Development of anodes for direct electrocatalytic oxidation of methane in solid oxide fuel cells

Autor:	Ian A. Proctor, R. Mark Ormerod, Amy L. Hopkin
Rok vydání:	2003
Předmět:	Materials science General Chemical Engineering Inorganic chemistry General Engineering Oxide General Physics and Astronomy chemistry.chemical_element Cermet Electrochemistry Methane Nickel chemistry.chemical_compound chemistry Methanizer General Materials Science Partial oxidation Syngas
Zdroj:	Ionics. 9:242-247
ISSN:	1862-0760 0947-7047
DOI:	10.1007/bf02375974
Popis:	Gold-doped nickel/zirconia and nickel/ceria cermet anodes incorporating different levels of gold have been prepared and studied as potential anodes for the direct electrocatalytic oxidation of methane in solid oxide fuel cells. The methane conversion activity and selectivity towards synthesis gas products of these anodes have been determined over a range of SOFC operating temperatures and methane/oxidant ratios, and compared with the corresponding undoped nickel cermet. The amount of carbon deposition has been determined using post-reaction temperature programmed oxidation. The influence of gold loading on the methane conversion activity, product selectivity and amount of carbon deposition has been determined. The addition of small amounts of gold to nickel cermets results in a dramatically increased tolerance to carbon deposition and a reduction in the activity of the anode and the selectivity towards partial oxidation compared to the corresponding undoped nickel cermet.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::18ed11f2ce0c7bba8ca21297aae9bd47 https://doi.org/10.1007/bf02375974 Zobrazit plný text záznamu Full text from SpringerLink