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Bimetallic Ni-Rh catalysts with low amounts of Rh for the steam and autothermal reforming of n-butane for fuel cell applications ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
42176 45913 2010 8 PDF Available
Title
Bimetallic Ni-Rh catalysts with low amounts of Rh for the steam and autothermal reforming of n-butane for fuel cell applications ☆
Abstract

Mono-metallic nickel and rhodium catalysts and bimetallic Ni-Rh catalysts supported on La-Al2O3, CeZrO2 and CeMgOx were prepared and evaluated for catalyzing the steam and autothermal reforming of n-butane. The binary Ni-Rh supported on La-Al2O3 catalysts with low weight loading of rhodium exhibited higher H2 yields than Ni or Rh alone. The Ni-Rh/CeZrO2 catalyst exhibited higher performance and no coke formation, compared to the same metals on other supports. A NiAl2O4 spinel phase was obtained on all Ni and Ni-Rh catalysts supported on La-Al2O3. The presence of rhodium stabilized the spinel phase as well as NiOx species upon reforming while Ni alone was mostly reduced into metallic species. Extended X-ray absorption fine-structure analysis showed evidence of Ni-Rh alloy during preparation and even further after an accelerated aging at 900 °C in a H2/H2O atmosphere.

Graphical abstractMono-metallic Ni and Rh catalysts and bimetallic Ni-Rh catalysts supported on La-Al2O3, were prepared and evaluated for catalyzing the reforming of n-butane. Extended X-ray absorption fine-structure analysis showed evidence of Ni-Rh alloy during preparation and after 150 h of autothermal reforming, which resulted in higher H2 yields than Ni or Rh alone.Figure optionsDownload full-size imageDownload high-quality image (101 K)Download as PowerPoint slide

Keywords
Rh; Ni; Ceria; Alumina; Reforming; Butane; Coke; TPR; EXAFS; SEM
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Bimetallic Ni-Rh catalysts with low amounts of Rh for the steam and autothermal reforming of n-butane for fuel cell applications ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 379, Issues 1–2, 15 May 2010, Pages 121–128
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
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Any Questions? feel free to contact us