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Surface Modulation of Iron-doped MoS2 Nanosheets by Phytic Acid for Enhanced Water Oxidation |
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| Authors: | Prof Min Zhao Yanhui Song Jingkun Wang Bingwei Wei Chengqiang Wang Wenbo Sha Dr Hailiang Cao Dr Peizhi Liu Dr Xiaoqiang Du Prof Junjie Guo |
| Institution: | 1. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024 P. R. China
These authors contributed equally.;2. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024 P. R. China;3. School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051 P. R. China |
| Abstract: | Surface modulation and heteroatom doping are important approaches for boosting the electrocatalytic performances of MoS2 nanosheets. As a molecular electrocatalyst, the natural organic phytic acid (PA) offer attractive intermediate for oxygen evolution reaction (OER). Here, a surface modulation strategy is demonstrated through the decoration of PA onto the basal plane of iron (Fe)-doped MoS2 nanosheets supported on nickel foam (NF) for boosted OER activity. Experimental results indicate that the PA modification and Fe doping could effectively boost the charge transfer and mass transport during the OER process. Specially, PA2-Fe?MoS2 grown on NF (PA2-Fe?MoS2/NF) exhibits excellent OER activity (218 mV@20 mA cm?2) and durability, even superior to RuO2 and many other previously reported OER catalysts. This natural organic molecule modification provides a facile strategy to designing low-cost and efficient electrocatalytic materials. |
| Keywords: | phytic acid surface modulation heteroatom doping oxygen evolution reaction |