引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1675次   下载 126 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Methanol Tolerant Non-noble Metal Co-C-N Catalyst for Oxygen Reduction Reaction Using Urea as Nitrogen Source
Yu-jun Si*1,2, Chang-guo Chen*2,3, Wei Yin1, Hui Cai1
1.College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China;2.School of Material Science and Engineering, Chongqing University, Chongqing 400044, China;3.College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
Abstract:
A non-noble metal oxygen reduction reaction (ORR) catalyst labeled as Co-C-N(800) was synthesized by heat-treating a mixture of urea, cobalt chloride and acetylene black for 2 h at 800 oC in an inert nitrogen atmosphere. X-ray diffraction pattern indicates that a metallic β-Co is generated after the heat-treating process. The results from cyclic voltammograms show that the obtained Co-C-N(800) catalyst has good ORR catalytic activity in 0.5 mol/L H2SO4 solution. The catalyst is also good at methanol tolerance and stability in the acidic solution.
Key words:  Direct methanol fuel cell, Oxygen reduction reaction, Catalyst, Non-noble metal, Methanol resistance
FundProject:
Methanol Tolerant Non-noble Metal Co-C-N Catalyst for Oxygen Reduction Reaction Using Urea as Nitrogen Source
司玉军*1,2, 陈昌国*3,1, 尹伟3, 蔡慧3
1.重庆大学材料科学与工程学院, 重庆400044;2.四川理工学院化学与制药工程学院,自贡643000;3.重庆大学化学化工学院, 重庆400044
摘要:
机械研磨尿素、氯化钴、乙炔黑混合物并经800 oC热处理后,制备出了非贵金属Co-C-N(800)催化剂. X射线衍射测试表明催化剂中有单质β-Co生成. 用循环伏安法表征了催化剂的电化学特性,结果表明Co-C-N(800)具有良好的催化活性和耐甲醇性能. 45 h浸泡实验表明,催化剂在酸性电解液中具有较好的稳定性.
关键词:  燃料电池,氧还原反应,催化剂,非贵金属,耐甲醇性
DOI:10.1088/1674-0068/23/03/331-334
分类号: