基金supported by the National Natural Science Foundation of China(21006073)the Shanghai Rising-Star Program(11QA1407200)+2 种基金the Shanghai Leading Academic Discipline Project(B303)the Open-Project Program of the State Key Laboratory of Chemical Engineering(SKL-ChE-08C07)the Program of Introducing Talents of Discipline to Universities(B08019)~~
基金supported by the National Natural Science Foundation of China(21006073)Shanghai Rising-Star Program,China(11QA1407200)+1 种基金Shanghai Leading Academic Discipline Project,China(B303)Open-Project Program of the State Key Laboratory of Chemical Engineering,China(SKL-ChE-08C07)~~
基金National Natural Science Fundation of China(21006073)Shanghai Rising-Star Program(11QA1407200)+1 种基金open-project program of the State Key Laboratory of Chemical Engineering(SKL-ChE-08C07)Shanghai Leading Academic Discipline Project(B303)~~
文摘利用催化气相化学沉积(Catalytic chemical vapor deposition,CCVD)法在炭纸上原位生长得到CNF/CP复合体,并对这种复合体的物理化学性能和氧气电催化还原反应(Oxygen reduction reaction,ORR)性能进行了研究。结果表明:纳米炭纤维较为均匀地分散在炭纸上,其中纳米炭纤维具有窄的直径分布。所制CNF/CP复合体具有较大的比表面积和独特的中孔结构;相对于炭纸,CNF/CP复合体的端面碳原子和基面碳原子比例较高。另外,CNF/CP还具有较高的ORR反应活性,其ORR为2电子反应过程,原因可以归结于纳米炭纤维独特的微结构。同时,CNF/CP也具有较高的交换电流密度和较正的平衡电压。