Controllable synthesized CoP-MP (M=Fe,Mn) as efficient and stable electrocatalyst for hydrogen evolution reaction at all pH values |
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| Affiliation: | 1. Jiangxi Key Laboratory of Nanomaterials and Sensors, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang, 330022, Jiangxi, PR China;2. Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, PR China;1. School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China;2. Center of Analysis and Test, Jiangsu University, Zhenjiang 212013, PR China;1. Department of Materials Physics and Chemistry, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People''s Republic of China;2. SynCat@Beijing, Synfuels China Technology Co., Ltd, Beijing, 101407, China;3. PetroChina Research Institute of Petroleum Exploration & Development, Langfang, Hebei 065007, China;4. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;1. School of Physics, Chongqing University, Chongqing, 401331, China;2. College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China |
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| Abstract: | The introduction of metal atom or heteroatom into transition metal phosphide is an effective strategy to enhance the electrochemical activity for hydrogen evolution reaction, while the controllable synthesis and purposeful design of efficient and stable transition metal phosphide based electrocatalyst with typical structural morphology is still a big challenge. Here, we investigated the relationship among the variety of the doped metal element (Fe and Mn), the corresponding morphology and electrocatalytic performance of the obtained sample for hydrogen evolution reaction. We found that with the doping of Fe and Mn, the cylinder-like CoP has transformed into microflower-like CoP-FeP and rambutan-like CoP-MnP, respectively. Meanwhile, the obtained CoP-FeP exhibits the excellent electrocatalytic activity hydrogen evolution reaction (HER) over a wide pH range (0–14), followed by CoP-MnP and CoP, resulting from the typical nanostructure and the moderately optimized electronic structure of P and Co center. |
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| Keywords: | Hydrogen evolution reaction Electrocatalyst Cobalt phosphide Electronic structure |
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