Oxidation of residual methane from VNG vehicles over Co3O4-based catalysts: Comparison among bulk, Al2O3-supported and Ce-doped catalysts
作者： Andoni Choya , Beatriz de Rivas , Juan Ramón González-Velasco , Jose Ignacio Gutiérrez-Ortiz , Rubén López-Fonseca
DOI: 10.1016/J.APCATB.2018.06.050
关键词:
摘要: Abstract Cobalt oxide based catalysts with three different active phase configurations, namely bulk, alumina supported and cerium-doped Co3O4 samples were examined for the complete oxidation of methane under conditions similar to those found in exhaust VNG engines. The structural redox properties resulting determined by N2 adsorption-desorption, WDXRF, ICP-AES, X-Ray diffraction, temperature-programmed reactions, UV–vis-NIR DRS, XPS Raman spectroscopy. Alumina-supported (10–40%wt. Co) be less active, since strong interactions between highly detrimental these catalysts. On other hand, doping cerium (10%wt.) led an increased inherent activity distorting spinel lattice, which resulted improved enhanced mobility oxygen species within lattice. These also stable over a prolonged period time both dry humid (150 h).
sci-hub.se 参考文章(59)
S. Arnone, G. Bagnasco, G. Busca, L. Lisi, G. Russo, M. Turco, Catalytic combustion of methane over transition metal oxides. Natural Gas Conversion V, Proceedings ofthe 5th International Natural Gas Conversion Symposium,. ,vol. 119, pp. 65- 70 ,(1998) , 10.1016/S0167-2991(98)80409-6
Jinghuan Chen, Hamidreza Arandiyan, Xiang Gao, Junhua Li, Recent Advances in Catalysts for Methane Combustion Catalysis Surveys From Asia. ,vol. 19, pp. 140- 171 ,(2015) , 10.1007/S10563-015-9191-5
Thomas Varghese, K.P. Priyanka, K.K. Babitha, Boby Sabu, A. Sreedevi, Structural characterization and optical studies of CeO2 nanoparticles synthesized by chemical precipitation Indian Journal of Pure & Applied Physics. ,vol. 53, pp. 596- 603 ,(2015)
M. Romeo, K. Bak, J. El Fallah, F. Le Normand, L. Hilaire, XPS Study of the reduction of cerium dioxide Surface and Interface Analysis. ,vol. 20, pp. 508- 512 ,(1993) , 10.1002/SIA.740200604
I. Zacharaki, C.G. Kontoyannis, S. Boghosian, A. Lycourghiotis, Ch. Kordulis, Cobalt oxide supported on alumina catalysts prepared by various methods for use in catalytic afterburner of PEM fuel cell Catalysis Today. ,vol. 143, pp. 38- 44 ,(2009) , 10.1016/J.CATTOD.2008.09.026
Adi Setiawan, Eric M. Kennedy, Bogdan Z. Dlugogorski, Adesoji A. Adesina, Michael Stockenhuber, The stability of Co3O4, Fe2O3, Au/Co3O4 and Au/Fe2O3 catalysts in the catalytic combustion of lean methane mixtures in the presence of water Catalysis Today. ,vol. 258, pp. 276- 283 ,(2015) , 10.1016/J.CATTOD.2014.11.031
Tian-cun Xiao, Sheng-fu Ji, Hai-tao Wang, Karl S Coleman, Malcolm L.H Green, Methane combustion over supported cobalt catalysts Journal of Molecular Catalysis A-chemical. ,vol. 175, pp. 111- 123 ,(2001) , 10.1016/S1381-1169(01)00205-9
Stefano Di Pascoli, Aldo Femia, Tommaso Luzzati, Natural gas, cars and the environment. A (relatively) ‘clean’ and cheap fuel looking for users Ecological Economics. ,vol. 38, pp. 179- 189 ,(2001) , 10.1016/S0921-8009(01)00174-4
Dongsheng QIAO, Guanzhong LU, Yun GUO, Yanqin WANG, Yanglong GUO, Effect of water vapor on the CO and CH4 catalytic oxidation over CeO2-MOx (M=Cu, Mn, Fe, Co, and Ni) mixed oxide Journal of Rare Earths. ,vol. 28, pp. 742- 746 ,(2010) , 10.1016/S1002-0721(09)60192-7
Junhua Li, Xi Liang, Shicheng Xu, Jiming Hao, Catalytic performance of manganese cobalt oxides on methane combustion at low temperature Applied Catalysis B: Environmental. ,vol. 90, pp. 307- 312 ,(2009) , 10.1016/J.APCATB.2009.03.027