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
作者单位E-mail
赵姣 江苏理工学院化学与环境工程学院, 常州 213001  
王志远 中国人民解放军陆军炮兵防空兵学院, 合肥 230031  
贾海浪 江苏理工学院化学与环境工程学院, 常州 213001 jiahailang85@126.com 
陈睿昕 江苏理工学院化学与环境工程学院, 常州 213001  
刘蕊 江苏理工学院化学与环境工程学院, 常州 213001  
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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