Rare earth oxide coating of the walls of SBA-15

被引:119
作者
Sauer, J [1 ]
Marlow, F [1 ]
Spliethoff, B [1 ]
Schüth, F [1 ]
机构
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
关键词
D O I
10.1021/cm0111377
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Rare earth oxide dispersions, primarily europium doped yttria (YOX), in the ordered mesoporous material SBA-15 were synthesized by impregnating the calcined host material with different aqueous rare earth nitrate solutions and subsequent calcination. The materials obtained were characterized by N-2-sorption measurements, XRD, TEM, IR, and optical spectra. The data suggest a coating of the internal surfaces of SBA-15 by rare earth oxides at loadings up to a monolayer, while at higher loading oxide nanoparticles form.
引用
收藏
页码:217 / 224
页数:8
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