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One-pot synthesis of Ni-nanoparticle-embedded mesoporous titania/silica catalyst and its application for CO2-reforming of methane

Paper ID Volume ID Publish Year Pages File Format Full-Text
52090 46865 2008 6 PDF Available
Title
One-pot synthesis of Ni-nanoparticle-embedded mesoporous titania/silica catalyst and its application for CO2-reforming of methane
Abstract

Ni-nanoparticle-embedded mesoporous titania/silica catalyst was successfully synthesized in a one-pot process using homogeneous impregnation in sol–gel-derived titanium-silica gel, without any other organic additives and/or templating agents. The catalyst with NiO loading of 10 wt% and TiO2/SiO2 (wt) of 50:50 is highly catalytic active and stable for CO2 reforming of methane and its physicochemical properties were investigated by means of BET, H2-TPR, XRD, TEM and TG/DTA techniques, respectively. Under the condition of an atmospheric pressure at 850 °C and a gas hour space velocity (GHSV) of 1.8×104mlh-1gcat-1, the conversion of CH4 and CO2 over 10 (wt%) NiO/TiO2–SiO2 (50:50) catalyst remained almost constant, at about 88% and 97%, for 30 h, respectively. The high activity and stability are attributed to the strong metal-support interactions, such as in Ni2.44Ti0.72Si0.07O4.

Keywords
Ni/TiO2–SiO2 catalyst; Sol–gel; CO2-reforming of methane
First Page Preview
One-pot synthesis of Ni-nanoparticle-embedded mesoporous titania/silica catalyst and its application for CO2-reforming of methane
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 6, 31 March 2008, Pages 995–1000
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis