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Core-shell structured iron nanoparticles for the generation of COx-free hydrogen via ammonia decomposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
51647 46849 2010 5 PDF Available
Title
Core-shell structured iron nanoparticles for the generation of COx-free hydrogen via ammonia decomposition
Abstract

The iron nanoparticles that are encapsulated by microporous and mesoporous silica shells were synthesized for the generation of COx-free hydrogen through the catalytic decomposition of ammonia. The encapsulated iron nanoparticles show excellent catalytic activity, giving 100% ammonia conversion in the 650–670 °C range. The core-shell structured catalysts are highly stable under the adopted reaction conditions owing to the stable silica shells that effectively prevent aggregation of iron nanoparticles. In contrast, the naked iron nanoparticles deactivated gradually at 670 °C and lost 18% ammonia conversion in a period of 63 h.

Keywords
Core-shell structure; Iron nanoparticles; Silica; COx-free hydrogen; Ammonia decomposition
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Core-shell structured iron nanoparticles for the generation of COx-free hydrogen via ammonia decomposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 5, 25 January 2010, Pages 368–372
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