Angewandte Chemie - International Edition
Angewandte Chemie - International Edition
4 years ago

Conversion of Methane into Methanol and Ethanol over Nickel Oxide on Ceria–Zirconia Catalysts in a Single Reactor

Conversion of Methane into Methanol and Ethanol over Nickel Oxide on Ceria–Zirconia Catalysts in a Single Reactor
Libor Kovarik, Yasmeen F. Belhseine, Matthew M. Yung, Chukwuemeka Okolie, Eli Stavitski, Yimeng Lyu, Carsten Sievers, Mark H. Engelhard
The conversion of methane into alcohols under moderate reaction conditions is a promising technology for converting stranded methane reserves into liquids that can be transported in pipelines and upgraded to value-added chemicals. We demonstrate that a catalyst consisting of small nickel oxide clusters supported on ceria–zirconia (NiO/CZ) can convert methane to methanol and ethanol in a single, steady-state process at 723 K using O2 as an abundantly available oxidant. The presence of steam is required to obtain alcohols rather than CO2 as the product of catalytic combustion. The unusual activity of this catalyst is attributed to the synergy between the small Lewis acidic NiO clusters and the redox-active CZ support, which also stabilizes the small NiO clusters. Controlled oxidation: Methanol and ethanol are produced continuously from methane and oxygen in a single reaction over a catalyst consisting of NiO clusters on ceria–zirconia. Oxygen is the abundantly available oxidant for this reaction and the presence of steam ensures the production of alcohols as opposed to products of the complete combustion of methane.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201704704

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