Novel Nanocrystalline Ce1−xLaxO2−δ (x = 0.2) Solid Solutions: Structural Characteristics and Catalytic Performance
作者： Benjaram, M. Reddy , Lakshmi Katta , Gode Thrimurthulu
DOI: 10.1021/CM903282W
关键词: Analytical chemistry 、 Chemical engineering 、 Diffuse reflectance infrared fourier transform 、 Solid solution 、 Oxygen storage 、 BET theory 、 Temperature-programmed reduction 、 Catalysis 、 Coprecipitation 、 Raman spectroscopy 、 Chemistry
摘要: The catalytic CO oxidation results revealed that nanosized ceria-lanthana (CL) solid solution exhibits superior performance and thermal stability in comparison to ceria-zirconia (CZ) solution. rationale for excellent behavior of the CL sample was elucidated from viewpoint structure, redox behavior, bulk oxygen mobility. Accordingly, this investigation has been synthesized by a modified coprecipitation method, structural properties have deeply investigated employing various characterization techniques, namely, X-ray diffraction (XRD), BET surface area, transmission electron microscopy (TEM), Raman spectroscopy (UV-RS Vis-RS), UV-visible diffuse reflectance (UV-vis DRS), temperature programmed reduction (TPR). efficiency evaluated storage/release capacity (OSC) activity. analyses provided deep insight on physica...
acs.org
sci-hub.se 参考文章(51)
Gang Liu, José A. Rodriguez, Zhipeng Chang, Jan Hrbek, Charles H. F. Peden, Adsorption and reaction of SO2 on model Ce1-xZrxO2(111) catalysts Journal of Physical Chemistry B. ,vol. 108, pp. 2931- 2938 ,(2004) , 10.1021/JP030808G
Xianqin Wang, Jonathan C. Hanson, Gang Liu, José A. Rodriguez, Ana Iglesias-Juez, Marcos Fernández-Garcı́a, The behavior of mixed-metal oxides: physical and chemical properties of bulk Ce1-xTbxO2 and nanoparticles of Ce1-xTbxOy. Journal of Chemical Physics. ,vol. 121, pp. 5434- 5444 ,(2004) , 10.1063/1.1781116
Toshiyuki Masui, Yumin Peng, Ken-ichi Machida, Gin-ya Adachi, Reduction Behavior of CeO2−ZrO2 Solid Solution Prepared from Cerium Zirconyl Oxalate Chemistry of Materials. ,vol. 10, pp. 4005- 4009 ,(1998) , 10.1021/CM980443Q
V SHAPOVALOV, H METIU, Catalysis by doped oxides : CO oxidation by AuxCe1- xO2 Journal of Catalysis. ,vol. 245, pp. 205- 214 ,(2007) , 10.1016/J.JCAT.2006.10.009
M Wilkes, Catalytic studies on ceria lanthana solid solutions II. Oxidation of carbon monoxide Journal of Catalysis. ,vol. 219, pp. 295- 304 ,(2003) , 10.1016/S0021-9517(03)00045-9
Takaaki Taniguchi, Tomoaki Watanabe, Naonori Sakamoto, Nobuhiro Matsushita, Masahiro Yoshimura, Aqueous Route to Size-Controlled and Doped Organophilic Ceria Nanocrystals Crystal Growth & Design. ,vol. 8, pp. 3725- 3730 ,(2008) , 10.1021/CG800363W
F. J. Pérez-Alonso, M. López Granados, M. Ojeda, P. Terreros, S. Rojas, T. Herranz, J. L. G. Fierro, M. Gracia, J. R. Gancedo, Chemical Structures of Coprecipitated Fe−Ce Mixed Oxides Chemistry of Materials. ,vol. 17, pp. 2329- 2339 ,(2005) , 10.1021/CM0477669
M. Fernández-García, A. Martínez-Arias, J. C. Hanson, J. A. Rodriguez, Nanostructured oxides in chemistry: characterization and properties. Chemical Reviews. ,vol. 104, pp. 4063- 4104 ,(2004) , 10.1021/CR030032F
Gabriele Balducci, M. Saiful Islam, Jan Kašpar, Paolo Fornasiero, Mauro Graziani, Bulk reduction and oxygen migration in the ceria-based oxides Chemistry of Materials. ,vol. 12, pp. 677- 681 ,(2000) , 10.1021/CM991089E
Guangshe Li, Richard L. Smith, Hiroshi Inomata, Synthesis of Nanoscale Ce1-xFexO2 Solid Solutions via a Low-Temperature Approach Journal of the American Chemical Society. ,vol. 123, pp. 11091- 11092 ,(2001) , 10.1021/JA016502+