Hollow carbon spheres with wide size distribution as anode catalyst support for direct methanol fuel cells
文献类型：期刊论文
| 作者 | Wen, Zhenhai; Wang, Qiang; Zhang, Qian; Li, Jinghong |
| 刊名 | Electrochemistry communications
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 9期号:8页码:1867-1872 |
| 关键词 | Hollow carbon spheres Catalyst support Methanol electro-oxidation |
| ISSN号 | 1388-2481 |
| DOI | 10.1016/j.elecom.2007.04.016 |
| 通讯作者 | Li, jinghong(jhli@mail.tsinghua.edu.cn) |
| 英文摘要 | Hollow carbonaceous composites (hccs) possessing sphere and hemisphere shape, which had wide size distribution between several tens of nanometers and several micrometers, were prepared through a facile hydrothermal method using glucose as carbon source with the assistance of sodium dodecyl sulfate (sds). pyrolysis of these hollow carbonaceous composites at 900 degrees c under nitrogen flow produced carbonized hollow carbon spheres (hcss) without changing their structures. platinum (pt) was directly deposited on the surface of the hcss by incipient wet method, using the nabh4 as the reductant. tem, sem, powder xrd and ft-ir were utilized to characterize all these samples. it was found that pt nanoparticles were uniformly anchored on the outer and the inner surface of hcss. the electrocatalytic properties of the pt/hcs electrode for methanol oxidation have been investigated through cyclic voltammetry and chronoamperometry. the pt/hcs electrode showed significantly higher electrocatalytic activity and more stability for methanol oxidation compared with pt supported carbon microspheres (pt/cms) and commercial carbon (pt/xc-72) electrode. the excellent performance for the pt/hcs might be attributed to the high dispersion of platinum catalysts and the particular hollow structure of hcss. (c) 2007 elsevier b.v. all rights reserved. |
| WOS关键词 | SUPERCRITICAL-FLUID ; PYROLYSIS PROCESS ; CATHODE CATALYST ; OXIDATION ; NANOPARTICLES ; ELECTROOXIDATION ; ELECTROCATALYST ; NANOTUBES ; CAPSULES ; SHELL |
| WOS研究方向 | Electrochemistry |
| WOS类目 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000248883100003 |
| 出版者 | ELSEVIER SCIENCE INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380946 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Jinghong |
| 作者单位 | 1.Tsing Hua Univ, Dept Chem, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, Zhenhai,Wang, Qiang,Zhang, Qian,et al. Hollow carbon spheres with wide size distribution as anode catalyst support for direct methanol fuel cells[J]. Electrochemistry communications,2007,9(8):1867-1872. |
| APA | Wen, Zhenhai,Wang, Qiang,Zhang, Qian,&Li, Jinghong.(2007).Hollow carbon spheres with wide size distribution as anode catalyst support for direct methanol fuel cells.Electrochemistry communications,9(8),1867-1872. |
| MLA | Wen, Zhenhai,et al."Hollow carbon spheres with wide size distribution as anode catalyst support for direct methanol fuel cells".Electrochemistry communications 9.8(2007):1867-1872. |
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来源：中国科学院大学
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