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| PtRu纳米线的合成及其在直接甲醇燃料电池阳极中的催化活性 | |
| 引用本文： | 孙世国,徐恒泳,唐水花,郭军松,李焕巧,曹雷,周冰,辛勤,孙公权.PtRu纳米线的合成及其在直接甲醇燃料电池阳极中的催化活性[J].催化学报,2006,27(10):932-936. |
| 作者姓名： | 孙世国 徐恒泳 唐水花 郭军松 李焕巧 曹雷 周冰 辛勤 孙公权 |
| 作者单位： | 1. 中国科学院大连化学物理研究所,辽宁,大连,116023;中国科学院研究生院,北京,100049 2. 中国科学院大连化学物理研究所,辽宁,大连,116023 3. Headwaters Nanokinetix公司,劳伦斯维尔,纽约08648,美国 |
| 基金项目： | 中德直接液体乙醇燃料电池基础研究基金 |
| 摘 要： | 分别以SBA-15和MCM-41介孔分子筛作模板剂,采用浸渍还原法制备了纵横比及合金度不同的双组元PtRu纳米线和纳米棒电催化剂. 透射电镜、 X射线衍射表征和电化学测试结果表明, PtRu纳米线具有较高的合金度和较大的纵横比,在甲醇硫酸溶液中表现出更好的电催化活性. 初步探讨了PtRu纳米线催化剂的合金度和纵横比对其电催化活性和电极性能的影响. |
| 关 键 词： | 铂 钌 纳米线 电催化剂 SBA-15 MCM-41 介孔分子筛 直接甲醇燃料电池 |
| 文章编号： | 0253-9837（2006）10-0932-05 |
| 收稿时间： | 05 9 2006 12:00AM |
| 修稿时间： | 2006-05-09 |
Synthesis of PtRu Nanowires and Their Catalytic Activity in the Anode of Direct Methanol Fuel Cells |
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| SUN Shiguo,XU Hengyong,TANG Shuihua,GUO Junsong,LI Huanqiao,CAO Lei,ZHOU Bing,XIN Qin,SUN Gongquan.Synthesis of PtRu Nanowires and Their Catalytic Activity in the Anode of Direct Methanol Fuel Cells[J].Chinese Journal of Catalysis,2006,27(10):932-936. | |
| Authors: | SUN Shiguo XU Hengyong TANG Shuihua GUO Junsong LI Huanqiao CAO Lei ZHOU Bing XIN Qin SUN Gongquan |
| Institution: | 1 Dalian Institute of Chemical Physics, The Chinse Academy of Sciences, Dalian 116023 , Liaoning, China ; 2 Headwaters Nanokinetix Inc. , Lawrenceville, NY 08648, USA ; 3 Graduate University of The Chinese Academy of Sciences , Beijing 100049 , China |
| Abstract: | PtRu nanowires and nanorods with different alloy extents and aspect ratios were synthesized by impregnating and reducing Pt and Ru precursors using SBA-15 and MCM-41 mesoporous molecular sieves as the template,respectively. The results of(X-ray) powder diffraction,transmission electron microscopy, cyclic voltammetry,and linear sweep voltammetry demonstrated that the PtRu nanowires synthesized using SBA-15 as the template had a higher alloy extent,larger aspect ratio,and better electrocatalytic activity in(a methanol) and sulfuric acid solution than the PtRu nanorods synthesized using MCM-41 template.The effects of alloy extent and aspect ratio of PtRu electrocatalysts on the catalytic activity and anode performance of direct methanol fuel cells were discussed. |
| Keywords: | platinum ruthenium nanowire electrocatalyst SBA-15 MCM-41 mesoporous molecular sieve direct methanol fuel cell |
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