CO2 hydrogenation to methanol on Pd–Cu bimetallic catalysts with lower metal loadings

Xiao Jiang, Yang Jiao, Colton Moran, Xiaowa Nie, Yutao Gong, Xinwen Guo, Krista S. Walton, Chunshan Song

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

A series of Pd–Cu bimetallic catalysts with a wide range of total loadings (i.e., 2.4–18.7 wt%, Pd/(Pd + Cu) = 0.34 at at−1) were prepared and evaluated for CO2 hydrogenation to CH3OH (Methanol). A key observation is the retention of bimetallic promotion of CH3OH at lower metal loadings. Pd-Cu(2.4)/SiO2, which contains the lowest metal loading, yields ~1.6× more CH3OH than the commercial Cu-ZnO-Al2O3 catalyst with respect to metal-based space-time yield (STY) at 523 K and 4.1 MPa. However, an enhancement in CO production is realized. Combined with the characterization results, the size effect-surface alloy composition-catalytic performance relationship was discussed. This work provides insights in designing cost-effective Pd–Cu catalysts with lower metal loadings for CH3OH synthesis via CO2 hydrogenation.

Original languageEnglish (US)
Pages (from-to)10-14
Number of pages5
JournalCatalysis Communications
Volume118
DOIs
StatePublished - Jan 5 2019

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology

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