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Title: Aqueous nickel(II) hydroxycarbonate instead of nickel(0) colloids as precursors of stable Ni-silica based catalysts for the dry reforming of methane
Authors: Daoura, Oscar
Chawich, Ghenwa El
Boutros, Maya
Hassan, Nissrine El 
Massiani, Pascale
Ersen, Ovidiu
Baaziz, Walid
Launay, Franck
Affiliations: Department of Chemical Engineering 
Keywords: Aqueous colloids
Greener synthesis
Dry reforming of methane
Nickel hydroxycarbonates
Issue Date: 2020
Part of: Catalysis communications journal
Volume: 138
Start page: 1
End page: 5
Nickel(II) hydroxycarbonate colloids were synthesized in water by the reaction of nickel(II) with carbonate in the presence of hexadecyltrimethylammonium bromide. Then, they were dispersed onto SBA-15 affording, after calcination and reduction, a supported 3 wt% nickel(0) catalyst for the dry reforming of methane (DRM). This material, compared to reference ones obtained by impregnation, either by organic Ni(0) colloids or by aqueous nickel(II), was characterized by small nickel nanoparticles leading to improved activity and stability. Such use of aqueous nickel(II) hydroxycarbonate colloids instead of organic Ni(0) ones synthesized with harmful reagents is a new and a more efficient and environment-friendly approach.
DOI: 10.1016/j.catcom.2020.105953
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Chemical Engineering

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