Copper-based Perovskite Design and Its Performance in CO2 Hydrogenation to Methanol

Feng Li

A chapter in Perovskite Materials - Synthesis, Characterisation, Properties, and Applications from IntechOpen

Abstract: Three series of perovskite-type catalysts, i.e., La-M-Mn-Cu-O (M = Mg, Y, Zn, Ce), La-M-Cu-Zn-O (M = Ce, Mg, Zr, Y), and La-Mn-Zn-Cu-O, were designed and applied in CO2 hydrogenation to methanol. The materials were characterized by XRD, N2-adsorption, N2O-adsorption, ICP-OES, XPS, and TPD techniques. Perovskite structures were observed and the ''metal on oxide'' could be realized via reduction. Upon the introduction of the fourth elements, more structure defects, smaller particles, higher Cu dispersion, larger amount of hydrogen desorption at low temperature, and more amount of basic sites were obtained. The selectivity for methanol and the TOF values were higher for the catalysts derived from perovskite-type precursors. The catalytic performance was related to Cu?+ and/or Cu0 species, low-temperature H2 adsorption on the unit, and the weak basic sites.

Keywords: Perovskite; Copper; CO2; Methanol; Hydrogenation (search for similar items in EconPapers)
JEL-codes: Q20 Q40 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:ito:pchaps:98913

DOI: 10.5772/61520

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