Electrochemical study of Pd-coated perovskite anodes in sulfur-based hybrid cycle

Hirotaka Kawamura, Song Zhu Chu, Masashi Mori, Shinichi Hashimoto, Masaki Uotani

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Sulfur-based hybrid cycle (SHC) process has been attracted much attention as a mass production process of hydrogen, which consists of an electrolysis step and a thermal decomposition one. To achieve high efficiency for hydrogen evolution, a development of the electrode materials with high corrosion resistance, high electrical conductivity and low anodic potential is a key technology for the electrolysis in H2SO4 solutions. In our previous study, we found that Ti-based pyrochlores and perovskites showed high corrosion resistance in a 50 wt.%H2SO4 solution at the operation temperature and succeeded that the materials had good electrical conductivity up to 1 S/cm by rare earth metal, Nb- or Ta-doping, A-site deficient compositions and the reducing treatment, while maintaining the high corrosion resistance. In this paper, we measured the stability of electrical conductivity for the titanium oxide in the 50 wt.% H2SO4 solution at the operation temperature. Additionally, the application of Pd coating technique on the Tadoped titanium oxide was evaluated using electroless deposition technique, in order to provide some catalytic properties to the materials.

本文言語English
ホスト出版物のタイトル16th World Hydrogen Energy Conference 2006, WHEC 2006
ページ2354-2361
ページ数8
出版ステータスPublished - 2006 12 1
イベント16th World Hydrogen Energy Conference 2006, WHEC 2006 - Lyon, France
継続期間: 2006 6 132006 6 16

出版物シリーズ

名前16th World Hydrogen Energy Conference 2006, WHEC 2006
3

Other

Other16th World Hydrogen Energy Conference 2006, WHEC 2006
国/地域France
CityLyon
Period06/6/1306/6/16

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 燃料技術

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