Modification of palladium-based catalysts by chalcogenes for direct methanol fuel cells

Autor:	Myoung-Ki Min, Alexey Serov, Chan Kwak, Geun-Seok Chai, Sung-Yong Cho, Kie Hyun Nam, Sang-Il Han
Jazyk:	angličtina
Rok vydání:	2007
Předmět:	inorganic chemicals chemistry.chemical_element Mineralogy Primary alcohol Sulfur Catalysis lcsh:Chemistry Chalcogen chemistry.chemical_compound chemistry Transition metal lcsh:Industrial electrochemistry lcsh:QD1-999 Electrochemistry Methanol Methanol fuel Nuclear chemistry Palladium lcsh:TP250-261
Zdroj:	Electrochemistry Communications, Vol 9, Iss 8, Pp 2041-2044 (2007)
ISSN:	1388-2481
Popis:	Palladium-based catalysts, such as PdSx/C and PdSex/C, have been developed as oxygen reduction catalysts for direct methanol fuel cells. Pd/C catalysts containing chalcogens have been synthesized and tested for oxygen reduction and the results have been analyzed based on changes in the palladium phase. Selenium addition to the catalyst promotes the oxygen reduction due to the modification of the palladium surface. However, sulfur reduces the oxygen reduction activity to a great extent as a result of semi-amorphous palladium phase formation. Both PdSx/C and PdSex/C are highly methanol tolerant. Keywords: Palladium, Sulfur, Selenium, Fuel cells
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec57cd21c861ec945cb053f12f45a454 http://www.sciencedirect.com/science/article/pii/S1388248107002275 Zobrazit plný text záznamu Full Text from ScienceDirect