Carbon dioxide hydrogenation to methanol over multi-functional catalyst: effects of reactants adsorption and metal-oxide(s) interfacial area

Mei Kee Koh, Yee Jie Wong, Siang Piao Chai, Abdul Rahman Mohamed

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    24 Citations (Scopus)

    Abstract

    Copper-based catalysts with different metal-oxide(s) composition were synthesized and applied in CO2 hydrogenation to methanol. The metal component(s) (Cu, Zn and/or Mn) were dispersed on high surface area SBA-15. Correlations between the adsorption properties of catalysts and the catalytic performances reveal that a catalyst with both strong hydrogenation strength and moderate CO2 adsorption strength is crucial for achieving high CO2 conversion. Additionally, the availability of metal-oxide(s) interfacial area greatly enhances methanol selectivity. An adequate balance between H2 and CO2 adsorptions as well as metal-oxide(s) interfacial area were responsible for the high catalytic activity achieved in this study.

    Original languageEnglish
    Pages (from-to)156-165
    Number of pages10
    JournalJournal of Industrial and Engineering Chemistry
    Volume62
    DOIs
    Publication statusPublished - 25 Jun 2018

    Keywords

    • Adsorption properties
    • CO hydrogenation
    • Copper-based multi-component catalyst
    • Metal-oxide(s) interfaces
    • Methanol

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