Electrocatalytic activity of non-precious metal catalyst Co–N/C toward oxygen reduction reaction

Autor:	Yu Jun Si, Hui Cai, Wei Yin, Chang Guo Chen
Rok vydání:	2010
Předmět:	inorganic chemicals biology Chemistry Inorganic chemistry Active site chemistry.chemical_element General Chemistry Carbon black Electrocatalyst Nitrogen Catalysis Metal chemistry.chemical_compound visual_art visual_art.visual_art_medium biology.protein Urea Cobalt
Zdroj:	Chinese Chemical Letters. 21:983-986
ISSN:	1001-8417
DOI:	10.1016/j.cclet.2010.03.030
Popis:	Metallic cobalt was deposited on acetylene black to synthesize a composite Co/C by chemical reduction method. A platinum-free electrocatalyst Co–N/C(8 0 0) for oxygen reduction reaction (ORR) was synthesized by mixing the composite Co/C with urea and heat-treating at 800 °C. The results from linear sweep voltammograms indicated that the Co–N/C(8 0 0) is active to ORR. The β-Co and cobalt oxides are not the active site of the catalyst Co–N/C. However, the existence of cobalt facilitated the modification of nitrogen to carbon black and led to the formation of active site of catalyst Co–N/C(8 0 0).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7cbac66dc8c60b429ebef56885a76110 https://doi.org/10.1016/j.cclet.2010.03.030 Zobrazit plný text záznamu Full Text from ScienceDirect