One-step synthesis of unique catalyst Ni9S8@C for excellent MOR performances |
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| Affiliation: | 1. School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, PR China;2. School of Metallurgical Engineering, Anhui University of Technology, Maanshan 243002, Anhui, China;3. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China;4. Department of Earth Sciences, University of Sargodha, Sargodha 40100, Pakistan;5. Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan;6. College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;7. Department of Physics, Abdul Wali Khan University, Mardan, 23200, KP, Pakistan;8. State Key Laboratory of Microbial Metabolism, School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China;1. Department of Physics, Jinan University, Guangzhou 510632, China;2. Department of Physics, COMSATS University Islamabad, Lahore Campus, Punjab, Lahore 54000, Pakistan;3. Department of Chemistry, Govt College University Faisalabad, Punjab 38000, Pakistan;4. School of Electric Power, South China University of Technology, Guangzhou 510640, China;5. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;6. School of Materials & Mineral Resources, Xian University of Architecture and Technology, Xian 710055, China;7. College of Aerospace Engineering, Chongqing University, Chongqing 400044, China;1. College of Textile Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China;2. Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China;3. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China;4. College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, PR China;5. School of Mechanical and Power Engineering, Dalian Ocean University, Dalian 116023, PR China;1. College of Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 210017, China;2. Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China;1. Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China;2. National-municipal Joint Engineering Laboratory for Chemical Process Intensification and Reaction, Chongqing 400044, China;3. Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Normal University, Guiyang 550018, China;4. School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China;5. State Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi, Guizhou 563003, China;1. Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China;2. Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China |
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| Abstract: | A novel Ni9S8/C electrocatalyst for methanol oxidation reaction (MOR) is synthesized by a simple, cost-effective and one-pot strategy. The electrocatalyst Ni9S8 composed of micro and nanoparticles encapsulated inside carbon layers serves as carbon-supporter and fast ion and electron mobilization through the Ni9S8/C support materials. The sizes of Ni9S8/C nanoparticles range from 2.4 to 7.99 nm, reveals large surface area availability with plenty of active sites for electro-oxidation of methanol. The oxidation performance of electrocatalyst is determined in different solution of methanol and alcohol at various scan rates. At a scan rate of 50 mV s−1, the Ni9S8/C catalyst delivers total 52 mA cm−2 current density for 1.75 V potential (vs RHE) for 1 M KOH and 0.5 M methanol. The electrocatalyst shows low Rct circle and linear chronoamperometric graph for 5000 s, which demonstrate the outstanding stability of the electrocatalyst for methanol electro-oxidation reaction. |
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| Keywords: | One-pot synthesis Electrocatalyst MOR Outstanding stability |
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