Molecular simulation of proton conductivity in nafion membrane contaminated with ferrous ion

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

We have performed a numerical analysis of the effect of ferrous ion contamination on proton transport property and nanostructure of solvent molecules in hydrated Nafion using molecular dynamics simulation. In the case of hydration level 3, our results suggest that ferrous ion contamination has an influence of either enhancing or inhibiting of proton transport depending on the amount of contaminated ferrous ions. The ferrous ion has two coordinate sulfonate groups. Structural changes of Nafion membrane were observed with increasing contaminated ferrous ions. In the case of hydration level 9, the correlation between the trend of diffusion coefficient of hydronium ions and the results of structural analysis was not observed. In the case of large amount contaminated condition, the number of coordinated ferrous ions around sulfonate groups was saturated and the majority of contaminated ferrous ions does not exist in first solvation shell.

本文言語English
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 15, PEFC 15
編集者H. A. Gasteiger, A. Z. Weber, V. K. Ramani, T. F. Fuller, R. A. Mantz, H. Uchida, F. N. Buchi, M. Edmundson, C. Coutanceau, J. M. Fenton, S. Mitsushima, T. J. Schmidt, K. Shinohara, K. Swider-Lyons, D. J. Jones, B. S. Pivovar, K. E. Ayers, K. A. Perry, S. R. Narayanan, P. Strasser
出版社Electrochemical Society Inc.
ページ579-586
ページ数8
17
ISBN(電子版)9781607685395
DOI
出版ステータスPublished - 2015
イベントSymposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting - Phoenix, United States
継続期間: 2015 10月 112015 10月 15

出版物シリーズ

名前ECS Transactions
番号17
69
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

Other

OtherSymposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting
国/地域United States
CityPhoenix
Period15/10/1115/10/15

ASJC Scopus subject areas

  • 工学(全般)

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