Increase in adsorptivity of sulfonate anions on Pt (111) surface with drying of ionomer
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- 作者：Kensaku Kodama ; Ryosuke Jinnouchi ; Takahisa Suzuki ; Hajime Murata ; Tatsuya Hatanaka ; Yu Morimoto
- 关键词：Pt (111) single crystal ; Solid-state electrochemical cell ; Ionomer ; Sulfonate anion adsorption ; Dry condition
- 刊名：Electrochemistry Communications
- 出版年：November, 2013
- 年：2013
- 卷：36
- 期：Complete
- 页码：26-28
- 全文大小：492 K
文摘
The interface between Nafion and Pt (111) was analyzed in a solid-state electrochemical cell to clarify the catalyst poisoning property of the ionomer in various hydration states. With dehydration of the ionomer, peaks for adsorption and desorption of the sulfonate anions in the cyclic voltammogram showed significant shifts to lower potentials, which indicate increase in the anion adsorptivity.