Platinum dissolution in nitrogen oxides-containing HClO4 solution studied by electrochemical quartz crystal microbalance

H. Kuroe, T. Morita, Y. Uchiyama, T. Abe, S. Imabayashi

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

Platinum (Pt) dissolution has been elucidated by measuring a mass loss of Pt black-deposited Au quartz resonators in 0.1 mol dm-3 HClO 4 containing NaNO2. A continuous weight loss of ca. 50 ng cm-2 cycle-1 was detected at [NaNO2] = 0.01 mol dm-3 under the potential cycling between 0.6 and 1.4 V vs. RHE. The magnitude of Pt dissolution depends on the concentration of NaNO2 and the range of potential cycling. The average mass loss decreases to 5∼10 ng cm-2 cycle-1 at [NaNO2] = 1 mmol dm -3. The Pt dissolution occurs when the higher potential limit is more than 1.0 V vs. RHE and the lower potential limit is less than 0.9 V vs. RHE, suggesting that the reduction of Pt oxide in the presence of NaNO2 in the bulk solution contributes to the dissolution.

元の言語English
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 12, PEFC 2012
ページ1607-1612
ページ数6
エディション2
DOI
出版物ステータスPublished - 2012 12 1
イベント12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, United States
継続期間: 2012 10 72012 10 12

出版物シリーズ

名前ECS Transactions
番号2
50
ISSN(印刷物)1938-5862
ISSN(電子版)1938-6737

Conference

Conference12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
United States
Honolulu, HI
期間12/10/712/10/12

    フィンガープリント

ASJC Scopus subject areas

  • Engineering(all)

これを引用

Kuroe, H., Morita, T., Uchiyama, Y., Abe, T., & Imabayashi, S. (2012). Platinum dissolution in nitrogen oxides-containing HClO4 solution studied by electrochemical quartz crystal microbalance. : Polymer Electrolyte Fuel Cells 12, PEFC 2012 (2 版, pp. 1607-1612). (ECS Transactions; 巻数 50, 番号 2). https://doi.org/10.1149/05002.1607ecst