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Updated: May 13, 2025
Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
Zr-doped porous Ni2P nanoarray as a highly efficient electrocatalyst for hydrogen evolution reaction in alkaline
Wenjing Tang1, Xuefeng Zhang1, Yingchun Yang1
1College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, Sichuan, People's Republic of China.
Abstract:
The utilization of seawater electrolysis is recognized as a promising method for generating hydrogen as a substitute for conventional technology. Herein, the electrodes were fabricated byin-situgrowth of Zr-Ni2P arrays on a nickel foam substrate (Zr-Ni2P/NF) through a low-temperature hydrothermal and phosphating process. The Zr-Ni2P/NF can achieve efficient hydrogen evolution reaction (HER) performance in alkaline seawater electrolyte. This Zr-Ni2P/NF shows overpotentials as low as 197 and 274 mV at 100 and 500 mA cm-2for HER in alkaline seawater, respectively. Moreover, it exhibits strong stability for at least 50 h of electrolysis at a current density of 500 mA cm-2in alkaline seawater with the overpotential attenuation of 38 mV. The excellent performance and hierarchical structure advantages of Zr-Ni2P/NF provide new ideas for designing efficient seawater splitting electrocatalysts.
