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Hollow Porous Carbon with in situ Generated Monodisperse Gold Nanoclusters for Efficient CO Oxidation
Author(s) -
Qu Jiafu,
Zhu Haiguang,
Chen Dongyun,
Li Najun,
Xu Qingfeng,
Xie Jianping,
Li Hua,
He Jinghui,
Lu Jianmei
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201701463
Subject(s) - nanoclusters , mesoporous material , materials science , chemical engineering , catalysis , nanocomposite , substrate (aquarium) , nanostructure , carbon fibers , nanotechnology , dispersity , porosity , noble metal , silicon , metal , chemistry , organic chemistry , metallurgy , polymer chemistry , composite number , composite material , oceanography , geology , engineering
Precious metals (Au and Pt) loaded in a mesoporous substrate (carbon and silicon) are popular materials for catalytic CO oxidation. However, the preparation of noble metals and the metal particle size after deposition in the pore channels of the mesoporous materials are serious issues for environmentally friendly applications. Herein, a gold‐decorated hollow porous carbon nanospheres (Au/HPCN) catalyst, which is both durable and uniform, is synthesized by a facile in situ reduction route for continuous CO oxidation. In our approach, HPCNs were selected as the substrate because of their thermal stability, well‐defined nanostructure, and large surface area. Au nanoclusters were loaded in the pore channels of HPCN because of their stability and catalytic performance. The as‐synthesized nanocomposite possesses a uniform size and highly porous structure. Moreover, CO oxidation occurred both during the reduction of Au 3+ ions and after the preparation of Au/HPCN.