- 著者
- Xiao DENG Ryuhei NAKAMURA Kazuhito HASHIMOTO Akihiro OKAMOTO
- 出版者
- 公益社団法人 電気化学会
- 雑誌
- Electrochemistry (ISSN:13443542)
- 巻号頁・発行日
- vol.83, no.7, pp.529-531, 2015-07-05 (Released:2015-07-05)
- 参考文献数
- 12
- 被引用文献数
- 3 40
We report that an intensely iron-corroding microbe, Desulfovibrio ferrophilus strain IS5, is capable of extracting electrons from an indium tin-doped oxide electrode without consuming electrochemically generated hydrogen as an electron carrier. When sulfate was presented as a metabolic electron acceptor, significant cathodic current production was observed at an onset potential of −200 mV vs. SHE, which was approximately 750 mV more positive than the onset for hydrogen evolution in our experimental condition. This finding indicates that hydrogen is not required for the cathodic reaction of IS5, suggesting that IS5 accelerates anaerobic iron corrosion through direct electron uptake.
- 著者
- Xiao Deng M. Liu Hong L. Qin Ling
- 出版者
- 社団法人応用物理学会
- 雑誌
- Japanese journal of applied physics. Pt. 2, Letters (ISSN:00214922)
- 巻号頁・発行日
- vol.38, no.8, pp.L875-L877, 1999-08-01
- 被引用文献数
- 2
The Townsend first ionization coefficient α, electron attachment coefficient η and effective ionization coefficient α^^- (=α-η) in SF_6 and xenon gas mixtures were measured by the steady-state Townsend method for 22.6 ⩽ E/p ⩽ 94 V・mm^<-1>kPa^<-1> and mixture ratios of 10:90, 25:75, 50:50, 75:25 and 90:10. The limiting E/p in SF_6-Xe, (E/p)_<lim>, which represents E/p for α/P=n/P, was derived from the pre-breakdown current growth measurements, which varies approximately linearly with SF_6 concentration in the SF_6-Xe gas mixtures.