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Scalable Integration of Highly Uniform Mn x Co 3− x O 4 Nanosheet Array onto Ceramic Monolithic Substrates for Low‐Temperature Propane Oxidation
Author(s) -
Tang Wenxiang,
Ren Zheng,
Lu Xingxu,
Wang Sibo,
Guo Yanbing,
Hoang Son,
Du Shoucheng,
Gao PuXian
Publication year - 2017
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.201700795
Subject(s) - nanosheet , materials science , spinel , oxide , ceramic , catalysis , monolith , propane , chemical engineering , composite number , cordierite , nanotechnology , composite material , metallurgy , chemistry , organic chemistry , engineering , biochemistry
The redox reaction between KMnO 4 and Co(NO 3 ) 2 was designed and readily utilized for the scalable integration of spinel Mn x Co 3− x O 4 nanosheet arrays in three‐dimensional ceramic honeycombs by controlling the reaction temperature. The Co 2+ can reduce MnO 4 − to form Mn–Co spinel oxide nanosheet arrays uniformly on the channel surface of cordierite honeycomb. The novel platinum group metal free oxide nanosheet array integrated ceramic honeycomb monolith shows good low‐temperature catalytic activity for propane oxidation, with the 50 % conversion temperature achieved at 310 °C, which is a much lower temperature than that over the wash‐coated commercial Pt/Al 2 O 3 . These integrated Mn–Co composite oxide nanoarrays may hold great promise for the construction of advanced monolithic catalyst for high‐performance and low‐cost emission control.