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Preparation of alkali-resistant, Sil-1 encapsulated nickel catalysts for direct internal reforming-molten carbonate fuel cell

Paper ID Volume ID Publish Year Pages File Format Full-Text
51266 46837 2009 4 PDF Available
Title
Preparation of alkali-resistant, Sil-1 encapsulated nickel catalysts for direct internal reforming-molten carbonate fuel cell
Abstract

A thin layer of silicalite-1 zeolite membrane was grown on the surface of Ni/SiO2 and Ni/Al2O3 catalyst beads after seeding and secondary regrowth to create core–shell catalysts that are resistant to alkali poisoning from direct internal reforming-molten carbonate fuel cell (DIR-MCFC). The zeolite shell thickness was optimized to prevent poisoning and minimize diffusion resistance. An out-of-cell test was designed to simulate the fuel cell operating conditions, which showed that the new core–shell catalysts maintained a high activity similar to the original fresh catalyst in spite of the exposure to alkali vapor at high temperature. The conventional Ni/SiO2 and Ni/Al2O3 catalysts suffered higher than 80% decrease in activity for steam reforming of methane reaction (SRM).

Keywords
Core–shell catalyst; Nickel catalyst; Fuel cell; Methane steam reforming; Catalyst deactivation; Zeolite membrane
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Preparation of alkali-resistant, Sil-1 encapsulated nickel catalysts for direct internal reforming-molten carbonate fuel cell
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 14, 25 August 2009, Pages 1804–1807
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