Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 50, Pages 13934-13939Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201409080
Keywords
carbon; electrocatalysis; graphene; hydrogen evolution; nanoribbons
Categories
Funding
- 973 program of China [2011CB013000]
- NSFC [21325415, 21174019, 51161120361]
- Fok Ying Tong Education Foundation [131043]
- 111 Project [807012]
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The development of new promising metal-free catalysts is of great significance for the electrocatalytic hydrogen evolution reaction (HER). Herein, a rationally assembled three-dimensional (3D) architecture of 1D graphitic carbon nitride (g-C3N4) nanoribbons with 2D graphene sheets has been developed by a one-step hydrothermal method. Because of the multipathway of charge and mass transport, the hierarchically structured g-C3N4 nanoribbon-graphene hybrids lead to a high electrocatalytic ability for HER with a Tafel slope of 54mVdecade(-1), a low onset overpotential of 80mV and overpotential of 207mV to approach a current of 10mAcm(-2), superior to those non-metal materials and well-developed metallic catalysts reported previously. This work presents a great advance for designing and developing highly efficient metal-free catalyst for hydrogen evolution.
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