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Preparation of Reticulated MAX‐Phase Support with Morphology‐Controllable Nanostructured Ceria Coating for Gas Exhaust Catalyst Devices
Author(s) -
Sun Ziqi,
Liang Ying,
Li Meishuan,
Zhou Yanchun
Publication year - 2010
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2010.03776.x
Subject(s) - materials science , nanocrystalline material , catalysis , chemical engineering , coating , cathodic protection , ceramic , porosity , nanotechnology , composite material , electrode , electrochemistry , organic chemistry , chemistry , engineering
Reticulated porous Ti 3 AlC 2 ceramic, a member of the MAX‐phase family (M n +1 AX n phases, where M is an early transition metal, A is an A‐group element, and X is carbon and/or nitrogen), was prepared from the highly dispersed aqueous suspension by a replica template method. Through a cathodic electrogeneration method, nanocrystalline catalytic CeO 2 coatings were deposited on the conductive porous Ti 3 AlC 2 supports. By adjusting the pH value and cathodic deposition current, coatings exhibiting nanocellar, nanosheets‐like, or bubble‐free morphologies can be obtained. This work expects to introduce a novel practically feasible material system and a catalytic coating preparation technique for gas exhaust catalyst devices.