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Published on: August 23, 2012
Ultralow platinum-doped self-supported CoPt alloy nanosheets for efficient overall water splitting
Yatao Yan1,2, Zhi-An Ye3, Yongjian Xu1
1School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China. jjj@yzu.edu.cn.
Abstract:
In this study, CoPt alloy nanosheets (CoPt-R10) were in situ constructed on titanium mesh using electrodeposition and mild reduction methods. CoPt-R10 incorporates ultra-low amounts of Pt (0.42 at%) to modulate the electronic structure of Co, requiring low overpotentials of 210 and 314 mV to achieve 200 mA cm-2 for HER and OER, respectively. CoPt-R10 serves as a bifunctional catalyst for overall water splitting, demonstrating stable operation for 500 hours at 100 mA cm-2.
