分子膜および自己組織化膜(層)(SAM)修飾電極",,"Electrochemistry",,"Vol. 76","No. 6","pp. 434-440",2008,June "Md.M.Hossain,Md.M.Islam,S.Ferdousi,T.Okajima,T.Ohsaka","Anodic Stripping Voltammetric Detection of Arsenic(III) at Gold Nanoparticle-Modified Glassy Carbon Electrodes Prepared by Electrodeposition in the Presence of Various Additives",,"Electroanalysis",,"Vol. 20",,"p. 2435",2008,June "T.Oyama,T.Okajima,T.Ohsaka,S.Yamaguchi,N.Oyama","In Situ Electrochemical Quartz Crystal Microbalance Measurement of Au Deposition and Dissolution in Room-Temperature Ionic Liquid Containing Chloride Ion",,"Bull.Chem.Soc.Jpn.",,"Vol. 81","No. 6","pp. 726-732",2008,June "M.T.Alam,Md.M.Islam,T.Okajima,T.Ohsaka","Cpacitance Measurements in a Series of Room-Temperature Ionic Liquids at Glassy Carbon and Gold Electrode Interfaces",,"J.Phys. Chem.C",,"Vol. 112",,"p. 16600",2008,May "M.S.El-Deab,S.H.Othman,T.Okajima,T.Ohsaka","Non-platinum Electrocatalysts:Manganese Oxide Nanoparticle-Cobaltporphyrin Binary Catalysts for Oxygen Reduction",,"J.Appl.Electrochem.",,"Vol. 38",,"pp. 1445-1451",2008,May "A.M.Abdullah,T.Okajima,F.Kitamura,T.Ohsaka","A Simple In Situ Characterization Technique for the Onset of the Chemical Degradation of OEM Fuel Cells' Fluorinated Membranes",,"Electrochem.Commun.",,"Vol. 10",,"p. 1732",2008,Apr. "M.T.Alam,Md.M.Islam,T.Okajima,T.Ohsaka","Ionic Liquid Structure Dependent Electrical Double Layer at the Mercury Interface",,"J.Phys.Chem. C",,"Vol. 112","No. 7","pp. 2601-2606",2008,Mar. "A.M.Mohammad,A.I.Abdelrahman,M.S.El-Deab,T.Okajima,T.Ohsaka","On the Aggregation Phenomena of Au Nanoparticles:Effect of Substrate Roughness on the Particle Size",,"Colloids and Surfaces A : Physicochem. Eng. Aspects",,"Vol. 318",,"pp. 78-83",2008,Jan. "M.T.Alam,Md.M.Islam,T.Okajima,T.Ohsaka","Measurements of Differential Capacitance at Mercury/Room-Temperature Ionic Liquids Interfaces",,"J.Phys.Chem.C",,"Vol. 111","No. 49","pp. 18326-18333",2007,Nov. "M.M.Saleh,M.I.Awad,T.Okajima,K.Suga,T.Ohsaka","Characterization of Oxidized Reticulated Vitreous Carbon Electrode for Oxygen Reduction Reaction in Acid Solutions",,"Electrochim. Acta",,"Vol. 52",,"pp. 3095-3104",2007,Nov. "Md.M.Islam,M.T.Alam,T.Okajima,T.Ohsaka","Nonlinear Phenomena at Mercury Electrode/Room-Temperature Ionic Liquid(RTIL) Interfaces:Polarographic Streaming Maxima and Current Oscillation",,"J.Phys.Chem.B",,"Vol. 111","No. 44","pp. 12849-12856",2007,Oct. "B.N.Ferdousi,Md.M.Islam,T.Okajima,T.Ohsaka","Electroreduction of Peroxycitric Acid Coexisting with Hydrogen Peroxide in Aqueous Solution",,"Electrochim. Acta",,"Vol. 53",,"pp. 968-974",2007,Aug. "A.M.Abdullah,T.Okajima,A.M.Mohammad,F.Kitamura,T.Ohsaka","Temperature Gradients Measurements within a Segmented Hydrogen Gas/Air PEM Fuel Cell",,"J.Power Sources",,"Vol. 172",,"pp. 209-214",2007,July "M.T.Alam,Md.M.Islam,T.Okajima,T.Ohsaka","Measurements of Differential Capacitance in Room Temperature Ionic Liquid at Mercury,Glassy Carbon and Gold Electrode Interfaces",,"Electrochem. Commun.",,"Vol. 9",,"pp. 2370-2374",2007,July "T.Oyama,T.Okajima,T.Ohsaka","Electrodeposition of Gold at Glassy Carbon Electrodes in Room-Temperature Ionic Liquids",,"J.Electrochem.Soc.",,"Vol. 154","No. 6","pp. D322-D327",2007,June "S.Sata,T.Okajima,F.Kitamura,K.kaneda,T.Ohsaka","Enhanced Hydrogen Adsorption/Desorption Chracteristic of Ta2O5-Coated Pt Electrode Prepared by Electrodeposition of Ta and the Subsequent Calcination",,"Chem.Lett.",,"Vol. 36","No. 4","pp. 572-573",2007,Apr. "D.Zhang,D.Chi,T.Okajima,T.Ohsaka","Catalytic Activity of Dual Catalysts System Based on Nano-Manganese Oxide and Cobalt Octacyanophthalocyanine toward Four-Electron Reduction of Oxygen in Alkaline Media",,"Electrochim. Acta",,"Vol. 52",,"pp. 5400-5406",2007,Mar. "大坂武男,岡島武義","スーパーオキシドイオンバイオセンサの開発",,"化学工業",,"Vol. 58","No. 3","pp. 39?45",2007,Mar. "A.N.Chowdhury,S.Ferdousi,Md.M.Islam,T.Okajima,T.Ohsaka","Arsenic Detection by Nanogold/Conducting-Polymer-Modified Glassy Carbon Electrodes",,"J.Appl.Polym.Sci.",,"Vol. 104",,"pp. 1306-1311",2007,Mar. "M.M.Saleh,T.Okajima,M.Hayase,F.Kitamura,T.Ohsaka","Exploring the Effects of Symmetrical and Asymmetrical Relative Humidity on the Performance of Hydrogen Gas/Air PEM Fuel Cell at Different Temperatures",,"J.Power Sources",,"Vol. 164",,"pp. 503-509",2007,Mar. "K.Ding,T.Okajima,T.Ohsaka","Acclerated Electron-Transfer Reaction of the Molecular Oxygen/Superoxide Ion Redox Couple on Multi-Walled Carbon Nanotubes- Modified Edge-Plane Pyrolytic Graphite Electroide in Room-Temperature Ionic Liquids",,"Electrochemistry",,"Vol. 75","No. 1","pp. 35-38",2007,Jan. "Mahmoud M. Saleh,Mohamed I. Awad,Takeyoshi Okajima,Kosaku Suga,Takeo Ohsaka","Characterization of oxidized reticulated vitreous carbon electrode for oxygen reduction reaction in acid solutions",,"Electrochimica.Acta","Elsevier","Vol. 52",,"pp. 3095?3104",2007, "大坂武男,岡島武義","表面科学の基礎と応用 3.6.3分子機能電極 ; 日本表面科学会編",,"(株)NTS","(株)NTS",,,"pp. 1403-1408",2004, "Takeyoshi Okajima,Takeo Ohsaka","Chemiluminescence of lucigenin by electrogenerated superoxide ions in aqueous solutions",,"Luminescence",,"Vol. 18","No. 1","pp. 49-57",2003, "Takeyoshi Okajima,Takeo Ohsaka","Chemiluminescence of 3-methylindole based on electrogeneration of superoxide ion in acetonitrile solutions",,"J. Electroanal. Chem.",,"Vol. 523","No. 1-2","pp. 34-39",2002, "Takeyoshi Okajima,Takeo Ohsaka","Electrogenerated chemiluminescence of lucigenin enhanced by the modifications of electrodes with self-assembled monolayers and of solutions with surfactants",,"J. Electroanal. Chem.",,"Vol. 534",,"pp. 181-187",2002, "Takeyoshi Okajima,Takeo Ohsaka","Chemiluminescence of indole and its derivatives induced by electrogenerated superoxide ion in acetonitrile solutions",,"Electrochim. Acta",,"Vol. 47",,"pp. 1561-1565",2002, "M. S. Saha,Y.Che,T.Okajima,T.Kiguchi,Y.Nakamura,K.Tokuta,T.Ohsaka","Current Oscillation Behavior of the O2/O2- Redox Couple at a HMDE in Non-aqueous Aprotic Media",,"J. Electroanal. Chem.",,"Vol. 496","No. 1+2","pp. 61-68",2001, "M.Takahashi,A.Shimizu,T.Karakasa,T.Okajima,T.Ohsaka,N.Kawashima","Studies on Active Oxygen Generation by Addition of Reduced Polyaniline",,"Material Technology",,"Vol. 18","No. 8","pp. 317-321",2000, "Takeyoshi Okajima,Koichi Tokuda,Takeo Ohsaka","Electrochemical behavior of a Cypridina luciferin analogue in acetonitrile solutions in the presence of proton acceptors",,"J. Electroanal. Chem.",,"Vol. 476","No. 1","pp. 46-53",1999, "S. A. John,Hideo Kasahara,Takeyoshi Okajima,Koichi Tokuda,Takeo Ohsaka","Electrochemical Study on Monomer / Dimer Equilibria of a Series of Asymmetric Viologen Monolayers on the Elecrode Surface in the Plesence of Hexafluorophosphate Ion",,"J. Electroanal . Chem.",,"Vol. 437",,"pp. 267-270",1997, "Takeyoshi Okajima,Koichi Tokuda,Takeo Ohsaka","Chemiluminescence of a Cypridina luciferin analogue by electrogenerated superoxide ion",,"Biolectrochem. and Bioenerg.",,"Vol. 41","No. 2","pp. 205-208",1996, "Takeyoshi Okajima,Koichi Tokuda,Takeo Ohsaka","Chemiluminescence of a Cypridina Luciferin Analogue by Electrogenerated Superoxide Ion in the Presence of a Lipophilic Ascorbic Acid Derivative",,"Denki Kagaku ( presently Electrochemistry )",,"Vol. 64","No. 12","pp. 1276-1279",1996, "TAKEYOSHI OKAJIMA","Electrical Equivalent Circuit Parameters for Montmorillonite Clay Film-Coated Quartz Crystal Oscillators in contact with air, Moisture and Electrolyte Solutions",,"Electrochimica Acta",,"Vol. 38","No. 6","pp. 747-756",1993, "岡島武義","Kinetic Studies on Charge-Transfer Processes at Polymer-Modified Electrodes",,,,,,,1993, "TAKEYOSHI OKAJIMA","Piezoelectric Admittance Measurements of Montmorillonite/Poly(Vinyl alcohol)Composite Film-Coated Quartz Crystal Oscillators",,"Bull. Chem. Soc. Jpn.",,"Vol. 65","No. 7","pp. 1884-1890",1992, "TAKEYOSHI OKAJIMA","Electrode Kinetics of[Ru(NH┣D23┫D2)┣D26┫D2]┣D13+'/, 2+┫D1 Couple Confined in Montmorillonite Clay/Poly(vinyl alcohol)composite Films on Graphite Electrodes and Film Permeation of Electroactive Solution Species",,"Electrochimica Acta",,"Vol. 37","No. 10","pp. 1865-1872",1992, "TAKEYOSHI OKAJIMA","Electrode Kinetics of the[Fe(CN)┣D26┫D2]┣D1'4'-'/, 3-┫D1 Complex Confined in Cationic Perfluoropolymer Films on Electrode Surfaces",,"Bull. Chem. Soc. Jpn.",,"Vol. 64",,"pp. 4",1991, "TAKEYOSHI OKAJIMA","Electrode Kinetics of[Ru(NH┣D23┫D2)┣D26┫D2]┣D13+'/, 2+┫D1 Complex Confined in Montmorillonite Clay Coatings on Graphite Electrodes",,"J. Electroanal. Chem.",,"Vol. 315",,"pp. 1-2",1991, "岡島武義","金属錯体薄膜の電子移動反応解析",,,,,,,1987,