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Monolithically Integrated Spinel M x Co 3− x O 4 (M=Co, Ni, Zn) Nanoarray Catalysts: Scalable Synthesis and Cation Manipulation for Tunable Low‐Temperature CH 4 and CO Oxidation
Author(s) -
Ren Zheng,
Botu Venkatesh,
Wang Sibo,
Meng Yongtao,
Song Wenqiao,
Guo Yanbing,
Ramprasad Ramamurthy,
Suib Steven L.,
Gao PuXian
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201403461
Subject(s) - catalysis , spinel , materials science , fabrication , desorption , cordierite , oxide , chemical engineering , scalability , rational design , population , adsorption , inorganic chemistry , nanotechnology , chemistry , computer science , metallurgy , database , medicine , biochemistry , alternative medicine , pathology , engineering , demography , sociology
A series of large scale M x Co 3− x O 4 (M=Co, Ni, Zn) nanoarray catalysts have been cost‐effectively integrated onto large commercial cordierite monolithic substrates to greatly enhance the catalyst utilization efficiency. The monolithically integrated spinel nanoarrays exhibit tunable catalytic performance (as revealed by spectroscopy characterization and parallel first‐principles calculations) toward low‐temperature CO and CH 4 oxidation by selective cation occupancy and concentration, which lead to controlled adsorption–desorption behavior and surface defect population. This provides a feasible approach for scalable fabrication and rational manipulation of metal oxide nanoarray catalysts applicable at low temperatures for various catalytic reactions.