NiCl2 assisted synthesis of ordered mesoporous carbon and a new strategy for a binary catalyst

Autor:	Daojun Wang, Zhiyong Di, Dun Sun, Jianping He, Jianhua Zhou, Xiu Chen, Guiwang Zhao, Tao Wang
Rok vydání:	2008
Předmět:	Materials science Inorganic chemistry chemistry.chemical_element Nanoparticle General Chemistry Electrochemistry Catalysis Tetraethyl orthosilicate chemistry.chemical_compound Adsorption chemistry Chemical engineering Desorption Materials Chemistry Methanol Carbon
Zdroj:	Journal of Materials Chemistry. 18:5776
ISSN:	1364-5501 0959-9428
DOI:	10.1039/b811076j
Popis:	This work aims at enhancing metal-loading property of ordered mesoporous carbon (OMC) by a NiCl2 assisted synthesis. OMC containing Ni nanoparticles within the mesostructure has been synthesized using NiCl2 instead of HCl, which acts as a catalyst for the hydrolysis of tetraethyl orthosilicate (TEOS). The regularity of OMC is preserved. It also generates a binary catalyst comprised of these metallic Ni and microwave-reduced Pt nanoparticles. Electrochemical hydrogen adsorption/desorption has shown that electrochemically active surface area of Pt/OMC-NiCl2(15%) (78.5 m2 g−1) is three times greater than that of Pt/OMC-NiCl2(2%). Methanol electro-oxidation was used as a test reaction to evaluate the catalytic activity. It can easily yield a higher mass activity when the initial Ni content is around 10–15%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::926538905aa9e07ce033b642f5633701 https://doi.org/10.1039/b811076j Zobrazit plný text záznamu