11th Asia Pacific Conference on Plasma Science and Technology;25th Symposium on Plasma Science for Materials | |
Enhancement of electrical conductivity and electrochemical activity of hydrogenated amorphous carbon by incorporating boron atoms | |
Naragino, Hiroshi^1 ; Yoshinaga, Kohsuke^1 ; Nakahara, Akira^1 ; Tanaka, Sakuya^1 ; Honda, Kensuke^1 | |
Graduate School of Science and Engineering, Yamaguchi University, 1677-1, Yoshida, Yamaguchi-shi, Yamaguchi 753-8512, Japan^1 | |
关键词: Electrical conductivity; Electrochemical activities; Electrode material; High resistance; Hydrogen evolution; Hydrogenated amorphous carbon; Volume resistivity; Water electrolysis; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/441/1/012042/pdf DOI : 10.1088/1742-6596/441/1/012042 |
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来源: IOP | |
【 摘 要 】
Conductive boron-doped hydrogenated amorphous carbon (B-DLC) thin films were successfully synthesized with RF plasma-enhanced CVD method. By incorporating boron atoms in amorphous carbon, conduction types were changed from n- to p-type, and volume resistivity was decreased from 30.4 (non-doped) to 6.36 × 10-2Ω cm (B/C 2.500 atom%). B-DLC film with sp2/(sp2+ sp3) carbons of 75 atom% exhibited high resistance to electrochemically-induced corrosion in strong acid solution. Furthermore, it was clarified that boron atoms in DLC could enhance kinetics of hydrogen evolution during water electrolysis at B-DLC surface. B-DLC is, therefore, a promising electrode material for hydrogen production by increasing the concentration of boron atoms in B-DLC and enhancing the reactivity of H2evolution.
【 预 览 】
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Enhancement of electrical conductivity and electrochemical activity of hydrogenated amorphous carbon by incorporating boron atoms | 869KB | download |