Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7709522 | International Journal of Hydrogen Energy | 2017 | 9 Pages |
Abstract
Three dimensional porous CoP nanosheet arrays grown on nickel foam composite were designed and constructed through a combination of electrodeposition and phosphatization. Nanosheet arrays of cobalt (II) hydroxide were firstly formed on nickel foam via electrodeposition which is further phosphatized to form defect-rich porous CoP nanosheets. The as-prepared CoP nanosheets exhibit high activity as a catalyst for the hydrogen evolution reaction, and the overpotentials of generating a current density of 10Â mAÂ cmâ2 are 79.5Â mV and 86.6Â mV in acidic and basic electrolytes, respectively. In addition, the as-prepared CoP nanosheet catalyst shows excellent stability in acidic electrolyte, and no obvious degradation was observed at 10Â mAÂ cmâ2 for 50Â h. The high activity is attributed to the unique three dimensional structure of the material as well as the metalloid characteristics of CoP.
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Authors
Pan Guo, Yu-Xuan Wu, Woon-Ming Lau, Hao Liu, Li-Min Liu,