This work was supported by the National Natural Science Foundation of China (No. 21175129) and the National Basic Research Program of China (No. 2011CB935800).
Self-Supported Cu3P Nanowire Arrays as an Integrated High-Performance Three-Dimensional Cathode for Generating Hydrogen from Water†
Article first published online: 15 JUL 2014
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 53, Issue 36, pages 9577–9581, September 1, 2014
How to Cite
Tian, J., Liu, Q., Cheng, N., Asiri, A. M. and Sun, X. (2014), Self-Supported Cu3P Nanowire Arrays as an Integrated High-Performance Three-Dimensional Cathode for Generating Hydrogen from Water. Angew. Chem. Int. Ed., 53: 9577–9581. doi: 10.1002/anie.201403842
- Issue published online: 28 AUG 2014
- Article first published online: 15 JUL 2014
- Manuscript Revised: 22 MAY 2014
- Manuscript Received: 31 MAR 2014
- National Natural Science Foundation of China. Grant Numbers: 21175129, 2011CB935800
- heterogeneous catalysts;
Searching for inexpensive hydrogen evolution reaction (HER) electrocatalysts with high activity has attracted considerable research interest in the past years. Reported herein is the topotactic fabrication of self-supported Cu3P nanowire arrays on commercial porous copper foam (Cu3P NW/CF) from its Cu(OH)2 NW/CF precursor by a low-temperature phosphidation reaction. Remarkably, as an integrated three-dimensional hydrogen-evolving cathode operating in acidic electrolytes, Cu3P NW/CF maintains its activity for at least 25 hours and exhibits an onset overpotential of 62 mV, a Tafel slope of 67 mV dec−1, and a Faradaic efficiency close to 100 %. Catalytic current density can approach 10 mA cm−2 at an overpotential of 143 mV.