Composition dependence of the oxygen-evolution reaction rate on IrxTi1-xO2 mixed-oxide electrodes

Kazuki Endo, Yasushi Katayama, Takashi Miura, Tomiya Kishi

研究成果: Article査読

37 被引用数 (Scopus)

抄録

Mudcrack-free oxide films of IrxTi1-xO2 (0 < x ≤ 1) on titanium substrates were obtained, and the effects of the oxide composition on the rate of oxygen-evolution reaction were investigated. At x ≥ 0.6, Ir-rich grains appear on the mudcrack-free surface. In the purely single-phase region (0 < x ≤ 0.5), the pseudo-capacitive charge is proportional to the surface composition, xs, and the exchange-current density for the oxygen-evolution reaction increases linearly with xs at 0.2 ≤ xs ≤ 0.5, with an extrapolated intercept at xs ∼ 0.15, below which the oxides are inactive.

本文言語English
ページ(範囲)173-178
ページ数6
ジャーナルJournal of Applied Electrochemistry
32
2
DOI
出版ステータスPublished - 2002 2月

ASJC Scopus subject areas

  • 化学工学(全般)
  • 電気化学
  • 材料化学

フィンガープリント

「Composition dependence of the oxygen-evolution reaction rate on IrxTi1-xO2 mixed-oxide electrodes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル