High-performance hybrid oxide catalyst of ​manganese and ​cobalt for low-pressure ​methanol synthesis

High-performance hybrid oxide catalyst of ​manganese and ​cobalt for low-pressure ​methanol synthesis

Journal Article

Abstract

​​​Carbon dioxide capture and use as a carbon feedstock presents both environmental and industrial benefits. Here we report the discovery of a hybrid oxide catalyst comprising ​manganese oxide nanoparticles supported on mesoporous spinel ​cobalt oxide, which catalyses the conversion of ​carbon dioxide to ​methanol at high yields. In addition, carbon–carbon bond formation is observed through the production of ​ethylene. We document the existence of an active interface between ​cobalt oxide surface layers and ​manganese oxide nanoparticles by using X-ray absorption spectroscopy and electron energy-loss spectroscopy in the scanning transmission electron microscopy mode. Through control experiments, we find that the catalyst’s chemical nature and architecture are the key factors in enabling the enhanced ​methanol synthesis and ​ethylene production. To demonstrate the industrial applicability, the catalyst is also run under high conversion regimes, showing its potential as a substitute for current ​methanol synthesis technologies.

Details

PUBLISHED IN
Nature Communications 6, Article number: 6538
PUBLICATION DATE
10 de març 2015
AUTHORS
C. Li, G. Melaet, W. Ralston, K. An, C. Brooks, Y. Ye, Y. Liu, J. Zhu, J. Guo, S. Alayoglu, G. Somorjai