Au@Pt Nanotubes within CoZn-Based Metal-Organic Framework for Highly Efficient Semi-hydrogenation of Acetylene

被引:17
作者
Wang, Jiajia [1 ]
Xu, Haitao [1 ]
Ao, Chengcheng [3 ]
Pan, Xinbo [1 ]
Luo, Xikuo [1 ]
Wei, ShengJie [2 ]
Li, Zhi [2 ]
Zhang, Lidong [3 ]
Xu, Zhen-liang [1 ]
Li, Yadong [2 ]
机构
[1] East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China
[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
[3] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China
基金
中国国家自然科学基金; 国家重点研发计划;
关键词
SELECTIVE HYDROGENATION; IN-SITU; NANOPARTICLES; HOLLOW; CHEMISTRY; CATALYSTS; PROPERTY; STORAGE; SURFACE; DESIGN;
D O I
10.1016/j.isci.2020.101233
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Designing nanocatalysts with synergetic functional component is a desirable strategy to achieve both high activity and selectivity for industrially important hydrogenation reaction. Herein, we fabricated a core-shell hollow Au@Pt NTs@ZIFs (ZIF, zeolitic imidazolate framework; NT, nanotube) nanocomposite as highly efficient catalysts for semi-hydrogenation of acetylene. Hollow Au@PtNTswere synthesized by epitaxial growth of Pt shell on Au nanorods followed with oxidative etching of Au@Pt nanorod. The obtained hollow Au@PtNTs were then homogeneously encapsulated within ZIFs through in situ crystallization. By combining the high activity of bimetallic nanotube and gas enrichment property of porousmetal-organic frameworks, hollow Au@Pt NT@ZIF catalyst was demonstrated to show superior catalytic performance for the semi-hydrogenation of acetylene,in terms of both selectivity and activity, over those of monometallic Au and solid bimetal nanorod@ZIF counterparts. This catalysts design idea is believed to be inspirable for the development of highly efficient nanocomposite catalysts.
引用
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页数:33
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