Oxygen reduction reaction properties of dry-process-synthesized Pt/graphene/SiC(0001) model catalyst surfaces

M. Watanabe; J. Moon; T. Tanabe; N. Todoroki; T. Wadayama

doi:10.1149/08613.0525ecst

Oxygen reduction reaction properties of dry-process-synthesized Pt/graphene/SiC(0001) model catalyst surfaces

M. Watanabe, J. Moon, T. Tanabe, N. Todoroki, T. Wadayama

Department of Engineering and Design

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We investigated the electrochemical properties of Pt/graphene/SiC(0001) model nanostructures prepared by thermal annealing of the SiC(0001) substrates at 1300-1600 °C in vacuum, followed by the vacuum deposition of Pt. Thermal annealing of the Si-terminated 4H-and 6H-SiC(0001) substrate surfaces generated graphene layers as a result of the sublimation of Si atoms of the substrates: the thickness of the graphene layer depended on the annealing temperatures. For example, annealing of the 4H-and 6H-SiC(0001) substrates at 1600°C generated fewer than ca. 20 monolayers and ca. 40 monolayers of graphene, respectively, as judged by cross-sectional scanning transmission electron microscopy (STEM) images. Then, Pt was deposited on the prepared graphene/SiC(0001) surfaces at room temperature by electron-beam deposition in ultra-high vacuum (~10' Pa). The electrochemical properties of the prepared nanostructures are discussed on the basis of the cyclic voltammetry and linear sweep voltammetry results.

Original language	English
Title of host publication	ECS Transactions
Editors	C. Coutanceau, S. Narayan, Y.-T. Kim, Y. Gochi-Ponce, B.S. Pivovar, T.F. Fuller, R.A. Mantz, P. Shirvanian, D.J. Jones, F. Buechi, V.K. Ramani, J.M. Fenton, K.E. Swider-Lyons, T.J. Schmidt, K.E. Ayers, A.Z. Weber, P.N. Pintauro, P. Strasser, H. Xu, S. Mitsushima, H. Gasteiger, H. Uchida
Publisher	Electrochemical Society Inc.
Pages	525-530
Number of pages	6
Edition	13
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/08613.0525ecst
Publication status	Published - 2018
Event	Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting - Cancun, Mexico Duration: 2018 Sep 30 → 2018 Oct 4

Publication series

Name	ECS Transactions
Number	13
Volume	86
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting
Country	Mexico
City	Cancun
Period	18/9/30 → 18/10/4

ASJC Scopus subject areas

Engineering(all)

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10.1149/08613.0525ecst

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Watanabe, M., Moon, J., Tanabe, T., Todoroki, N., & Wadayama, T. (2018). Oxygen reduction reaction properties of dry-process-synthesized Pt/graphene/SiC(0001) model catalyst surfaces. In C. Coutanceau, S. Narayan, Y-T. Kim, Y. Gochi-Ponce, B. S. Pivovar, T. F. Fuller, R. A. Mantz, P. Shirvanian, D. J. Jones, F. Buechi, V. K. Ramani, J. M. Fenton, K. E. Swider-Lyons, T. J. Schmidt, K. E. Ayers, A. Z. Weber, P. N. Pintauro, P. Strasser, H. Xu, S. Mitsushima, H. Gasteiger, ... H. Uchida (Eds.), ECS Transactions (13 ed., pp. 525-530). (ECS Transactions; Vol. 86, No. 13). Electrochemical Society Inc.. https://doi.org/10.1149/08613.0525ecst

Oxygen reduction reaction properties of dry-process-synthesized Pt/graphene/SiC(0001) model catalyst surfaces. / Watanabe, M.; Moon, J.; Tanabe, T.; Todoroki, N.; Wadayama, T.

ECS Transactions. ed. / C. Coutanceau; S. Narayan; Y.-T. Kim; Y. Gochi-Ponce; B.S. Pivovar; T.F. Fuller; R.A. Mantz; P. Shirvanian; D.J. Jones; F. Buechi; V.K. Ramani; J.M. Fenton; K.E. Swider-Lyons; T.J. Schmidt; K.E. Ayers; A.Z. Weber; P.N. Pintauro; P. Strasser; H. Xu; S. Mitsushima; H. Gasteiger; H. Uchida. 13. ed. Electrochemical Society Inc., 2018. p. 525-530 (ECS Transactions; Vol. 86, No. 13).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Watanabe, M, Moon, J, Tanabe, T, Todoroki, N & Wadayama, T 2018, Oxygen reduction reaction properties of dry-process-synthesized Pt/graphene/SiC(0001) model catalyst surfaces. in C Coutanceau, S Narayan, Y-T Kim, Y Gochi-Ponce, BS Pivovar, TF Fuller, RA Mantz, P Shirvanian, DJ Jones, F Buechi, VK Ramani, JM Fenton, KE Swider-Lyons, TJ Schmidt, KE Ayers, AZ Weber, PN Pintauro, P Strasser, H Xu, S Mitsushima, H Gasteiger & H Uchida (eds), ECS Transactions. 13 edn, ECS Transactions, no. 13, vol. 86, Electrochemical Society Inc., pp. 525-530, Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting, Cancun, Mexico, 18/9/30. https://doi.org/10.1149/08613.0525ecst

Watanabe M, Moon J, Tanabe T, Todoroki N, Wadayama T. Oxygen reduction reaction properties of dry-process-synthesized Pt/graphene/SiC(0001) model catalyst surfaces. In Coutanceau C, Narayan S, Kim Y-T, Gochi-Ponce Y, Pivovar BS, Fuller TF, Mantz RA, Shirvanian P, Jones DJ, Buechi F, Ramani VK, Fenton JM, Swider-Lyons KE, Schmidt TJ, Ayers KE, Weber AZ, Pintauro PN, Strasser P, Xu H, Mitsushima S, Gasteiger H, Uchida H, editors, ECS Transactions. 13 ed. Electrochemical Society Inc. 2018. p. 525-530. (ECS Transactions; 13). https://doi.org/10.1149/08613.0525ecst

Watanabe, M. ; Moon, J. ; Tanabe, T. ; Todoroki, N. ; Wadayama, T. / Oxygen reduction reaction properties of dry-process-synthesized Pt/graphene/SiC(0001) model catalyst surfaces. ECS Transactions. editor / C. Coutanceau ; S. Narayan ; Y.-T. Kim ; Y. Gochi-Ponce ; B.S. Pivovar ; T.F. Fuller ; R.A. Mantz ; P. Shirvanian ; D.J. Jones ; F. Buechi ; V.K. Ramani ; J.M. Fenton ; K.E. Swider-Lyons ; T.J. Schmidt ; K.E. Ayers ; A.Z. Weber ; P.N. Pintauro ; P. Strasser ; H. Xu ; S. Mitsushima ; H. Gasteiger ; H. Uchida. 13. ed. Electrochemical Society Inc., 2018. pp. 525-530 (ECS Transactions; 13).

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abstract = "We investigated the electrochemical properties of Pt/graphene/SiC(0001) model nanostructures prepared by thermal annealing of the SiC(0001) substrates at 1300-1600 °C in vacuum, followed by the vacuum deposition of Pt. Thermal annealing of the Si-terminated 4H-and 6H-SiC(0001) substrate surfaces generated graphene layers as a result of the sublimation of Si atoms of the substrates: the thickness of the graphene layer depended on the annealing temperatures. For example, annealing of the 4H-and 6H-SiC(0001) substrates at 1600°C generated fewer than ca. 20 monolayers and ca. 40 monolayers of graphene, respectively, as judged by cross-sectional scanning transmission electron microscopy (STEM) images. Then, Pt was deposited on the prepared graphene/SiC(0001) surfaces at room temperature by electron-beam deposition in ultra-high vacuum (~10' Pa). The electrochemical properties of the prepared nanostructures are discussed on the basis of the cyclic voltammetry and linear sweep voltammetry results.",

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