Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 7, Pages 2131-2136Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201410050
Keywords
chemical vapor deposition; graphene; hydrogen evolution reaction; N/S co-doping
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Funding
- JST-CREST (Phase Interface Science for Highly Efficient Energy Utilization)
- World Premier International (WPI) Research Center Initiative for Atoms, Molecules and Materials
- MEXT (Japan)
- National Science Foundation of China
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Chemical doping has been demonstrated to be an effective way to realize new functions of graphene as metal-free catalyst in energy-related electrochemical reactions. Although efficient catalysis for the oxygen reduction reaction (ORR) has been achieved with doped graphene, its performance in the hydrogen evolution reaction (HER) is rather poor. In this study we report that nitrogen and sulfur co-doping leads to high catalytic activity of nanoporous graphene in HER at low operating potential, comparable to the best Pt-free HER catalyst, 2D MoS2. The interplay between the chemical dopants and geometric lattice defects of the nanoporous graphene plays the fundamental role in the superior HER catalysis.
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