Electrocatalytic oxidation of methane to C{sub 2} hydrocarbons using an Li{sup +} ion conductor

Journal Article · Mon May 01 04:00:00 EDT 1995 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.2048653· OSTI ID:63172

Hibino, T; Masegi, A; Iwahara, H ^[1]

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1. Nagoya Univ. (Japan)

Attempts to convert methane into more valuable chemicals have mainly focused on dimerization reactions to yield C{sub 2} hydrocarbons (ethane and ethylene). The electrocatalytic oxidation of methane to ethane and ethylene has been carried out using an Li{sup +} ion conductor as a solid electrolyte. The electrochemical cell used was Au{vert_bar}(Li{sub 2}O){sub 0.17}(BaO){sub 0.07}(TiO{sub 2}){sub 0.76}{vert_bar}Au, and the experiments were conducted at 850 C with a mixture of 8.3% methane and 1.6% oxygen in argon. By applying an ac voltage of 3 V at a frequency of 10 Hz to the cell, the conversion of methane and the selectivity to C{sub 2} hydrocarbons were enhanced 2 and 1.5 times more than at the open circuit, respectively.

• Sponsoring Organization: USDOE
• OSTI ID: 63172
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 5 Vol. 142; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
10 SYNTHETIC FUELS
40 CHEMISTRY
BARIUM OXIDES
ELECTRIC POTENTIAL
ELECTROLYSIS
ETHYLENE
GOLD
IONIC CONDUCTIVITY
LITHIUM
LITHIUM OXIDES
METHANE
OPTIMIZATION
OXIDATION
SOLID ELECTROLYTES
SYNTHESIS
TITANIUM OXIDES