Optimization of Redox and Catalytic Performance of LaFeO 3 Perovskites: Synthesis and Physicochemical Properties
作者： Anees A Ansari , Naushad Ahmad , Manawwer Alam , Syed F Adil , Mohamed E Assal
DOI: 10.1007/S11664-019-07216-4
关键词:
摘要: La1−xCexFeO3 perovskites were synthesized through a citric-acid assisted co-precipitation process. X-ray diffraction, transmission electron microscopy, energy dispersive x-ray analysis, thermogravimetric UV/Vis absorption spectroscopy, Fourier transform infrared photoelectron and an N2-adsorption–desorption technique applied for characterization of the perovskites. The analysis exhibited highly purified single-phase orthorhombic nanocrystals. loading Ce improved specific surface area affects thermal stability along with O2 desorption characteristics. BET textural high concentration Ce-ion-doped LaFeO3 perovskite revealed relatively respect to low doped perovskites, indicating homogeneous dispersion ions within crystal matrix. oxidation states trivalent La, Fe, O, C in all identified XPS study. redox behavior was examined using temperature program reduction/oxidation techniques. La0.95Ce0.05FeO3 best redox, catalytic, reusability performances among prepared catalysts, as by TPR/TPO, BET, catalytic activity analyses.
springer.com
harvard.edu
sci-hub.se 参考文章(56)
Kenji Tabata, Yuka Hirano, Eiji Suzuki, XPS studies on the oxygen species of LaMn1−xCuxO3+λ Applied Catalysis A: General. ,vol. 170, pp. 245- 254 ,(1998) , 10.1016/S0926-860X(98)00062-3
Anees A. Ansari, J. Labis, Manawwer Alam, Shahid M. Ramay, Naushad Ahmad, Asif Mahmood, Physicochemical and Redox Characteristics of Fe Ion‐doped CeO2 Nanoparticles Journal of The Chinese Chemical Society. ,vol. 62, pp. 925- 932 ,(2015) , 10.1002/JCCS.201500195
J. Tyler Mefford, William G. Hardin, Sheng Dai, Keith P. Johnston, Keith J. Stevenson, Anion charge storage through oxygen intercalation in LaMnO3 perovskite pseudocapacitor electrodes Nature Materials. ,vol. 13, pp. 726- 732 ,(2014) , 10.1038/NMAT4000
Chao-Qiu Chen, Wei Li, Chang-Yan Cao, Wei-Guo Song, Enhanced catalytic activity of perovskite oxide nanofibers for combustion of methane in coal mine ventilation air Journal of Materials Chemistry. ,vol. 20, pp. 6968- 6974 ,(2010) , 10.1039/C0JM01320J
Xin Liang, Xun Wang, Yuan Zhuang, Biao Xu, Simin Kuang, Yadong Li, Formation of CeO2−ZrO2Solid Solution Nanocages with Controllable Structures via Kirkendall Effect Journal of the American Chemical Society. ,vol. 130, pp. 2736- 2737 ,(2008) , 10.1021/JA7109629
Saikat Khamarui, Yasmin Saima, Radha M. Laha, Subhadeep Ghosh, Dilip K. Maiti, Functionalised Mn VI -nanoparticles: an advanced high-valent magnetic catalyst Scientific Reports. ,vol. 5, pp. 8636- 8636 ,(2015) , 10.1038/SREP08636
Yue Peng, Wenzhe Si, Junhua Li, John Crittenden, Jiming Hao, Experimental and DFT studies on Sr-doped LaMnO3 catalysts for NOx storage and reduction Catalysis Science & Technology. ,vol. 5, pp. 2478- 2485 ,(2015) , 10.1039/C5CY00073D
M.A. Soria, P. Pérez, S.A.C. Carabineiro, F.J. Maldonado-Hódar, A. Mendes, Luis M. Madeira, Effect of the preparation method on the catalytic activity and stability of Au/Fe2O3 catalysts in the low-temperature water–gas shift reaction Applied Catalysis A-general. ,vol. 470, pp. 45- 55 ,(2014) , 10.1016/J.APCATA.2013.10.034
P. Ciambelli, S. Cimino, S. De Rossi, L. Lisi, G. Minelli, P. Porta, G. Russo, AFeO3 (A=La, Nd, Sm) and LaFe1−xMgxO3 perovskites as methane combustion and CO oxidation catalysts: structural, redox and catalytic properties Applied Catalysis B-environmental. ,vol. 29, pp. 239- 250 ,(2001) , 10.1016/S0926-3373(00)00215-0
M. Alifanti, J. Kirchnerova, B. Delmon, Effect of substitution by cerium on the activity of LaMnO3 perovskite in methane combustion Applied Catalysis A-general. ,vol. 245, pp. 231- 243 ,(2003) , 10.1016/S0926-860X(02)00644-0