| 负载硫化钴纳米颗粒的N、S共掺杂石墨烯氧还原电催化剂的制备及性能 |
| Preparation and Performance of N and S Co-doped Graphene Loaded Cobalt Sulfide Nanoparticles Oxygen Evolution Electrocatalyst |
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| 摘要: 采用D-氨基葡萄糖作为Co分散剂和碳源，硫脲作为氮源和硫源，以NaCl为模板制备负载硫化钴纳米颗粒的N、S共掺杂三维石墨烯氧还原电催化剂（CoS/N/S/rGO）。CoS/N/S/rGO具有良好的氧还原反应（ORR）活性，起始电位和半波电位分别为960和815 mV，性能与商业Pt/C相当。此外，CoS/N/S/rGO表现出明显的4电子转移特性和超低的过氧化氢产率。与基于Pt/C的锌-空气电池相比，基于CoS/N/S/rGO的锌-空气电池在6 mol·L-1 KOH和0.2 mol·L-1 Zn （CH3COO）2碱性电解质中显示出更高的恒电流放电性能以及更好的稳定性。 |
| 关键词: 氧还原反应 模板法 电催化剂 锌-空气电池 |
| 基金项目: 江苏省研究生实践创新计划项目（No.SJCX20-1036）和常州市科技计划应用基础研究项目（No.CJ20190079）资助。 |
| Abstract: The three-dimensional N and S co-doped graphene loaded cobalt sulfide nanoparticles oxygen evolution electrocatalyst (CoS/N/S/rGO) was prepared by using D-glucosamine as the Co dispersant and carbon source, thiourea as the nitrogen source and sulfur source, and NaCl as the template, achieving N and S co-doping and uniformly loading two kinds of nanoparticles Co9S8 and Co4S3. CoS/N/S/rGO had good oxygen reduction reaction (ORR) activity with initial potential of 960 mV and half-wave potential of 815 mV, respectively, which was similar to commercial Pt/C. In addition, CoS/N/S/rGO showed obvious four-electron transfer characteristics and ultra-low hydrogen peroxide production rate. Compared with Pt/C based zinc-air battery, CoS/N/S/rGO based zinc-air battery showed higher constant current discharge performance and better stability in 6 mol·L-1 KOH and 0.2 mol·L-1 Zn(CH3COO)2 alkaline electrolyte. |
| Keywords: oxygen reduction reaction template method electrocatalyst zinc-air battery |
| 投稿时间：2021-04-30 修订日期：2021-08-07 |
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| 赵姣,王志远,贾海浪,陈睿昕,刘蕊.负载硫化钴纳米颗粒的N、S共掺杂石墨烯氧还原电催化剂的制备及性能[J].无机化学学报,2021,37(10):1793-1800. |
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