Journal
NANOSCALE
Volume 9, Issue 43, Pages 16674-16679Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nr03515b
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Funding
- Natural Science Foundation of China [51371165, 51571189]
- Anhui Provincial Natural Science Foundation [1508085JGD07]
- Cross-disciplinary Collaborative Teams Program in CAS
- CAS/SAFEA International Partnership Program for Creative Research Teams
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We report the successful synthesis of Mo doped Ni2P nanowires (NWs) on a Ni foam (NF) substrate by a two-step strategy, which could be used as an efficient and stable hydrogen evolution reaction (HER) electrocatalyst over the whole pH range (0-14). Electrochemical investigations demonstrated that Mo doping made the catalytic activity of Ni2P significantly enhanced. To achieve a current density of 10 mA cm(-2), Mo-Ni2P NWs/NF required an overpotential of 67 mV in acidic solution, 78 mV in alkaline solution and 84 mV in neutral solution. It also showed superior stability with negligible activity decay after its use in the HER under different pH conditions for 24 h. Such excellent HER activity might originate from the synergistic effect between molybdenum (Mo) and nickel (Ni) atoms. The present work provides a valuable route for the design and synthesis of inexpensive and efficient all-pH HER electrocatalysts.
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