Effect of support conductivity of catalytic powder on electrocatalytic hydrogenation of phenol

Autor:	Paul Nkeng, Hugues Ménard, Anne Brisach-Wittmeyer, Dihourahouni Tountian, G. Poillerat
Rok vydání:	2008
Předmět:	Materials science Tin dioxide General Chemical Engineering Inorganic chemistry Oxide chemistry.chemical_element Conductivity Electrochemistry Catalysis law.invention chemistry.chemical_compound chemistry law Materials Chemistry Calcination Polarization (electrochemistry) Palladium
Zdroj:	Journal of Applied Electrochemistry. 39:411-419
ISSN:	1572-8838 0021-891X
DOI:	10.1007/s10800-008-9686-0
Popis:	Metallic nanoaggregates deposited on non-conductive oxides powders as catalysts have shown good efficiency in electrocatalytic hydrogenation (ECH). In this process, the polarization of the metallic nanoaggregates is very important. This polarization can be improved when the electrode material is conductive. Thus, the goal of this work was to study the effect of the conduction of the supported material on the ECH process. Tin dioxide was chosen as oxide because it can be obtained in non-conductive or conductive form by doping with fluorine. Palladium supported catalysts powders were prepared by the sol–gel method. These electrocatalysts were characterized by XRD, SEM, TGA/DSC, FTIR and electrical conductivity. The effects of temperature and time of calcination were also investigated. Comparison of non-conductive and conductive catalysts for ECH of phenol shows that conductive F-doped SnO2 increases the rate of electrohydrogenation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c81bb0ff0c35b88c73febb7348fc88cc https://doi.org/10.1007/s10800-008-9686-0 Zobrazit plný text záznamu Full text from SpringerLink