Facile one-pot synthesis of MOF supported gold pseudo-single-atom catalysts for hydrogenation reactions†,Materials Chemistry Frontiers

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Facile one-pot synthesis of MOF supported gold pseudo-single-atom catalysts for hydrogenation reactions†
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2018-03-12 00:00:00 , DOI: 10.1039/c8qm00081f
Zumin Wang _{1,

2,

3,

4,

5} , Lin Gu _{6,

7,

8,

9} , Li Song _{5,

10,

11,

12,

13} , Hao Wang _{14,

15,

16} , Ranbo Yu _{1,

2,

3,

4,

5}

Affiliation

Department of Physical Chemistry
School of Metallurgical and Ecological Engineering
University of Science and Technology Beijing
Beijing 100083
P. R. China
Institute of Physics
Chinese Academy of Sciences
Beijing 100190
China
National Synchrotron Radiation Laboratory
CAS Center for Excellence in Nanoscience
University of Science and Technology of China
Hefei
Centre for Future Materials
University of Southern Queensland
Australia

Catalysts based on extremely small (single atoms or pseudo single atoms) noble metals can lead to much more efficient use through enhanced reactivity and selectivity. However, fabrication of practical and stable (pseudo) single-atom catalysts on various supports remains a significant challenge. Herein, we report a facile co-precipitation and conversion strategy to fabricate a series of gold pseudo single-atom supported metal organic framework catalysts (PSAC Au/MOF) on a large scale. By well controlled synthesis of precursors, up to 1.0 wt% surface clean Au atoms can be atomically dispersed and stabilized on the support. The PSAC Au/MOF exhibited superior catalytic activity in hydrogenation of p-nitrophenol, exceeding the turnover frequency of most reported catalysts by more than one order of magnitude. No obvious decline in activity was observed after 5 cycles.

中文翻译：

MOF负载的金假单原子催化剂用于氢化反应的便捷一锅合成†

基于极小（单原子或伪单原子）贵金属的催化剂可通过提高反应性和选择性来提高使用效率。然而，在各种载体上制造实用且稳定的（伪）单原子催化剂仍然是一项重大挑战。本文中，我们报道了一种易于共沉淀和转化的策略，以大规模制备一系列金假单原子负载的金属有机骨架催化剂（PSAC Au / MOF）。通过对前体的良好控制合成，可以将高达1.0 wt％的表面纯净Au原子原子分散并稳定在载体上。PSAC Au / MOF在对p的氢化中表现出优异的催化活性-硝基苯酚，比大多数报道的催化剂的周转频率高出一个数量级以上。5个循环后未观察到活性的明显下降。

更新日期：2018-03-12

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