| 乙二醇还原Ru／CNTs的制备及催化氨分解性能研究 |
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| 引用本文： | 武小满,李学峰,张鸿斌.乙二醇还原Ru／CNTs的制备及催化氨分解性能研究[J].纳米科技,2010(1):15-20. |
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| 作者姓名： | 武小满 李学峰 张鸿斌 |
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| 作者单位： | [1]许昌学院化学化工学院,河南许昌461000 [2]厦门大学化学化工学院固体表面物理化学国家重点实验室,福建厦门361005 |
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| 基金项目： | 国家重点基础研究发展规划“973”项目(2005CB221400);;国家自然科学基金项目(20473063和20590364) |
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| 摘 要： | 为获得高分散的Ru负载催化剂，采用乙二醇液相化学还原沉积法制备Ru／CNTs，TEM、XRD、H2-TPD表征，结果表明，乙二醇液相还原法可以制备金属粒径小（2—4nm）而均匀的高分散度的钌修饰CNTs，其表面存在较高稳态浓度吸附氢。以氨分解制氢作探针反应，实验结果表明，在相同反应条件下，经乙二醇油浴液相还原沉积制备的Ru／CNTs催化剂上氨转化率约为浸渍法制得相应催化剂上的1．6倍，同时发现钌微晶粒径在3—4nm范围的Ru／CNTs对氨分解制氢的催化性能最佳，钌微晶粒径≤2nm时氨分解转化率明显下降。
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| 关 键 词： | 钌／碳纳米管 液相化学还原沉积 氨分解制氢 |
Preparation of Ru/CNTs Nano-material by Polyol Reduction-deposition Method and its Catalytical Performance for Ammonia Decomposition |
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| Authors: | WU Xiao-Man LI Xue-Feng ZHANG Hong-Bin |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering/a>;Xuchang University/a>;Xuchang 461000/a>;China;2. State Key Laboratory for Physical Chemistry of Solid Surfaces/a>;College of Chemistry and Chemical Engineering/a>;Xiamen University/a>;Xiamen 361005/a>;China |
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| Abstract: | With CNTs as substrate,a series of metallic Ru/CNTs were prepared by using glycol reduction-deposition method for gaining Ru-loading catalyst dispersed highly. TEM observations,XRD and H2-TPD measurements of the produced materials showed that metal Ru nanoparticles were quite uniform in shape and size and well dispersed on the CNTs surface and the Ru/CNTs could adsorb considerably greater amount of hydrogen when using glycol reduction -deposition method,especially by micromaveassisted heating polyol process... |
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| Keywords: | Ru/carbon nanotubes glycol reduction-deposition method NH3 decomposition |
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