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Science 25 February 1983:
Vol. 219. no. 4587, pp. 967 - 969
DOI: 10.1126/science.219.4587.967
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Articles

Methane Synthesis on Nickel by a Solid-State Ionic Method

TURGUT M. GÜR 1 and ROBERT A. HUGGINS 1

1 Department of Materials Science and Engineering, Stanford University, Stanford, California 94305

The feasibility of electrochemically synthesizing methane by a Fischer-Tropsch type reaction by use of a solid oxide electrolyte has been demonstrated. This solid-state ionic approach provides in situ control of the oxygen activity at the gascatalyst interface by imposing a suitable voltage drop across an oxygen-conducting solid electrolyte from an external source. Methanation rates for hydrogen-carbon monoxide and hydrogen-carbon dioxide synthesis gas mixtures upon nickel electrodes showed substantial enhancement with the use of this technique, reaching values nearly two orders of magnitude higher than their intrinsic rates.

Submitted on August 23, 1982
Revised on November 5, 1982


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