Methane Synthesis on Nickel by a Solid-State Ionic Method

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 gas-catalyst interface by imposing a suitable voltage drop ac...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1983-02, Vol.219 (4587), p.967-969
Main Authors: Gur, Turgut M., Huggins, Robert A.
Format: Article
Language:English
Subjects:
Alternative energy sources
Carbon dioxide
Catalysts
Electric potential
Electrodes
Electrolytes
Methanation
Methane
Oxides
Oxygen
Renewable energy
Solid electrolytes
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Summary: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 gas-catalyst 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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.219.4587.967