|
|||||
|
|
| 炭纸上原位生长CNF/CP复合体的氧气电催化反应性能 | |
| 引用本文： | 郑俊生,王喜照,符蓉,李平,杨代军,吕洪,马建新. 炭纸上原位生长CNF/CP复合体的氧气电催化反应性能[J]. 新型炭材料, 2011, 26(4). DOI: 10.1016/S1872-5805(11)60081-4 |
| 作者姓名： | 郑俊生 王喜照 符蓉 李平 杨代军 吕洪 马建新 |
| 作者单位： | 1. 同济大学新能源汽车工程中心,上海201804;同济大学汽车学院,上海201804 2. 同济大学新能源汽车工程中心,上海201804;华东理工大学资源与环境学院,上海200439 3. 华东理工大学化学工程联合国家重点实验室,上海,200439 |
| 基金项目： | National Natural Science Fundation of China(21006073); Shanghai Rising-Star Program(11QA1407200); open-project program of the State Key Laboratory of Chemical Engineering(SKL-ChE-08C07); Shanghai Leading Academic Discipline Project(B303)~~ |
| 摘 要： | 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. |
| 关 键 词： | 纳米炭纤维 CNF/CP复合体 催化化学气相沉积 电催化性能 氧气还原反应 |
Electrocatalytic oxygen-reduction reaction on a carbon nanofiber/carbon paper composite |
|
| ZHENG Jun-sheng,WANG Xi-zhao,FU Rong,LI Ping,YANG Dai-jun,LU Hong,MA Jian-Xin. Electrocatalytic oxygen-reduction reaction on a carbon nanofiber/carbon paper composite[J]. New Carbon Materials, 2011, 26(4). DOI: 10.1016/S1872-5805(11)60081-4 | |
| Authors: | ZHENG Jun-sheng WANG Xi-zhao FU Rong LI Ping YANG Dai-jun LU Hong MA Jian-Xin |
| Affiliation: | ZHENG Jun-sheng1,2,WANG Xi-zhao1,FU Rong1,3,LI Ping4,YANG Dai-jun1,LU Hong1,MA Jian-Xin1,2(1.Clean Energy Automotive Engineering Center,Tongji University(Jiading Campus),Shanghai201804,China,2.School of Automotive Studies,3.School of Resources and Environmental Engineering,East China University of Science and Technology,Shanghai200237,4.State Key Laboratory of Chemical Engineering,Shanghai20023... |
| Abstract: | A carbon nanofiber/carbon paper (CNF/CP) composite was synthesized directly on CP by a catalytic chemical vapor-deposition method,and the physicochemical properties of and oxygen-reduction reaction (ORR) on this composite were investigated.Scanning electron microscopy shows that the CNFs are uniformly distributed on the CP,and high-resolution transmission electron microscopy results show that the CNFs have a narrow size distribution.The CNF/CP composite has a large surface area,and its mesoporous character is confirmed by N2physisorption.Raman spectrum studies show that the CNF/CP composite has a high ratio of edge atoms to basal atoms compared with that of CP.From cyclic voltammetry studies,the CNF/CP composite was found to be more active than CP in terms of ORR,which may be due to the contribution from the CNFs.The CNF/CP composite shows a higher exchange current density and more positive equilibrium potential than CP,as verified by Tafel analysis.Moreover,linear-sweep voltammetry confirms that ORR on the CNF/CP composite is conducted through a two-electron reaction pathway. |
| Keywords: | Carbon nanofibers Carbon nanofiber/carbon paper composite Catalytic chemical vapor deposition Electrocatalytic properties Oxygen-reduction reaction |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |