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Catalytic ammonia decomposition for CO-free hydrogen generation over Ru/Cr2O3 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
40056 45843 2013 7 PDF Available
Title
Catalytic ammonia decomposition for CO-free hydrogen generation over Ru/Cr2O3 catalysts
Abstract

•Ru/Cr2O3 catalysts have shown good catalytic performance in ammonia decomposition.•Particle size and dispersion of Ru catalysts greatly influence catalytic activity.•Interstitial CrxNy compound is formed during ammonia decomposition.

Uniform and well-dispersed Ru nanoparticles with a diameter of 4–6 nm supported on chromium oxide (Cr2O3) nanoparticles have been prepared via the impregnation method. The catalytic activity of the Ru/Cr2O3 catalyst in ammonia decomposition and the rate of hydrogen generation are evaluated. The physical and chemical properties of Ru/Cr2O3 catalysts were characterized by N2 sorption, XRD, TEM, H2-TPR and XPS. The analysis data show that Ru nanoparticles are well dispersed on mesoporous Cr2O3 supports and have strong interactions with the Cr2O3 support. Ru/Cr2O3 catalysts show good catalytic performance. Complete ammonia decomposition was achieved at 600 °C even at high space velocity (30,000 ml/(h gcat)).

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Keywords
Ammonia decomposition; Ru-based catalysts; Hydrogen generation; Chromium oxide
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Catalytic ammonia decomposition for CO-free hydrogen generation over Ru/Cr2O3 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 467, 2 October 2013, Pages 246–252
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