电源技术2024，Vol.48Issue(6)：996-1002,7.DOI:10.3969/j.issn.1002-087X.2024.06.004
直接甲醇燃料电池含氧空穴CaTiO3阴极助催化剂研究
Study on oxygen-containing hole CaTiO3 cathode cocatalyst for direct methanol fuel cells
霍鑫 1秦斌 1孙海2
作者信息
- 1. 中国科学院大连化学物理研究所,辽宁大连 116023||中国科学院大学,北京 100039
- 2. 中国科学院大连化学物理研究所,辽宁大连 116023
- 折叠
摘要
Abstract
As a portable mobile power source,the performance of direct methanol fuel cells(DMFC)under high altitude and low oxygen concentration conditions directly affects its practical application.In order to solve the problem of increasing cathode polarization loss of DMFC under low oxygen con-centration conditions,CaTiO3 cocatalyst was synthesized by hydrothermal template method and doped with commercial Pt/C catalyst in different proportions.The doped catalyst was characterized by XRD,SEM and TEM,and RDE and single cell electrochemical tests were conducted.Compared with the commercial Pt/C catalyst,the half-wave potential of the doped(the ratio of CaTiO3 and Pt/C is 1∶1)catalyst shifts 39 mV.When the oxygen concentration gradually decreases from 100%to 10%,the peak power density of Pt/C membrane electrode decreases by 38.62%,and the peak power den-sity of Pt/C-CTO membrane electrode decreases by 15.03%.At low oxygen concentration of 10%,the peak power density of Pt/C-CTO membrane electrode is 40.54%higher than that of Pt/C membrane electrode.关键词
直接甲醇燃料电池/阴极/催化剂Key words
direct methanol fuel cell/cathode/catalyst分类
信息技术与安全科学引用本文复制引用
霍鑫,秦斌,孙海..直接甲醇燃料电池含氧空穴CaTiO3阴极助催化剂研究[J].电源技术,2024,48(6):996-1002,7.
