Journal
CHEMSUSCHEM
Volume 8, Issue 11, Pages 1850-1855Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201500138
Keywords
carbon; doping; electrodes; hydrogen evolution; nanotubes
Funding
- National Natural Science Foundation of China [21175129]
- National Basic Research Program of China [2011CB935800]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09030104]
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The use of electrocatalysts with low metal content (metal-deficient) or metal free for the hydrogen evolution reaction (HER) can prevent or decrease metal ion release, which reduces environmental impact; development of such catalysts with high activity and durability over the whole pH range is thus highly desired but still remains a huge challenge. Herein, we describe the direct growth of a film consisting of interconnected Co-entrapped, N-doped carbon nanotubes on carbon cloth using chemical vapor deposition from dicyanodiamine using a Co3O4 nanowire array as catalyst. This integrated architecture is used as a flexible 3D electrode for the electrolytic hydrogen evolution with outstanding catalytic activity and durability in acidic media. Moreover, this electrode is also highly efficient under neutral and basic conditions. It offers us an attractive carbon-based metal-deficient HER catalyst outperforming most transition-metal and all metal-free/deficient catalysts.
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