発表論文

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発表論文

2024
原著論文： Research papers
  • Y. Chida, T. Tomimori, N. Todoroki and T. Wadayama,”Pt-Surface Stabilization by High-Entropy Alloys for Enhancing Oxygen Reduction Reaction Property: Single-Crystal Model Catalyst Study”, Electrochemistry Communications, 159, 2024, 107657. https://doi.org/10.1016/j.elecom.2023.107657
  • Y. Chida, H. Kamikawa, N. Todoroki and T. Wadayama,”Oxygen Reduction Reaction Activity Enhancement of Dry-Process-Synthesized Pt(111)/Nb:SnO2(101)/Pt(111) Coherent Lattice Stacking Model Catalyst Surface”, Materials Transactions, 65, 2024, 125. https://doi.org/10.2320/matertrans.MT-M2023172

2023
原著論文： Research papers
  • M. Ishijima, N. Todoroki, J. L. C. Huaman, Y. Tanaka and J. Balachandran,”Kinetically Controlled Direct Synthesis of B2 and A1 Structured Cu-Pd Nanoparticles”, Inorganic Chemistry, 62, 2023, 19270. https://doi.org/10.1021/acs.inorgchem.3c02766
  • 小島宏一, 長澤兼作, 轟直人, 伊藤良一, 松井敏明, 中島良, “再生可能エネルギーを直接利用する水電解技術：再生可能エネルギーの電力変動が電解槽の耐久性に及ぼす影響”, 水素エネルギーシステム, 2023, 48, 189-213. ダウンロード先（トヨタモビリティ基金WEBサイト）
  • K. Hayashi, H. Kamkawa, N. Todoroki, T. Wadayama, “Suppressed Hydrogen Peroxide Generation and Enhanced Electrochemical Hydrogen Oxidation Activity for Tungsten-Oxide-Modified Platinum Surface Model Catalyst System”, Materials Transactions, 64, 2023, 2431-2439. https://doi.org/10.2320/matertrans.MT-MH2022004
  • N. Todoroki, R. Kudo, K. Hayashi, M. Yokoi, N. Naraki and T. Wadayama, “Improving Oxygen Evolution Activity and Stability of Nb-doped TiO2 supported RuO2 by SnO2 Interlayer: A Model Catalyst Study on Single Crystal Oxide Heterostructures”, ACS Catalysis, 13, 2023, 11433-11440. https://doi.org/10.1021/acscatal.3c01525.
  • Y. Chida, T. Tomimori, T. Ebata, N. Taguchi, T. Ioroi, K. Hayashi, N. Todoroki and T. Wadayama, “Experimental study platform for electrocatalysis of atomic-level controlled high-entropy alloy surfaces”, Nature Communications, 14, 2023, 4492. https://doi.org/10.1038/s41467-023-40246-5
  • N. Todoroki, M. Ishijima, J. L. C. Huaman, Y. Tanaka and J. Balachandran, “Composition Sensitive Selectivity and Activity of Electrochemical Carbon Dioxide Reduction on Pd‐Cu Solid‐Solution Alloy Nanoparticles”, Catalysis Science & Technology, 13, 2023, 5025-5032. https://doi.org/10.1039/D3CY00748K.
  • N. Todoroki, K. Nagasawa, H. Enjoji, S. Mitsushima, “Suppression of Catalyst Layer Detachment by Interfacial Microstructural Modulation of NiCo2O4/Ni Oxygen Evolution Electrode for Renewable Energy-Powered Alkaline Water Electrolysis”, ACS Applied Materials & Interfaces, 15, 2023, 24399-24407. https://doi.org/10.1021/acsami.3c01572.
  • S. Yoshida, M. Sampei, N. Todoroki, E. Hisamura, K. Nakao, K. Albrecht, T. Wadayama, “Surface Modification of Gold by Carbazole Dendrimers for Improved Carbon Dioxide Electroreduction”, Chemical Communications, 59, 2023, 3459-3462. https://doi.org/10.1039/D3CC00350G.
  • K. Hayashi, T. Tomimori, R. Sato, N. Todoroki, T. Wadayama, “Enhanced electrochemical hydrogen oxidation reaction and suppressed hydrogen peroxide generation properties on Pt/Ir(111) bimetallic surfaces”, Physical Chemistry Chemical Physics, 25, 2023, 2770-2775. https://doi.org/10.1039/D2CP05430B
  • N. Todoroki, T. Wadayama, “Stainless Steel Anode for Alkaline Water Electrolysis: Recent Progress in Active and Durable Surface Catalyst Layer Generation”, Materials Transactions, 64, 2023, 2376-2385. https://doi.org/10.2320/matertrans.MT-MH2022002
  • H. Kojima, K. Nagasawa, N. Todoroki, Y. Ito, T. Matsui, R. Nakajima, “Influence of renewable energy power fluctuations on water electrolysis for green hydrogen production”, International Journal of Hydrogen Energy, 48, 2023, 4572-4593. https://doi.org/10.1016/j.ijhydene.2022.11.018
解説記事
  • 轟直人, “アルカリ水電解用酸素発生電極への応用に向けたステンレス鋼上への水酸化物ナノ構造触媒の生成”, 日本化学会研究会 「低次元系光機能材料研究会」ニュースレター, 28, 2023, 11-12.
  • 轟直人, “ステンレス鋼上へのナノ構造触媒層の形成とアルカリ水電解用酸素発生電極への応用”, まてりあ, 62, 2023, 368-374.
書籍
  • 小島 宏一, 長澤 兼作, 轟 直人, 伊藤 良一, 松井 敏明, 中島 良 , 「グリーン水素製造に向けた水電解および周辺技術」, 第３章第３節「再生可能エネルギーによる電力の変動挙動と水電解への影響」, 情報機構

2022
原著論文： Research papers
  • N. Todoroki, H. Tsurumaki, A. Shinomiya, T. Wadayama, “Surface Microstructures and Oxygen Evolution Properties of Cobalt Oxide Deposited on Ir(111) and Pt(111) Single Crystal Substrates”, Electrochemical Science Advances, 2022. https://doi.org/10.1002/elsa.202200007
  • N. Todoroki, T. Wadayama, “Dissolution of constituent elements from various austenitic stainless steel oxygen evolution electrodes under potential cycle loadings”, International Journal of Hydrogen Energy, 47, 2022, 32753-32762. https://doi.org/10.1016/j.ijhydene.2022.07.175
  • K. Hayashi, K. Kusunoki, T. Tomimori, R. Sato, N. Todoroki, T. Wadayama, “Hydrogen Peroxide Generation and Hydrogen Oxidation Reactions of Vacuum-prepared Ru/Ir(111) Bimetallic Surfaces”, Physical Chemistry Chemical Physics, 24, 2022, 14277-14283. 2022 PCCP HOT Articles https://doi.org/10.1039/D2CP01261H
  • K. Iwase, T. Kojima, N. Todoroki, I. Honma, “Activity switching of Sn and In species in Heusler alloys for electrochemical CO2 reduction”, Chemical Communications, 58, 2022, 4685-4868. https://doi.org/10.1039/D2CC00754A
  • N. Todoroki, A. Shinomiya, T. Wadayama, “Nanostructures and Oxygen Evolution Overpotentials of Surface Catalyst Layers Synthesized on Various Austenitic Stainless Steel Electrodes”, Electrocatalysis, 13, 2022, 116–125. https://doi.org/10.1007/s12678-022-00705-x
  • B. Hu, B. Bharate, J. D. Jimenez, J. Lauterbach, N. Todoroki, T. Wadayama, K. Higashi, T. Uruga, Y. Iwasawa, H. A.-Miwa, S. Takakusagi, K. Asakura, “Abnormal Metal Bond Distances in PtAu Alloy Nanoparticles: In Situ Back-Illumination XAFS Investigations of the Structure of PtAu Nanoparticles on a Flat HOPG Substrate Prepared by Arc Plasma Deposition”, The Journal of Physical Chemistry C, 126, 2022, 1006–1016. https://doi.org/10.1116/6.0001379
  • M. Watanabe, T. Kanauchi, Y. Chida, K. Hayashi, N. Todoroki, T. Wadayama, “Oxygen reduction reaction properties of vacuum-deposited Pt on thermally grown epitaxial graphene layers”, Journal of Vacuum Science & Technology A, 40, 2022, 013216. https://doi.org/10.1116/6.0001379
解説記事
  • 轟直人, “水電解水素製造装置の高効率化に向けたステンレス鋼電極の開発”, 金属, 92, 2022, 51-59.
特許
  • 特願2022-029396, “オゾン発生用電極”，坂田 良真, 和田山 智正, 轟 直人, 石亀 弘基, 松本 聡

2021
原著論文： Research papers
  • K. Hayashi, T. Tomimori, Y. Chida, N. Todoroki, T. Wadayama, “Hydrogen Peroxide Generation and Hydrogen Oxidation Reaction Properties of Ir(111), (100), and (110)-Low-Index Single-Crystal Surfaces”, The Journal of Physical Chemistry C, 125, 2021, 21481-21487. DOI:10.1021/acs.jpcc.1c07322
  • Y. Chida, N. Todoroki, T. Wadayama, “Atomically resolved interface structures of vacuum-deposited Pt on SnO2(110), (101), and (111)”, Journal of Vacuum Science & Technology A, 39, 2021, 060402. DOI:10.1116/6.0001348
  • M. Torihata, M. Nakamura, N. Todoroki, T. Wadayama, N. Hoshi, “Activity for the ORR on Pt-Pd-Co ternary alloy electrodes is markedly affected by surface structure and composition”, Electrochemistry Communications, 125, 2021, 107007. DOI: 10.1016/j.elecom.2021.107007
  • K. Kusunoki, D. Kudo, K. Hayashi, Y. Chida, N. Todoroki, T. Wadayama, “Oxygen Reduction Reaction of Third Element-Modified Pt/Pd(111): Effect of Atomically Controlled Ir Locations on the Activity and Durability”, ACS Catalysis, 11, 2021, 1554-1562. DOI:10.1021/acscatal.0c04054
  • N. Todoroki, T. Wadayama, “Electrochemical Stability of Stainless-Steel-Made Anode for Alkaline Water Electrolysis: Surface Catalyst Nanostructures and Oxygen Evolution Overpotentials Under Applying Potential Cycle Loading”, Electrochemistry Communications, 122, 2021, 106902. DOI: 10.1016/j.elecom.2020.106902

2020
原著論文： Research papers
  • N. Todoroki, S. Takahashi, K. Kawaguchi, Y. Fugane, T. Wadayama, “Dry synthesis of single-nanometer-scale PtSi fine particles for electrocatalysis”, Journal of Electroanalytical Chemistry, 876 (2020) 114492. DOI:10.1016/j.jelechem.2020.114492
  • N. Todoroki, H. Tsurumaki, H. Tei, T. Mochizuki, T. Wadayama, “Online electrochemical mass spectrometry combined with the rotating disk electrode method for direct observations of potential-dependent molecular behaviors in the electrode surface vicinity”, Journal of the Electrochemical Society, 167 (2020) 106503.DOI:10.1149/1945-7111/ab9960
  • F. E. Feiten, S. Takahashi, O. Sekizawa, Y. Wakisaka, T. Sakata, N. Todoroki, T. Uruga, T. Wadayama, Y. Iwasawa, K. Asakura, “Model Building Analysis – a novel method for statistical evaluation of Pt L3-edge EXAFS data to unravel the structure of Pt-alloy nanoparticles for the oxygen reduction reaction on highly oriented pyrolytic graphite”, Physical Chemistry Chemical Physics, 22 (2020) 18815. DOI:10.1039/C9CP06891K (2020 PCCP Hot Article)
解説記事
  • 轟直人, “ドライプロセス法による表面原子構造制御に立脚した燃料電池触媒の開発”, 燃料電池, 20, 2020, 50-56.

2019
原著論文： Research papers
  • N. Todoroki, T. Wadayama, “Hetero-Layered Ni-Fe Hydroxide/Oxide Nanostructures Generated on Stainless-Steel Substrate for Efficient Alkaline Water Splitting”, ACS Applied Materials and Interfaces, 11 (2019) 44161-44169. DOI:10.1021/acsami.9b14213
  • K. Daisuke, S. Kaneko, R. Myochi, Y. Chida, N. Todoroki, T. Tanabe, T. Wadayama, “Ligand-effect-induced Oxygen Reduction Reaction Activity Enhancement for Pt/Zr/Pt(111) Surfaces with Tensile Strain Relieved by Stacking Faults”, ACS Applied Energy Materials, 2 (2019) 4597-4601. DOI:10.1021/acsaem.9b00873
  • N. Todoroki, H. Tei, T. Miyakawa, H. Tsurumaki, T. Wadayama, “Electrochemical CO2 Reduction on Bimetallic Surface Alloys: Enhanced Selectivity to CO for Co/Au(110) and to H2 for Sn/Au(110)”, ChemElectroChem, 6 (2019) 3101-3107. DOI:10.1002/celc.201900725R1
  • S. Takahashi, N. Todoroki, R. Myochi, T. Nagao, N. Taguchi, T. Ioroi, F. E. Feiten, Y. Wakisaka, K. Asakura, O. Sekizawa, T. Sakata, K. Higashi, Y. Iwasawa, T. Wadayama, “Effective Surface Termination with Au on PtCo@Pt Core-Shell Nanoparticle: Microstructural Investigations and Oxygen Reduction Reaction Properties”, Journal of Electroanalytical Chemistry, 842 (2019) 1-7. DOI: 10.1016/j.jelechem.2019.04.053
  • N. Todoroki, R. Sasakawa, K. Kusunoki, T. Wadayama,”Oxygen Reduction Reaction Activity of Nano-Flake Carbon-Deposited Pt75Ni25(111) Surfaces”, Electrocatalysis, 10 (2019) 232-242. DOI: 10.1007/s12678-019-00517-6
  • N. Todoroki, H. Tei, H. Tsurumaki, T.Miyakawa, T. Inoue and T. Wadayama,”Surface Atomic Arrangement Dependence of Electrochemical CO2 Reduction on Gold: Online Electrochemical Mass Spectrometric Study on Low-Index Au(hkl) Surfaces”, ACS Catalysis, 9, 2019, 1383-1388. DOI:10.1021/acscatal.8b04852
解説記事
  • 轟直人,　和田山智正, “よく規定された合金系電極触媒表面モデルのドライプロセス合成と特性評価”, 電気化学, 87 (2019) 250-257. DOI:10.5796/denkikagaku.19-TE0006
  • 轟直人,　”表面科学的視点に基づくエネルギー・物質変換触媒の開発”, まてりあ, 58 (2019) 328-332. DOI: 10.2320/materia.58.328
  • 轟直人,　和田山智正, “東北大学環境材料表面科学研究室－電極触媒モデルのドライプロセス合成と評価－”, 燃料電池, 18 (2019) 82-86. 掲載WEBページ（目次のみ）

2018
原著論文： Research papers
  • 金子聡真, 妙智力也, 渡邉裕文, 番土陽平, 高橋俊太郎, 轟直人, 田邉匡生, 和田山智正,”歪み制御した単結晶Ptシェルの酸素還元反応活性”, 燃料電池, 18, 2018, pp. 73-79. https://www.fcdic.com/pdf/toukouronbun/toukou24.pdf
  • N. Todoroki and T. Wadayama,”Oxygen Reduction Reaction Activity for Cobalt-Deposited Pt(111) Model Catalyst Surfaces in Alkaline Solution”, Electrochemistry, 86, 2018, pp. 243-245. DOI:10.5796/electrochemistry.18-00024
  • N. Todoroki, R. Kawamura, M. Asano, R. Sasakawa, S. Takahashi and T. Wadayama, “Alloy-composition-dependent oxygen reduction reaction activity and electrochemical stability of Pt-based bimetallic systems: a model electrocatalyst study of Pt/PtxNi100−x(111)”, Physical Chemistry Chemical Physics, 20, 2018, pp. 11994-12004. DOI:10.1039/C8CP01217B
  • H. Tsurumaki, T. Mochizuki, H. Tei, N. Todoroki and T. Wadayama,”Rotating Disk Electrode – Online Electrochemical Mass Spectrometry for Oxygen Reduction Reaction on Pt Electrode Surfaces”, ECS Transactions, 86(13), 2018, pp. 447-452.
  • R. Myochi, T. Nagao, Y. Fugane, S. Takahashi, N. Todoroki and T. Wadayama,”Oxygen Reduction Reaction Properties for Dry-Process Synthesized Pt/TaCx Nanoparticles”, ECS Transactions, 86(13), 2018, pp. 519-524.
  • M. Watanabe, J. Moon, T. Tanabe, N. Todoroki and T. Wadayama,”Oxygen Reduction Reaction Properties of Dry-Process-Synthesized Pt/graphene/SiC(0001) Model Catalyst Surfaces”, ECS Transactions, 86(13), 2018, pp. 525-530.
  • N. Todoroki and T. Wadayama,”Oxygen Reduction and Oxygen Evolution Reaction Activity on Co/Pt(111) Surfaces in Alkaline Solution”, ECS Transactions, 86(13), 2018, pp. 569-574.
特許
  • 特願2018-196341, “ナノ粒子およびナノ粒子の製造方法”，高橋俊太郎、轟直人、和田山智正

2017
原著論文： Research papers
  • S. Kaneko, R. Myochi, S. Takahashi, N. Todoroki, T. Wadayama, and T. Tanabe, “Ultrahigh Vacuum Synthesis of Strain-Controlled Model Pt(111)-Shell Layers: Surface Strain and Oxygen Reduction Reaction Activity”, The Journal of Physical Chemistry Letters, 8, 2017, pp. 5360-5365. http://dx.doi.org/10.1021/acs.jpclett.7b02525
  • N. Todoroki, Y. Bando, Y. Tani, S. Kaneko, H. Watanabe, S. Takahashi and T. Wadayama, “Electrochemical Stability of Pt/Pd(111) Model Core-Shell Structure in 80°C Perchloric Acid”, Journal of the Electrochemical Society, 164, 2017, pp. F908-F910. http://jes.ecsdl.org/content/164/9/F908.abstract
特許
  • 特願2017-203904, “ナノ粒子およびナノ粒子の製造方法”，高橋俊太郎、轟直人、和田山智正

2016
  • S. Takahashi, N. Takahashi, N. Todoroki, T. Wadayama, “Dealloying of Nitrogen-Introduced Pt–Co Alloy Nanoparticles: Preferential Core–Shell Formation with Enhanced Activity for Oxygen Reduction Reaction”, ACS Omega, 1, 2016, pp. 1247-1252. http://dx.doi.org/10.1021/acsomega.6b00412
  • N. Todoroki, H. Watanabe, T. Kondo, S. Kaneko, T. Wadayama, “Highly Enhanced Oxygen Reduction Reaction Activity and Electrochemical Stability of Pt/Ir(111) Bimetallic Surfaces”, Electrochimica Acta, 222, 2016, pp. 1616–1621 http://dx.doi.org/10.1016/j.electacta.2016.11.149 .
  • N. Todoroki, Y. Bando, H. Watanabe, Y. Tani, T. Wadayama, “ORR activity and electrochemical stability for well-defined topmost and interface structures of the Pt/Pd(111) bimetallic system”, Electrochimica Acta, 212, 2016, pp. 822-827. http://dx.doi.org/10.1016/j.electacta.2016.07.068 .
  • M. Asano, R. Kawamura, R. Sasakawa, N. Todoroki, T. Wadayama, “Oxygen Reduction Reaction Activity for Strain-Controlled Pt-Based Model Alloy Catalysts: Surface Strains and Direct Electronic Effects Induced by Alloying Elements”, ACS Catalysis, 6, 2016, pp. 5285-5289. http://dx.doi.org/10.1021/acscatal.6b01466
  • N. Todoroki, N. Yokota, S. Nakahata, H. Nakamura, T. Wadayama, “Electrochemical Reduction of CO2 on Ni- and Pt-Epitaxially Grown Cu(111) Surfaces” , Electrocatalysis, 7 (1), 2016, pp. 97-103. DOI:10.1007/s12678-015-0286-6
  • S. Takahashi, N. Takahashi, N. Todoroki, T. Tanabe, T. Wadayama, “Oxygen Reduction Reaction Activity and Durability for Pt/TaNx Model Catalysts Fabricated in Ultra-High-Vacuum” , ECS Transactions, 75 (14), 2016, pp. 821-826.
  • M. Asano, R. Kawamura, N. Todoroki, T. Wadayama, “ORR Properties for Model Pt-Shell Layers Prepared on Nitrogen-Beam Irradiated Pt25Ni75(111) Substrate” , ECS Transactions, 75 (14), 2016, pp. 809-814.
  • N. Todoroki, Y. Bando, Y. Tani, S. Kaneko, H. Watanabe, T. Wadayama, “Surface Structures and Electrochemical Stabilities for Pt/Pd(111) Model Electrocatalysts” , ECS Transactions, 75 (14), 2016, pp. 741-746.
  • H. Nakamura, T. Inoue, T. Matsuda, N. Todoroki, T. Wadayama, “On-Line Mass Spectrometry for Ethanol Oxidation on Well-Defined Sn/Pt(hkl) Electrode Surfaces” , ECS Transactions, 75 (14), 2016, pp. 1029-1033.
  • H. Watanabe, S. Kaneko, N. Todoroki, T. Wadayama, “Oxygen Reduction Reaction Activity and Durability for Model Pt Shell Layers on Ir(111) Prepared by Molecular Beam Epitaxy” , ECS Transactions, 75 (14), 2016, pp. 815-820.

2015
  • M. Asano, R. Kawamura, N. Todoroki, T. Wadayama, “Oxygen reduction reaction activities for various-monolayer-thick Pt shells on PtxNi100-x(111)”,  ECS Transactions, 69 (17), 2015, pp. 619-624.
  • S. Takahashi, H. Chiba, N. Todoroki, T. Wadayama, “Electrochemical structural stability of au-modified Pt nanoparticles prepared by arc-plasma deposition”, ECS Transactions, 69 (17), 2015, pp. 657-661.
  • N. Todoroki, Y. Bando, H. Watanabe, T. Wadayama, “Effects of core-shell interface structures on ORR activities: A model catalyst study of Pt/Pd(111)”, ECS Transactions, 69 (17), 2015, pp. 315-320.
  • S. Takahashi, H. Chiba, T. Kato, S. Endo, T. Hayashi, N. Todoroki, T. Wadayama, “Oxygen reduction reaction activity and structural stability of Pt-Au nanoparticles prepared by arc-plasma deposition”, Physical Chemistry Chemical Physics, 17, 2015, pp. 18638-18644. http://dx.doi.org/10.1039/C5CP02048D
  • N. Todoroki, T. Kato, T. Hayashi, S.Takahashi, T. Wadayama, “Pt–Ni Nanoparticle-Stacking Thin Film: Highly Active Electrocatalysts for Oxygen Reduction Reaction”, ACS catalysis, 5, 2015, pp. 2209-2212. http://dx.doi.org/10.1021/acscatal.5b00065
  • Y. Bando, Y. Takahashi, E. Ueta, N. Todoroki, T. Wadayama, “Electrochemical Properties of Pt Epitaxial Layers Formed on Pd(111) in Ultra-High Vacuum”, Journal of the Electrochemical Society, 162, 2015, pp. F463-F467. DOI:10.1149/2.0951504jes
  • 轟直人, 和田山智正, “超高真空中で作製したPt基合金モデル単結晶触媒の酸素還元反応活性”, Electrochemistry, 83 (2), 2015, pp. 101-105. https://doi.org/10.5796/electrochemistry.83.101

2014
  • N. Todoroki, T. Dasai, Y. Asakimori, T. Wadayama, “Microscopic surface structures and ORR activities for vacuum-deposited Pt/Ni/Pt(1 1 1) and Pt/Ni/Pt(1 1 0) sandwich structures”, Journal of Electroanalytical Chemistry, 724, 2014, pp. 15-20. https://doi.org/10.1016/j.jelechem.2014.04.008
  • N. Todoroki, Y. Iijima, Y. Takahashi, T. Kondo, Y. Asakimori, Y. Bando, T. Wadayama, “Electrochemical Properties for UHV-Prepared Pt/M Well-Defined Single Crystal Surfaces”, ECS Transactions, 64 (3), 2014, pp. 63-74.

2013
  • N. Todoroki, Y. Asakimori, T. Wadayama, “Effective shell layer thickness of platinum for oxygen reduction reaction alloy catalysts” , Physical Chemistry Chemical Physics, 15 (41), 2013, pp. 17771-17774. http://dx.doi.org/10.1039/C3CP53340A
  • N. Todoroki, Y. Iijima, R. Takahashi, Y. Asakimori, T. Wadayama, “Structure and electrochemical stability of Pt-enriched Ni/Pt(111) topmost surface prepared by molecular beam epitaxy”, Journal of the Electrochemical Society, 160 (6), 2013, pp. F591-F596. DOI:10.1149/2.082306jes
  • N. Todoroki, R. Takahashi, Y. Iijima, Y. Yamada, T. Hayashi, T. Wadayama, “Platinum-enriched Ni/Pt(111) surfaces prepared by molecular beam epitaxy: Oxygen reduction reaction activity and stability”, Materials Transactions, 54 (9), 2013, pp. 1735-1740. DOI:10.2320/matertrans.M2013061
  • N. Todoroki, Y. Asakimori, T. Wadayama, “Oxygen reduction reaction activity of Pt/Ni/Pt(111) well-defined model catalyst surfaces”, ECS Transactions, 58 (1), 2013, pp. 565-573.
  • Y. Yamada, K. Miyamoto, T. Hayashi, Y. Iijima, N. Todoroki, T. Wadayama, “Oxygen reduction reaction activities for Pt-enriched Co/Pt(111), Co/Pt(100), and Co/Pt(110) model catalyst surfaces prepared by molecular beam epitaxy”, Surface Science, 607, 2013, pp. 54-60. https://doi.org/10.1016/j.susc.2012.08.016
  • Y. Iijima, T. Takayuki, Y. Takahashi, Y. Bando, N. Todoroki, T. Wadayama, “Oxygen Reduction Reaction Activities for Pt/Au(hkl) Bimetallic Surfaces Prepared by Molecular Beam Epitaxy”, Journal of the Electrochemical Society, 160, 2013, pp. F898-F904. DOI:10.1149/2.011309jes

2012
  • N. Todoroki, Y. Iijima, R. Takahashi, Y. Yamada, K. Matsumoto, T. Hayashi, T. Wadayama, “Electrochemical stability of pt-enriched topmost surface of Ni/Pt(111) prepared by molecular beam epitaxy”, ECS Transactions, 50 (2), 2012, pp. 1707-1713.
  • Y. Iijima, Y. Takahashi, K. Matsumoto, N. Todoroki, T. Wadayama, “ORR activity enhancement of MBE-prepared Pt monolayer on Au single-crystal substrate”, ECS Transactions, 50 (36), 2012, pp. 45-55.
  • Y. Iijima, Y. Takahashi, K.-I. Matsumoto, T. Hayashi, N. Todoroki, T. Wadayama, “Oxygen reduction reaction activities of Pt/Au(1 1 1) surfaces prepared by molecular beam epitaxy”, Journal of Electroanalytical Chemistry, 685, 2012, pp. 79-85. http://dx.doi.org/10.1016/j.jelechem.2012.09.007

2011
  • T. Wadayama, H. Yoshida, K. Ogawa, N. Todoroki, Y. Yamada, K. Miyamoto, Y. Iijima, T. Sugawara, K. Arihara, S. Sugawara, K. Shinohara, “Outermost surface structures and oxygen reduction reaction activities of Co/Pt(111) bimetallic systems fabricated using molecular beam epitaxy”, Journal of Physical Chemistry C, 115 (38), 2011, pp. 18589-18596. http://pubs.acs.org/doi/abs/10.1021/jp203845u

2010
  • T. Wadayama, N. Todoroki, Y. Yamada, T. Sugawara, K. Miyamoto, Y. Iijama, “Oxygen reduction reaction activities of Ni/Pt(111) model catalysts fabricated by molecular beam epitaxy”, Electrochemistry Communications, 12 (8), 2010, pp. 1112-1115. https://doi.org/10.1016/j.elecom.2010.05.042
  • T. Wadayama, H. Yoshida, K. Ogawa, N. Todoroki, Y. Yamada, “Carbon monoxide adsorption on Co deposited Pt(1 0 0)-hex: IRRAS and LEED investigations”, Applied Surface Science, 256 (14), 2010, pp. 4517-4521. https://doi.org/10.1016/j.apsusc.2010.02.039
  • H. Yoshida, K. Ogawa, N. Todoroki, Y. Yamada, “Carbon monoxide adsorption on cobalt-deposited platinum single crystal surfaces investigated by IR reflection-absorption and low-energy electron diffraction”, e-Journal of Surface Science and Nanotechnology, 8, 2010, pp. 161-166. https://doi.org/10.1380/ejssnt.2010.161

2009
  • N. Todoroki, H. Osano, T. Maeyama, H. Yoshida, T. Wadayama, “Infrared reflection absorption spectral study for CO adsorption on Pd/Pt(1 1 1) bimetallic surfaces”, Applied Surface Science, 256 (4), 2009, pp. 943-947. http://dx.doi.org/10.1016/j.apsusc.2009.05.070
  • T. Wadayama, H. Yoshida, N. Todoroki, S. Oda, “IRRAS and TPD investigations of carbon monoxide adsorption on MBE grown Fe on Pt(100)”, e-Journal of Surface Science and Nanotechnology, 7, 2009, pp. 245-248. https://doi.org/10.1380/ejssnt.2009.245
  • T. Wadayama, H. Yoshida, N. Todoroki, S. Oda, “Carbon monoxide adsorption on Ni/Pt(111) surfaces investigated by infrared reflection absorption spectroscopy”, e-Journal of Surface Science and Nanotechnology, 7, 2009, pp. 230-233. https://doi.org/10.1380/ejssnt.2009.230
  • T. Wadayama, H. Yoshida, S. Oda, N. Todoroki, “Infrared reflection absorption study for carbon monoxide adsorption on chromium deposited Cu(100) surfaces”, Materials Transactions, 50 (4), 2009, pp. 819-824. https://doi.org/10.2320/matertrans.MRA2008442