抄録
By using electrodeposited Pt nanoparticle electrodes, we clarify the relationship between the amount of dissolved Pt and the change in the electrochemical active surface area (ECA) of Pt due to potential cycling. Cyclic voltammetry of Pt was carried out in the pH range 0.4-4.0 in three different potential windows of 0.0-0.6, 0.0-1.0, and 0.0-1.4 V vs. RHE. The amount of dissolved Pt was almost negligible in the pH 3.0 solution; however, the ECA loss in this solution was almost similar to that observed in the pH 0.4 solution, in which the amount of dissolved Pt was the largest. The ECA loss was high up to the anodic potential limit of 1.0 V and almost remained constant when the potential was increased to the anodic potential limit of 1.4 V.
本文言語 | English |
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ページ(範囲) | C190-C194 |
ジャーナル | Journal of the Electrochemical Society |
巻 | 159 |
号 | 4 |
DOI | |
出版ステータス | Published - 2012 2月 29 |
外部発表 | はい |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 再生可能エネルギー、持続可能性、環境
- 表面、皮膜および薄膜
- 電気化学
- 材料化学