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| 高分散PtRu/C催化剂的制备及对甲醇及吸附态CO的电催化氧化 | |
| 引用本文： | 刘冉,邬冰,高颖,唐亚文,陆天虹. 高分散PtRu/C催化剂的制备及对甲醇及吸附态CO的电催化氧化[J]. 分子科学学报, 2007, 23(5): 316-321 |
| 作者姓名： | 刘冉 邬冰 高颖 唐亚文 陆天虹 |
| 作者单位： | 1. 哈尔滨师范大学理化学院化学系,黑龙江,哈尔滨,150080;哈尔滨学院生化学院化学系,黑龙江,哈尔滨,150086 2. 哈尔滨师范大学理化学院化学系,黑龙江,哈尔滨,150080 3. 南京师范大学化学与环境科学学院,江苏,南京,210097 |
| 基金项目： | 国家自然科学基金资助项目(20573029、20573057)，黑龙江省自然科学基金资助项目(B200505)，黑龙江省教育厅基金资助项目(11511110) |
| 摘 要： | 采用化学还原浸渍法在两种不同条件下制备炭载PtRu催化剂,通过XRD和TEM技术对催化剂的晶体结构及微观形貌进行了分析,运用循环伏安法、线性扫描法来检测不同条件下制备的催化剂对甲醇及吸附态CO(COad)电催化氧化活性的影响.结果表明,不同条件下制备的催化剂Pt和Ru形成合金的程度不同,Pt-Ru合金原子的颗粒在载体炭上的粒径大小和分布不同,导致催化剂对甲醇及COad的电氧化催化活性不同.其中以甲醛为还原剂在乙二醇体系中制备的催化剂PtRu/C-2能形成较好的合金状态,粒径小,分布均匀,对甲醇及COad的氧化具有较高的电催化活性. |
| 关 键 词： | PtRu/C催化剂 CO 甲醇 电催化氧化 |
| 文章编号： | 1000-9035（2007）05-0316-06 |
| 修稿时间： | 2007-03-19 |
Preparation of high dispersion PtRu/C catalysts and electrooxidation of methanol and adsorbed CO |
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| LIU Ran,WU Bing,GAO Ying,TANG Ya-wen,LU Tian-hong. Preparation of high dispersion PtRu/C catalysts and electrooxidation of methanol and adsorbed CO[J]. Journal of Molecular Science, 2007, 23(5): 316-321 | |
| Authors: | LIU Ran WU Bing GAO Ying TANG Ya-wen LU Tian-hong |
| Affiliation: | 1. Department of Chemistry, College of Physical and Chemistry, Harbin Normal University, Harbin 150080,China; 2. Department of Chemistry,College of Biochemistry, Harbin University, Harbin 150086 ,China; 3. College of Chemistry and Environmental Seience,Nanjing Normal University,Nanjing 210097,China |
| Abstract: | The activities of the PtRu/C catalysts prepared in two different conditions were investigated with regard to the oxidation of methanol and adsorbed CO.The catalysts prepared have been characterized by powder X-ray diffraction(XRD),transmission electron microscopy(TEM),cyclic voltammetry(CV),linear sweep voltammetry(LSV) and amperometric i-t techniques.It was found that the catalysts prepared in two different conditions affect the degree of alloying,the particle size and the distribution in carbon support and lead to the different electrocatalytic oxidation activity in methanol and adsorbed CO.The catalyst prepared in glycol ethylene with HCHO as reductant,PtRu/C-2,has smaller particle size,more homogeneous distribution of Pt-Ru alloy in carbon and the highest electrocatalytic oxidation activity in methanol and adsorbed CO. |
| Keywords: | PtRu/C catalyst CO methanol electrocatalytic oxidation |
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