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The Effect of N‐Containing Supports on Catalytic CO Oxidation Activity over Highly Dispersed Pt/UiO‐67
Author(s) -
Zhuang Guilin,
Bai Jiaqi,
Zhou Xiang,
Gao Yifen,
Huang Hongliang,
Cui Haiquan,
Zhong Xing,
Zhong ChongLi,
Wang Jianguo
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201600867
Subject(s) - chemistry , catalysis , metal organic framework , nanoparticle , heterogeneous catalysis , inorganic chemistry , chemical engineering , nanotechnology , organic chemistry , adsorption , materials science , engineering
Investigations of the effects of the support on catalytic properties are important for heterogeneous systems. Herein, we report the preparation of highly dispersed Pt nanoparticles (NPs) in three isomorphous UiO‐67‐type metal–organic frameworks (MOFs), namely, pristine UiO‐67, N‐UiO‐67, and NH 2 ‐UiO‐67. Structural measurements revealed that the sizes of the Pt NPs were 4.5 nm for Pt/UiO‐67 and 2.5 nm for N‐UiO‐67 and NH 2 ‐UiO‐67. The dominant influences on the sizes of the Pt NPs are the functional groups of the support and the pore size of the MOF. Furthermore, CO catalytic oxidations were performed as a model reaction. Interestingly, the catalytic performance sequence is 5 % Pt/N‐UiO‐67 > 5 % Pt/UiO‐67 > 5 % Pt/NH 2 ‐UiO‐67. A combination of experimental measurement and DFT calculation revealed that the catalytic properties depend on not only the size of the Pt NPs but also the nature of the support.