Metal Nickel Foam as an Efficient and Stable Electrode for Hydrogen Evolution Reaction in Acidic Electrolyte under Reasonable Overpotentials

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• 作者：Jia Lu ; Tanli Xiong ; Weijia Zhou ; Linjing Yang ; Zhenghua Tang ; Shaowei Chen
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：March 2, 2016
• 年：2016
• 卷：8
• 期：8
• 页码：5065-5069
• 全文大小：339K
• ISSN：1944-8252

文摘

Acidic electrolytes are advantageous for water electrolysis in the production of hydrogen as there is a large supply of H<sup>+sup> ions in the solution. In this study, with the applied overpotential larger than the equilibrium potential of Ni<sup>0sup>/Ni<sup>2+sup>, 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<sup>–2sup> 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.