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

Cheng-Shiuan Li, Gérôme Melaet, Walter T. Ralston, Kwangjin An, Christopher Brooks, Yifan Ye, Yi-Sheng Liu, Junfa Zhu, Jinghua Guo, Selim Alayoglu () and Gabor A. Somorjai ()
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Cheng-Shiuan Li: Department of Chemistry
Gérôme Melaet: Department of Chemistry
Walter T. Ralston: Department of Chemistry
Kwangjin An: Department of Chemistry
Christopher Brooks: Honda Research Institute USA Inc
Yifan Ye: Advanced Light Source, Lawrence Berkeley National Laboratory
Yi-Sheng Liu: Advanced Light Source, Lawrence Berkeley National Laboratory
Junfa Zhu: National Synchrotron Radiation Laboratory and Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China
Jinghua Guo: Advanced Light Source, Lawrence Berkeley National Laboratory
Selim Alayoglu: Lawrence Berkeley National Laboratory
Gabor A. Somorjai: Department of Chemistry

Nature Communications, 2015, vol. 6, issue 1, 1-5

Abstract: 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.

Date: 2015
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DOI: 10.1038/ncomms7538

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