| 梁长海,刘倩,李闯,陈霄.纳米Pd的形貌和尺寸可控制备及其1,4-丁炔二醇加氢性能[J].分子催化,2013,(4):316-322 |
| 纳米Pd的形貌和尺寸可控制备及其1,4-丁炔二醇加氢性能 |
| Shape and Size-Controlled Synthesis of Pd Nanoparticles for Selective Hydrogenation of 2-Butyne-1,4-diol |
| 投稿时间：2013-04-11 修订日期：2013-06-17 |
| DOI： |
| 中文关键词: 钯形貌 晶种法 1,4-丁炔二醇 选择加氢 |
| 英文关键词:Shape Palladium Seed-mediated 2-Butyne-1,4-diol Selective hydrogenation |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 采用化学还原法合成Pd纳米立方体，并将其作为晶种，进一步合成大尺寸的纳米Pd立方体以及具有不同{100}和{111}晶面比例的纳米Pd多面体。将形貌和尺寸可控的纳米Pd溶胶应用于1,4-丁炔二醇催化加氢的反应中，反应结果表明，纳米Pd的催化性能取决于其尺寸和形貌。{111}晶面的催化活性高于{100}晶面，PVP稳定的Pd胶体对1,4-丁烯二醇均具有较高选择性，具有适当{100}和{111}晶面比例的纳米Pd多面体对1,4-丁烯二醇的选择性可达96%。 |
| 英文摘要: |
| Uniform Pd nanocrystals with cubic shapes were synthesized through a chemical reduction method. These nanoparticles were used as seeds to synthesis nanocubes with larger size and polyhedral nanocrystals with different proportions of {100} to {111} facets on the surface. The selective hydrogenation of butyne-1,4-diol was chosen as a model reaction, it was found that the catalytic properties of Pd nanoparticles are mainly determined by its size and shape. The hydrogenation of butyne-1,4-diol on Pd{111} was faster than that on Pd{100}. All of the Pd nanocrystals stabilized by PVP showed higher selectivity to 2-butene-1,4-diol, and the selectivity of 2-butene-1,4-diol using Pd polyhedron with proper proportion of {100} and {111} facets as catalyst can received 96%. |
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