NDLI: Co$_{3}$O$_{4}$-KIT-6 composite catalysts: synthesis, characterization, and application in catalytic decomposition of N$

Content Provider	Springer Nature Link
Author	Ma, Zhen Ren, Yu Bruce, Peter G.
Copyright Year	2012
Abstract	Two sets of Co$_{3}$O$_{4}$-KIT-6 composite catalysts were prepared. To prepare the first set of catalysts, mesoporous silica (KIT-6) samples with different pore sizes were obtained by changing the hydrothermal temperature during synthesis, and the same amount of Co$_{3}$O$_{4}$ (10 %) was loaded by impregnation. In the second set, KIT-6 prepared by hydrothermal synthesis at 100 °C was used to load different amounts of Co$_{3}$O$_{4}$ (up to 50 %). These materials were characterized by low-angle and wide-angle X-ray diffraction, transmission electron microscopy (TEM), and N$_{2}$ adsorption–desorption. The TEM results showed that Co$_{3}$O$_{4}$ species do not disperse on the inner pores of KIT-6 homogeneously, nor do they form separate Co$_{3}$O$_{4}$ particles detached from KIT-6. Rather, Co$_{3}$O$_{4}$ crystals grow into the KIT-6 matrix, forming Co$_{3}$O$_{4}$-KIT-6 composite grains in some parts of the KIT-6 matrix, whereas there are empty mesoporous silica channels in other parts. The influences of textural properties of KIT-6 support and the loading of Co$_{3}$O$_{4}$ on the catalytic activity in N$_{2}$O decomposition were studied. It was found that the textural properties (e.g., pore size, surface area) of KIT-6 have little effect on the catalytic activity, whereas the amount of Co$_{3}$O$_{4}$ directly correlates with the catalytic activity.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	13880764
Journal	Journal of Nanoparticle Research
Volume Number	14
Issue Number	8
e-ISSN	1572896X
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-07-10
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Decomposition of nitrous oxide Mesoporous silica KIT-6 Cobalt oxide Nanostructured catalysts Inorganic Chemistry Characterization and Evaluation of Materials Nanotechnology Physical Chemistry Optics, Optoelectronics, Plasmonics and Optical Devices
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Atomic and Molecular Physics, and Optics Condensed Matter Physics Bioengineering Modeling and Simulation

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