High-Performance MaZrOx (Ma = Cd, Ga) Solid-Solution Catalysts for CO2 Hydrogenation to Methanol

Jijie Wang, Chizhou Tang, Guanna Li, Zhe Han, Zelong Li, Hailong Liu, Feng Cheng, Can Li

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Abstract

Hydrogenation of CO2 to methanol utilizing the hydrogen from renewable energy sources offers a promising way to reduce CO2 emissions through the CO2 utilization as a carbon source. However, it is a challenge to convert CO2 to methanol with high activity and high methanol selectivity. Herein, we report a class of metal-oxide solid-solution catalysts: MaZrOx (Ma = Cd, Ga), which show a methanol selectivity up to 80% with the CO2 single pass conversion reaching 4.3%-12.4% under the reaction conditions of H2/CO2 = 3/1, 24※000 h-1, 5 MPa. Structural and electronic characterizations combined with denisty functional theory calculations suggest that the Ma and Zr components in MaZrOx (Ma = Cd, Ga) solid-solution catalysts show a strong synergetic effect, which enhances the H2 heterolytic dissociation and results in high activity and high methanol selectivity. The solid-solution catalyst with dual metal oxide components offers an approach for the selective hydrogenation of CO2 to chemicals.

Original languageEnglish
Pages (from-to)10253-10259
JournalACS Catalysis
Volume9
Issue number11
DOIs
Publication statusPublished - 2019

Keywords

  • CO hydrogenation
  • dual active sites
  • H heterolytic dissociation
  • methanol synthesis
  • solid solution catalyst

Fingerprint Dive into the research topics of 'High-Performance M<sub>a</sub>ZrO<sub>x</sub> (M<sub>a</sub> = Cd, Ga) Solid-Solution Catalysts for CO<sub>2</sub> Hydrogenation to Methanol'. Together they form a unique fingerprint.

Cite this