Hydrogen Evolution Characteristics of Sputter-Deposited Co–Mo, Co–Al and Co–Mo–Al Alloy Electrodes in NaOH Solution
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- Aihara Toshio
- Institute for Materials Research, Tohoku University
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- Kawashima Asahi
- Institute for Materials Research, Tohoku University
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- Akiyama Eiji
- Institute for Materials Research, Tohoku University
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- Habazaki Hiroki
- Institute for Materials Research, Tohoku University
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- Asami Katsuhiko
- Institute for Materials Research, Tohoku University
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- Hashimoto Koji
- Institute for Materials Research, Tohoku University
Bibliographic Information
- Other Title
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- Hydrogen Evolution Characteristics of S
- Hydrogen Evolution Characteristics of Sputter-Deposited Co–Mo, Co–Al and Co–Mo–Al Alloy Electrodes in NaOH Solution
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Abstract
Binary Co–Mo and Co–Al, and ternary Co–Mo–Al alloy electrodes for hydrogen evolution were prepared by using sputter deposition on a nickel substrate with good adhesion. The hydrogen evolution reaction (HER) of these alloy electrodes in the deaerated 1 kmol·m−3 NaOH at 303 K is enhanced significantly compared with pure cobalt electrode. The effective surface area of these alloy electrodes estimated from ac impedance technique is largely increased by leaching of aluminum into alkaline solution. The electrocatalytic activity sequence is Co–Mo–Al>Co–Mo>Co–Al. The maximum activity is obtained for Co–10Mo–58Al alloy with a hydrogen overpotential as low as 110 mV at 103 A·m−2. The enhancement of HER is attributed to both the synergistic effect of alloy constituents and the large effective surface area.
Journal
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- Materials Transactions, JIM
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Materials Transactions, JIM 39 (10), 1017-1023, 1998
The Japan Institute of Metals
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Details 詳細情報について
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- CRID
- 1390001204248052224
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- NII Article ID
- 10003804267
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- NII Book ID
- AA10699969
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- COI
- 1:CAS:528:DyaK1MXnsFyr
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- ISSN
- 2432471X
- 09161821
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- NDL BIB ID
- 4587174
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed