150448 20251204145007.0 doi 10.1016/j.jcou.2021.101740 sideral 125775 ART-2021-125775 eng Renda, S. (orcid)0000-0002-5926-5252 Biochar as support in catalytic CO2 methanation: Enhancing effect of CeO2 addition 2021 Access copy available to the general public Unrestricted Activated biochar obtained through slow pyrolysis and subsequent activation with CO2 was chosen as support in the synthesis of low Ni-content catalysts to be employed in CO2 methanation process. The main aim of this work was to obtain a more sustainable catalytic formulation compared to those proposed in literature. Biochar-supported catalyst resulted to be efficient in CO2 methanation, but with a relatively low selectivity toward methane. Support doping with CeO2 led to a remarkable increase in methane yield and in stability overtime. A maximum CH4 production was achieved with a CeO2 loading of 30 wt.%. Nevertheless, the lowest deactivation rate was observed for a support loaded with 50 wt.% of CeO2 Ceria promotes a faster activation of the CO2 molecule and a strengthens the Ni/support interactions, resulting in reduced active phase mobility and moderate sintering phenomena. The outcomes of this work were attractive for further studies related to the improvements in the catalyst stability. info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 8.321 2021 CHEMISTRY, MULTIDISCIPLINARY 36 / 179 = 0.201 2021 Q1 T1 ENGINEERING, CHEMICAL 16 / 142 = 0.113 2021 Q1 T1 1.392 2021 Process Chemistry and Technology 2021 Q1 Chemical Engineering (miscellaneous) 2021 Q1 11.3 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Di Stasi, C. Universidad de Zaragoza (orcid)0000-0001-5266-398X Manyà, J.J. Universidad de Zaragoza (orcid)0000-0002-0118-3254 Palma, V. 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 53 (2021), 101740 [9 pp.] J. CO2 util. Journal of CO2 Utilization 2212-9820 1079863 http://zaguan.unizar.es/record/150448/files/texto_completo.pdf Postprint 587669 http://zaguan.unizar.es/record/150448/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:150448 articulos driver 2025-12-04-14:45:25 ARTICLE