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Plasma-assisted preparation of Ni/SiO2 catalyst using atmospheric high frequency cold plasma jet

Paper ID Volume ID Publish Year Pages File Format Full-Text
52106 46865 2008 5 PDF Available
Title
Plasma-assisted preparation of Ni/SiO2 catalyst using atmospheric high frequency cold plasma jet
Abstract

A novel plasma-assisted calcination and reduction (PC&R) method was employed to prepare novel Ni/SiO2 catalyst for methane reforming reaction. In the novel process, the precursor was first activated by atmospheric high frequency cold plasma jet for 10 min after drying in air, instead of long-time conventional calcination and thermal reduction. The novel catalyst prepared by this way exhibited an improved low-temperature activity for carbon dioxide reforming of methane, comparing to the conventional catalyst prepared without plasma treatment. With the molar ratio of CH4/CO2 at 4/6 and at the reaction temperature of 800 °C, the methane conversion and the CO2 conversion could reach 93% and 76%, respectively over the novel catalyst prepared by the PC&R method, meanwhile the yield of hydrogen was 93% and the yield of CO was 73%. The catalyst characterizations using XRD, TEM and BET analyses confirmed that the novel plasma-activated catalyst had smaller particle size, an enhanced dispersion and higher specific surface area.

Keywords
High frequency cold plasma jet; Plasma-assisted preparation; Carbon dioxide; Methane; Reforming; Nickel; Silica gel
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 6, 31 March 2008, Pages 1087–1091
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us