Dissolution of platinum single crystal surfaces under potential cycling in sulfuric acid solution

Yu Sugawara; Mayu Sasaki; Izumi Muto; Nobuyoshi Hara

doi:10.1149/06403.0081ecst

Dissolution of platinum single crystal surfaces under potential cycling in sulfuric acid solution

Yu Sugawara, Mayu Sasaki, Izumi Muto, Nobuyoshi Hara

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

4 Citations (Scopus)

Abstract

The dissolution of Pt(100), Pt(110), and Pt(111) single crystal surfaces under potential cycling conditions in 0.5 M H₂SO₄ solution was investigated by electrochemical measurements, ICPMS analyses, and EC-STM observations. Pt(111) surface had higher corrosion resistance than Pt(100) and Pt(110) during potential cycles in 0.5 M H₂SO₄ solution, and hardly dissolved in the potential range below 1.2 V. EC-STM observations revealed the step structures became straight in the Pt(100) surface and the roughness in Pt(111) terraces gradually increases by the potential cycling in the range of 0.5 - 1.4 V. The formation of Pt islands with a higher surface energy by the potential cycling brought the increase of Pt dissolution rate in the Pt(111) surface with the number of cycle.

Original language	English
Title of host publication	Polymer Electrolyte Fuel Cells 14
Editors	K. Shinohara, S. R. Narayanan, K. Swider-Lyons, A. Weber, C. Coutanceau, R. Mantz, H. A. Gasteiger, D. Jones, M. Edmundson, S. Mitsushima, V. Ramani, Y. Meas, T. Fuller, H. Uchida, F. N. Buchi, K. A. Perry, T. J. Schmidt, J. M. Fenton, P. Strasser
Publisher	Electrochemical Society Inc.
Pages	81-87
Number of pages	7
Edition	3
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/06403.0081ecst
Publication status	Published - 2014 Jan 1
Event	14th Polymer Electrolyte Fuel Cell Symposium, PEFC 2014 - 226th ECS Meeting - Cancun, Mexico Duration: 2014 Oct 5 → 2014 Oct 9

Publication series

Name	ECS Transactions
Number	3
Volume	64
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	14th Polymer Electrolyte Fuel Cell Symposium, PEFC 2014 - 226th ECS Meeting
Country	Mexico
City	Cancun
Period	14/10/5 → 14/10/9

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1149/06403.0081ecst

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Sugawara, Y., Sasaki, M., Muto, I., & Hara, N. (2014). Dissolution of platinum single crystal surfaces under potential cycling in sulfuric acid solution. In K. Shinohara, S. R. Narayanan, K. Swider-Lyons, A. Weber, C. Coutanceau, R. Mantz, H. A. Gasteiger, D. Jones, M. Edmundson, S. Mitsushima, V. Ramani, Y. Meas, T. Fuller, H. Uchida, F. N. Buchi, K. A. Perry, T. J. Schmidt, J. M. Fenton, & P. Strasser (Eds.), Polymer Electrolyte Fuel Cells 14 (3 ed., pp. 81-87). (ECS Transactions; Vol. 64, No. 3). Electrochemical Society Inc.. https://doi.org/10.1149/06403.0081ecst

Dissolution of platinum single crystal surfaces under potential cycling in sulfuric acid solution. / Sugawara, Yu; Sasaki, Mayu; Muto, Izumi ; Hara, Nobuyoshi.

Polymer Electrolyte Fuel Cells 14. ed. / K. Shinohara; S. R. Narayanan; K. Swider-Lyons; A. Weber; C. Coutanceau; R. Mantz; H. A. Gasteiger; D. Jones; M. Edmundson; S. Mitsushima; V. Ramani; Y. Meas; T. Fuller; H. Uchida; F. N. Buchi; K. A. Perry; T. J. Schmidt; J. M. Fenton; P. Strasser. 3. ed. Electrochemical Society Inc., 2014. p. 81-87 (ECS Transactions; Vol. 64, No. 3).

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

Sugawara, Y, Sasaki, M, Muto, I & Hara, N 2014, Dissolution of platinum single crystal surfaces under potential cycling in sulfuric acid solution. in K Shinohara, SR Narayanan, K Swider-Lyons, A Weber, C Coutanceau, R Mantz, HA Gasteiger, D Jones, M Edmundson, S Mitsushima, V Ramani, Y Meas, T Fuller, H Uchida, FN Buchi, KA Perry, TJ Schmidt, JM Fenton & P Strasser (eds), Polymer Electrolyte Fuel Cells 14. 3 edn, ECS Transactions, no. 3, vol. 64, Electrochemical Society Inc., pp. 81-87, 14th Polymer Electrolyte Fuel Cell Symposium, PEFC 2014 - 226th ECS Meeting, Cancun, Mexico, 14/10/5. https://doi.org/10.1149/06403.0081ecst

Sugawara Y, Sasaki M, Muto I , Hara N. Dissolution of platinum single crystal surfaces under potential cycling in sulfuric acid solution. In Shinohara K, Narayanan SR, Swider-Lyons K, Weber A, Coutanceau C, Mantz R, Gasteiger HA, Jones D, Edmundson M, Mitsushima S, Ramani V, Meas Y, Fuller T, Uchida H, Buchi FN, Perry KA, Schmidt TJ, Fenton JM, Strasser P, editors, Polymer Electrolyte Fuel Cells 14. 3 ed. Electrochemical Society Inc. 2014. p. 81-87. (ECS Transactions; 3). https://doi.org/10.1149/06403.0081ecst

Sugawara, Yu ; Sasaki, Mayu ; Muto, Izumi ; Hara, Nobuyoshi. / Dissolution of platinum single crystal surfaces under potential cycling in sulfuric acid solution. Polymer Electrolyte Fuel Cells 14. editor / K. Shinohara ; S. R. Narayanan ; K. Swider-Lyons ; A. Weber ; C. Coutanceau ; R. Mantz ; H. A. Gasteiger ; D. Jones ; M. Edmundson ; S. Mitsushima ; V. Ramani ; Y. Meas ; T. Fuller ; H. Uchida ; F. N. Buchi ; K. A. Perry ; T. J. Schmidt ; J. M. Fenton ; P. Strasser. 3. ed. Electrochemical Society Inc., 2014. pp. 81-87 (ECS Transactions; 3).

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abstract = "The dissolution of Pt(100), Pt(110), and Pt(111) single crystal surfaces under potential cycling conditions in 0.5 M H2SO4 solution was investigated by electrochemical measurements, ICPMS analyses, and EC-STM observations. Pt(111) surface had higher corrosion resistance than Pt(100) and Pt(110) during potential cycles in 0.5 M H2SO4 solution, and hardly dissolved in the potential range below 1.2 V. EC-STM observations revealed the step structures became straight in the Pt(100) surface and the roughness in Pt(111) terraces gradually increases by the potential cycling in the range of 0.5 - 1.4 V. The formation of Pt islands with a higher surface energy by the potential cycling brought the increase of Pt dissolution rate in the Pt(111) surface with the number of cycle.",

author = "Yu Sugawara and Mayu Sasaki and Izumi Muto and Nobuyoshi Hara",

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N2 - The dissolution of Pt(100), Pt(110), and Pt(111) single crystal surfaces under potential cycling conditions in 0.5 M H2SO4 solution was investigated by electrochemical measurements, ICPMS analyses, and EC-STM observations. Pt(111) surface had higher corrosion resistance than Pt(100) and Pt(110) during potential cycles in 0.5 M H2SO4 solution, and hardly dissolved in the potential range below 1.2 V. EC-STM observations revealed the step structures became straight in the Pt(100) surface and the roughness in Pt(111) terraces gradually increases by the potential cycling in the range of 0.5 - 1.4 V. The formation of Pt islands with a higher surface energy by the potential cycling brought the increase of Pt dissolution rate in the Pt(111) surface with the number of cycle.

AB - The dissolution of Pt(100), Pt(110), and Pt(111) single crystal surfaces under potential cycling conditions in 0.5 M H2SO4 solution was investigated by electrochemical measurements, ICPMS analyses, and EC-STM observations. Pt(111) surface had higher corrosion resistance than Pt(100) and Pt(110) during potential cycles in 0.5 M H2SO4 solution, and hardly dissolved in the potential range below 1.2 V. EC-STM observations revealed the step structures became straight in the Pt(100) surface and the roughness in Pt(111) terraces gradually increases by the potential cycling in the range of 0.5 - 1.4 V. The formation of Pt islands with a higher surface energy by the potential cycling brought the increase of Pt dissolution rate in the Pt(111) surface with the number of cycle.

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