化工进展2024，Vol.43Issue(6)：3080-3092,13.DOI:10.16085/j.issn.1000-6613.2023-0729
不同气氛热处理对连续管道微波技术制备Pt/C催化剂氧还原性能的影响
Effect of different atmosphere heat treatment on the oxygen reduction performance of Pt/C catalysts prepared by continuous pipeline microwave technology
摘要
Abstract
Vehicle proton-exchange membrane fuel cell is an important energy conversion device to solve the energy crisis and environmental degradation issues.However,the high cost and slow cathodic oxygen reduction reaction kinetics and poor stability of cathode catalyst in long-term operation have become the main challenges in its development.As such,a continuous pipeline microwave preparation technology was used to prepare a catalyst with 50%(mass)platinum loading.The Pt/C catalyst was annealed in two different atmospheres,namely,nitrogen hydrogen mixture(20%H2)and air.The effect of heat treatment in the two atmospheres on the oxygen reduction performance were studied through characterization and testing.The Pt/C-300(20%H2)catalyst can still maintain a high activity of 71.4 m2/g and 243mA/mg after 30000 cycles of attenuation testing,achieving both high activity and high durability.This work provides an effective and feasible way for the production of catalysts with high oxygen reduction performance.关键词
燃料电池/催化剂/热处理/衰减试验/氧还原性能Key words
fuel cells/catalyst/heat treatment/attenuation test/oxygen reduction performance分类
信息技术与安全科学引用本文复制引用
冯占雄,张创,刘德政,汪云,马强,王诚..不同气氛热处理对连续管道微波技术制备Pt/C催化剂氧还原性能的影响[J].化工进展,2024,43(6):3080-3092,13.基金项目
国家重点研发计划(2021YFB3800400,2022YFE0207600) （2021YFB3800400,2022YFE0207600）
"新能源汽车与智慧交通"湖北省优势特色学科群(TSXKQ003). （TSXKQ003）
