Natural Kaolin-Based Ni Catalysts for CO<sub>2</sub> Methanation: On the Effect of Ce Enhancement and Microwave-Assisted Hydrothermal Synthesis
Kritchakorn Aimdate, Atthapon Srifa, Wanida Koo-amornpattana, Chularat Sakdaronnarong, Wantana Klysubun, Sirapassorn Kiatphuengporn, Suttichai Assabumrungrat, Suwimol Wongsakulphasatch, Watchareeya Kaveevivitchai, Masao Sudoh, Ryo Watanabe, Choji Fukuhara, Sakhon Ratchahat
Abstract
and high oxygen vacancies. However, it was found that the catalyst prepared by microwave-assisted synthesis and Ce promotion proved to be the optimum catalyst in this study. Therefore, the present work demonstrated the potential to synthesize a nickel-based catalyst with improved catalytic activities by adding a small amount of Ce as a catalytic promoter and employing microwave irradiation for improving the Ni dispersion.
Topics & Concepts
MethanationCatalysisSubstitute natural gasMaterials scienceCrystalliteSelectivityScanning electron microscopeHydrothermal circulationChemical engineeringMicrowaveHydrothermal synthesisNuclear chemistryChemistrySyngasMetallurgyOrganic chemistryComposite materialQuantum mechanicsPhysicsEngineeringCatalysts for Methane ReformingCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions