Construction of Hierarchically Porous Nanoparticles@ Metal-Organic Frameworks Composites by Inherent Defects for the Enhancement of Catalytic Efficiency

被引：107
|
作者：
Meng, Fanchen [1 ,2 ]
Zhang, Suoying [1 ,2 ,3 ]
Ma, Lu [3 ]
Zhang, Weina [1 ,2 ]
Li, Matthew [4 ,5 ]
Wu, Tianpin [3 ]
Li, Hang [6 ]
Zhang, Tao [1 ,2 ,5 ]
Lu, Xiaohua [6 ]
Huo, Fengwei [1 ,2 ]
Lu, Jun [5 ]
机构：
[1] Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
[2] Nanjing Tech Univ NanjingTech, IAM, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China
[3] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA
[4] Univ Waterloo, Dept Chem Engn, Waterloo Inst Nanotechnol, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada
[5] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA
[6] Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
ADVANCED MATERIALS | 2018年 / 30卷 / 49期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
composites; defects; hierarchical pores; metal-organic frameworks; selectivity; IMPARTING FUNCTIONALITY; HETEROGENEOUS CATALYSTS; SIZE; TRANSFORMATION; SHAPE;
D O I：
10.1002/adma.201803263
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Nanoparticles@metal-organic frameworks (MOFs) composites have attracted considerable attention in recent years due to the prominent selective catalytic activity. However, it is highly desirable to develop a simple and universal way to settle the trade-off between the catalytic efficiency and selectivity. Herein, by employing the thermal instability of inherent defects, hierarchically porous Pt@UiO-66-NH2, Pt@UiO-66, Pt@ZIF-8, and Au@ZIF-8 are successfully constructed after annealing at an appropriate temperature, respectively. The generated mesopores in the MOFs can be located around the external nanoparticle to retain the MOF shell for catalytic selectivity. Finally, when tested in olefin hydrogenation, Pt@UiO-66-NH2 shows significantly improved catalytic rate and enhanced dynamic selectivity.
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页数：8
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