Mechanochemical Effect in Mixing Sponge Copper with Amorphous ZrO2 Creates Effective Active Sites for Methanol Synthesis by CO2 Hydrogenation

Kazumasa Oshima, Yuka Honma, Kazuya Kinoshita, Zhiming Gao, Tetsuo Honma, Shohei Tada, Shigeo Satokawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

For efficient methanol synthesis by CO2 hydrogenation, catalysts prepared by mixing sponge copper and amorphous ZrO2 were investigated. The commercial sponge copper itself exhibited catalytic activity for methanol synthesis by CO2 hydrogenation. The sponge copper mixed with amorphous ZrO2 in a mortar showed higher catalytic activity. Moreover, both CO2 conversion and methanol selectivity were enhanced by wet milling using a planetary ball mill. Taking into consideration the structure, we found a mechanochemical interaction between the sponge copper and amorphous ZrO2 by wet milling. These results showed that the strong interaction between the sponge copper and amorphous ZrO2 caused by the mechanochemical treatment creates effective sites for methanol synthesis by CO2 hydrogenation.

Original languageEnglish
Pages (from-to)8155-8162
Number of pages8
JournalJournal of Physical Chemistry C
Volume125
Issue number15
DOIs
Publication statusPublished - Apr 22 2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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