Journal
ACS APPLIED ENERGY MATERIALS
Volume 3, Issue 2, Pages 1271-1278Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b02097
Keywords
electronic structure; water splitting; phosphides; hydrogen evolution reaction; oxygen evolution reaction
Funding
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Sheikh Saqr Laboratory (SSL)
- Department of Science and Technology, India (DST
- Hydrogen and Fuel Cell-2018 Scheme) [DST/TMD/HFC/2K18/128(G)]
- JNCASR
- Sheikh Saqr Laboratory
- IKST
- DST
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The cornerstone of the emerging hydrogen economy is hydrogen production by water electrolysis with concomitant oxygen generation. Incorporating a third element in metal phosphides can tune the crystalline and electronic structure, hence improving the electrocatalytic properties. In this work, Mn-doped Ni2P with varying ratios of Mn and Ni has been explored as excellent catalysts for water splitting. A complete cell made of the best catalyst Ni1.5Mn0.5P electrodes showed low voltage of 1.75 V at a current density of 10 mA cm(-2) due to enhanced electrical conductivity, induction of tensile stress, enhanced electrochemical surface area, and increased electric dipole upon Mn incorporation.
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