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A New Method for Post‐Synthesis Coating of Zirconia on the Mesopore Walls of SBA‐15 Without Pore Blocking
Author(s) -
Krishnan Cheralathan Kanakkampalayan,
Hayashi Takahiro,
Ogura Masaru
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702822
Subject(s) - mesoporous material , calcination , materials science , cubic zirconia , coating , chemical engineering , blocking (statistics) , hydrolysis , nanotechnology , composite material , organic chemistry , chemistry , catalysis , computer science , ceramic , computer network , engineering
Zirconia coating of the mesopore walls of the mesoporous silica material SBA‐15 is achieved by internal hydrolysis of a zirconia precursor, which is loaded inside the mesopores, using NH 3 /H 2 O vapor at elevated temperature and subsequent calcination (see figure). High loadings of zirconia, more than 30 wt%, can be coated on the mesopore walls without any pore blocking.