Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation | |
Zhang, X ; Xu, BQ | |
2010-05-06 ; 2010-05-06 | |
关键词 | Au/ZrO2 catalyst 1 3-butadiene hydrogenation zirconia nanoparticles size effect heterogeneous catalysis GOLD CATALYSTS OXIDATION NI/ZRO2 H-2 Chemistry, Multidisciplinary |
中文摘要 | This work explores the size-effect of zirconia nano particles on the catalysis of Au/ZrO2-AN catalyst for 1,3-butadiene hydrogenation. Zirconia nanoparticles with different sizes (6-30 nm) were prepared by pretreatment at different temperatures (673-1 073 K) and 0.7% Au/ZrO2-AN-T catalysts by deposition-precipitation method. The samples were characterized with XRD, TEM, XRF and nitrogen adsorption measurements. While the Au particles in all the 0.7% Au/ZrO2-AN-T catalysts appeared to show similar sizes (4-5 nm), the catalytic activity order for 1, 3-butadiene hydrogenation clearly revealed that smaller zirconia nanoparticles led to 1% Au/ZrO2-AN-T catalyst with higher catalytic activities. A 100% selectivity to butenes is achieved and the trans to cis ratio in 2-butenes is 0.5-1 over all the 1% Au/ZrO2-AN-T catalysts. The activity improvement by reducing zirconia particle size seems attributable to increased Au-zirconia junctions in the catalyst, as evidenced by the TEM analysis. |
语种 | 中文 ; 中文 |
出版者 | HIGHER EDUCATION PRESS ; BEIJING ; SHATANHOU ST 55, BEIJING 100009, PEOPLES R CHINA |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/13060] ![]() |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Zhang, X,Xu, BQ. Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation[J],2010, 2010. |
APA | Zhang, X,&Xu, BQ.(2010).Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation.. |
MLA | Zhang, X,et al."Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation".(2010). |
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