Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 8, Pages 5065-5069Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b00233
Keywords
stable electrocatalyst; equilibrium potential; hydrogen evolution reaction; nickel foam; acidic electrolyte
Funding
- National Recruitment Program of Global Experts, Zhujiang New Stars of Science Technology [2014J2200061]
- Project of Public Interest Research and Capacity Building of Guangdong Province [2014A010106005]
- Fundamental Research Funds for the Central Universities [D2153880]
- National Natural Science Foundation of China [51502096]
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Acidic electrolytes are advantageous for water electrolysis in the production of hydrogen as there is a large supply of H+ ions in the solution. In this study, with the applied overpotential larger than the equilibrium potential of Ni-0/Ni2+, Ni foam as HER electrode exhibits excellent and stable HER activity with an onset potential of -84 mV (vs RHE), a high current density of 10 mA cm(-2) at -210 mV (vs RHE), and prominent electrochemical durability (longer than 5 days) in acidic electrolyte. The results presented herein may has potential large-scale application in hydrogen energy production.
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