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| Preparation of Ni-C Powder as Hydrogen Evolution Catalyst by Reduction of Ni2O3 with PE |
| Received:January 03, 2019 Revised:January 04, 2019 |
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| DOI：doi：10.3969/j.issn.1007-7545.2019.05.010 |
| KeyWord:Ni-C powder; electrocatalys; thermal decomposition; polyethylene; Ni2O3 |
| Author | Institution |
| ZHANG Wen-di |
苏州大学 沙钢钢铁学院 |
| LI Tai-lin |
苏州大学 沙钢钢铁学院 |
| YE Lin-hai |
苏州大学 沙钢钢铁学院 |
| HONG Lan |
苏州大学 沙钢钢铁学院 |
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| Abstract: |
| Ni-C powder was prepared by heating homogeneous mixtures of PE and Ni2O3 under Ar atmosphere. Effects of mixing ratio and temperature on formation and properties of Ni-C powder were investigated. Heating process was monitored by thermo-gravimetry coupled with differential scanning calorimeter (TG-DSC). Phase composition and microstructure of Ni-C powder were characterized by XRD and SEM-EDS. Catalytic ability of Ni-C powder for hydrogen evolution reaction (HER) was studied by electrochemical workstation (Parstat 3000A). The results show that Ni-C powders can be fabricated by reduction of Ni2O3 with PE after its melting. Nickel content in solid residue rises with increase of Ni2O3 content in mixtures. Higher temperature favors agglomeration of nickel powders. Ni-C powder obtained from PE/Ni2O3=1/3 at 1 073 K exhibits superior catalytic property to Pt plate. Good stability of catalytic performance remains after 1 000 cycles of cyclic- potential test. |
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