Results 251 to 260 of about 68,804 (279)

SO2 Adsorption on CeO2(100) and CeO2(111)

Topics in Catalysis, 2016
The adsorption and reaction of sulfur dioxide, SO2, was studied on oxidized and reduced CeOX(100) and compared to previous results on CeOX(111). SO2 adsorbs on oxidized CeO2(100) as sulfite, SO3 2−, at 200 K and sulfite is the only adsorbate observed on the surface at any temperature.
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Ion storage properties of CeO2 and mixed CeO2/SnO2 coatings

Journal of Materials Science, 1995
Ion storage CeO2 and CeO2/SnO2 coatings were prepared by the sol-gel dip-coating method using an aqueous-based process. The influence of added SnO2 in the CeO2 oxide coatings on the inserted/extracted charge was determined by chronocoulometric measurements.
Z. Crnjak Orel, B. Orel
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Preparation and catalytic performance of mesoporous ceria-base composites CuO/CeO2, Fe2O3/CeO2 and La2O3/CeO2

Journal of Porous Materials, 2016
Mesoporous CeO2-based oxides (CuO/CeO2, Fe2O3/CeO2 and La2O3/CeO2) were synthesized by a one-step hydrothermal method. CeO2-based oxides showed the undoped flower-like mesoporous microspheres of 2–6 μm in diameter with high BET surface areas. Copper, iron or lanthanum ions were each successfully doped into ceria and the dopants enhanced the amount of ...
Li Tan, Qiao Tao, Hongyi Gao, Jie Li, Dandan Jia, Ming Yang   +5 more
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Microwave absorption properties of CeO2 and Zn-modified CeO2 microstructures

Applied Surface Science, 2012
Abstract CeO 2 and Zn-modified CeO 2 microstructures have been synthesized by a facile hydrothermal method and their microwave absorption properties have been investigated in detail. Complex permittivity and permeability of CeO 2 and CeZn paraffin composites have been measured over the range of 2–18 GHz.
Hongjing Wu, Liuding Wang, Yiming Wang, Shaoli Guo   +3 more
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Nanostructured CeO2 Powders by XPS

Surface Science Spectra, 2006
Two different synthetic routes were used to synthesize three nanostructured cerium (IV) oxide powders: Two samples were obtained by precipitation from a basic solution of cerium nitrate and treated at 523 and 923 K, respectively, the third one was prepared by a microwave-assisted heating hydrolysis method and treated at 523 K.
M. M. NATILE, GLISENTI, ANTONELLA
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Optical and electrochemical properties of CeO2 and CeO2TiO2 coatings

Solar Energy Materials and Solar Cells, 1993
Abstract Thin solid films of CeO2 and mixed CeO2TiO2 were prepared by the sol-gel route via the dip-coating technique. Particulate sols of ceria were made from inorganic ((NH4)2Ce(NO3)6) precursor which were used for preparation of CeO2 thin solid films while CeO2TiO2 coatings have been made by using mixed organic-inorganic (Ti(OiPr)4 and CeCl3 ...
U LAVRENCICSTANGAR, B OREL, I GRABEC, B OGOREVC, K KALCHER   +4 more
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Surface structure and catalytic properties of MoO3/CeO2 and CuO/MoO3/CeO2

Journal of Colloid and Interface Science, 2011
XRD, LRS, TPR and in situ NH(3) adsorption FT-IR were used to investigate the dispersion state of the copper oxide and molybdena species of MoO(3)/CeO(2) and CuO/MoO(3)/CeO(2) catalysts as well as their surface acidity. The results showed that the molybdena monolayer modification promoted the dispersion of CuO due to the formation of new tetrahedral ...
Wujiang, Yu, Jie, Zhu, Lei, Qi, Chuanzhi, Sun, Fei, Gao, Lin, Dong, Yi, Chen   +6 more
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X-ray photoelectron spectroscopy of dielectric films of CeO2, CeO2/Cd, and CeO2/SiO prepared by thermal evaporation

Spectrochimica Acta Part B: Atomic Spectroscopy, 1989
Abstract Thermally evaporated films of CeO 2 , CeO 2 /Cd and CeO 2 /SiO were studied using X-ray photoelectron spectroscopy. Results showed that a slight reduction of Ce 4+ to Ce 3+ takes place upon vacuum evaporation of CeO 2 on to a substrate held at 100°C. This reduction is quite pronounced when a reducing substance such as SiO is co-evaporated
Z.T. Al-Dhhan, T. Hashemi, C.A. Hogarth
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Adsorption Kietics of Ceo2 Powders and Al Foam Loaded Ceo2

2013
Cerium oxide powder and Aluminum loaded cerium oxide were prepared by hydrothermal method using cerium nitrate hexahydrate and urea as raw materials. Cerium oxide precursors and cerium oxide particles were characterized by field emission scanning electron microscopy. Results showed that two kind of size and morphology particles were prepared.
Jianqing Chen, Donhui Yang, Yong Wei, Jinghua Jiang, Aibin Ma, Dan Song   +5 more
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