Analysis of Ni species formed on zeolites, mesoporous silica and alumina supports and their catalytic behavior in the dry reforming of methane
- 407 Downloads
The presented investigation is focused on the analysis of Ni species formed on microporous (zeolites MFI and FAU) and mesoporous materials (Al-MCM-41 and SBA-15) and alumina supports and their catalytic behavior in the dry reforming of methane. The paper lays emphasis on the relationship between the catalytic behavior of Ni-based catalysts and their textural/structural properties. Ni-based catalysts were prepared by wet impregnation (11 wt% of Ni) followed by calcination in air and reduction in hydrogen. The properties of Ni-based catalysts were also compared prior and after the catalytic tests. The critical role was played by the high value of the specific surface area and the high strength of the interaction between the Ni species and the support, which both determined the high dispersion and stability of metal Ni0 particles. Ni–Al–MCM-41 and Ni–SBA-15 showed the values of the conversion of CO2 and CH4 above 90% (stable during 12 h). Slightly lower values of the conversion of CO2 and CH4 were observed over Ni–Al2O3 (also stable during 12 h). In contrast to these materials, Ni–MFI and Ni–FAU exhibited the worse metallic Ni0 particles dispersion and very bad catalytic behavior.
KeywordsDry reforming Methane Nickel Catalysis Particle size
The authors gratefully thank to the European Social Fund in the Czech Republic for financial support of the project ‘Router’ Development of Research Teams at the University of Pardubice (Project No. CZ.1.07/2.3.00/30.0058). We also thank the Ministry of Science and Education of Spain for financial support (Projects ENE2011-24412 and CTQ2014-60524-R).
- 8.Zhang J, Zhang XF, Tu M, Liu WF, Liu HO, Qiu JS, Zhou L, Shao ZG, Ho HL, Yeung KL (2012) Preparation of core (Ni base)-shell (Silicalite-1) catalysts and their application for alkali resistance in direct internal reforming molten carbonate fuel cell. J Power Sources 198:14–22. doi: 10.1016/j.jpowsour.2011.09.070 CrossRefGoogle Scholar
- 14.Smoláková L, Kout M, Čapek L, Rodriguez-Gomez A, Gonzalez-delaCruz VM, Hromádko L, Caballero A (2016) Nickel catalyst with outstanding activity in the DRM reaction prepared by high temperature calcination treatment. Int J Hydrog Energy 41(20):8459–8469. doi: 10.1016/j.ijhydene.2016.03.161 CrossRefGoogle Scholar
- 20.Izquierdo U, Barrio VL, Bizkarra K, Gutierrez AM, Arraibi JR, Gartzia L, Banuelos J, Lopez-Arbeloa I, Cambra JF (2014) Ni and Rh-Ni catalysts supported on Zeolites L for hydrogen and syngas production by biogas reforming processes. Chem Eng J 238:178–188. doi: 10.1016/j.cej.2013.08.093 CrossRefGoogle Scholar
- 32.Liu DP, Quek XY, Cheo WNE, Lau R, Borgna A, Yang YH (2009) MCM-41 supported nickel-based bimetallic catalysts with superior stability during carbon dioxide reforming of methane: effect of strong metal-support interaction. J Catal 266(2):380–390. doi: 10.1016/j.jcat.2009.07.004 CrossRefGoogle Scholar
- 55.de Sousa FF, de Sousa HSA, Oliveira AC, Junior MCC, Ayala AP, Barros EB, Viana BC, Filho JM, Oliveira AC (2012) Nanostructured Ni-containing spinel oxides for the dry reforming of methane: effect of the presence of cobalt and nickel on the deactivation behaviour of catalysts. Int J Hydrog Energy 37(4):3201–3212. doi: 10.1016/j.ijhydene.2011.11.072 CrossRefGoogle Scholar