电源技术2024，Vol.48Issue(5)：922-930,9.DOI:10.3969/j.issn.1002-087X.2024.05.022
CuAg双金属催化剂的性能及在锌空气电池中的应用
Performance of CuAg bimetallic catalyst and its application in Zn-air batteries
摘要
Abstract
CuAg catalyst was synthesized by chemical reduction in two steps.The CuAg catalyst was characterized by SEM,TEM,XRD and XPS,and its electrochemical tests such as CV and LSV were carried out.The results show that the oxygen reduction reaction of CuAg in oxygen-saturated alka-line electrolyte is a 4e-process,and the catalytic activity increases with the increase of Ag content.The catalytic performance was further improved by loading CuAg onto carbon black.The initial po-tential of CuAg/C catalyst is 0.815 V(vs.RHE),and the slope of Tafel is 84.92 mV/(°).When the cata-lyst is applied to zinc-air battery,the battery power density reaches 128.96 mW/cm2,the ultimate dis-charge specific capacity reaches 792 mAh/g.It has long term cycling stability under 5 mA/cm2 charg-ing and discharging cycles.关键词
氧还原反应/CuAg纳米颗粒/负载型催化剂/锌空气电池Key words
oxygen reduction reaction/CuAg nanoparticle/supported catalyst/Zn-air battery分类
信息技术与安全科学引用本文复制引用
李亚,诸葛祥群,贾树勇,罗鲲..CuAg双金属催化剂的性能及在锌空气电池中的应用[J].电源技术,2024,48(5):922-930,9.基金项目
国家自然科学基金(51874051,52111530139) （51874051,52111530139）
