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Updated: Jan 21, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
Published on: April 27, 2018
3D β-Ni(OH)2 nanowires/RGO composite prepared by phase transformation method for superior electrochemical performance
Wenxiu He1, Xingsheng Li2, Shengli An3
1School of Chemistry Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, Baotou, 014010, China. nmghwx@sina.com.
Abstract:
In order to improve the capacity and rate performance of nickel-metal hydride (Ni-MH) batteries, we proposed a simple phase transformation method to synthesis 3D β-nickel hydroxide nanowires/reduced graphene oxide (β-Ni(OH)2 NWs/RGO) composite. β-Ni(OH)2 nanowires with diameters of 20-30 nm and lengths up to several micrometers were decorated on RGO layers, forming 3D network structure. The 3D β-Ni(OH)2 NWs/RGO composite displayed a discharge capacity of 343.2 mAh/g at 0.2C, and the capacity values has almost no loss after 100th cycles. When the discharge rate was at 5C, the capacity reached a value of 272.7 mAh/g, and its capacity retention was 79.5%. It showed good capacity and rate performance as a positive material for Ni-MH batteries.
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