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Facile fabrication of a highly active shell–core LaNi(Mg, Al)O3@Mg–Al catalyst for ethanol steam reforming

Paper ID Volume ID Publish Year Pages File Format Full-Text
54309 47005 2014 7 PDF Available
Title
Facile fabrication of a highly active shell–core LaNi(Mg, Al)O3@Mg–Al catalyst for ethanol steam reforming
Abstract

•The reconstruction of a hydrotalcite-derived oxide was applied.•A shell–core perovskite@hydrotalcite-derived oxide catalyst was prepared.•Perovskite phase can be observed on the sample calcined at temperatures ≥700 °C.•Excellent reactivities were achieved over the shell–core catalysts.

An idea of combining perovskite and hydrotalcite (HT)-derived oxides is explored and a shell–core perovskite@HT-derived oxide catalyst, i.e. LaNi(Mg, Al)@Mg–Al, is fabricated through the reconstruction of a HT-derived Mg–Al mixed oxide. Experimental results show that the reconstruction of the HT-like structure proceeds rapidly in a Ni2+–La3+ mixed nitrate solution, forming large flake-like sheets on the outer layer of the dipping particle. After calcination at temperatures ≥700 °C, perovskite phase with clear boundary is formed as the uniform shell layer of the catalyst. Further investigation confirms that the shell–core catalysts possess excellent activity and stability in ethanol steam reforming reaction.

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Keywords
Shell–core catalyst; Perovskite; Hydrotalcite; Reconstruction; Ethanol steam reforming
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Facile fabrication of a highly active shell–core LaNi(Mg, Al)O3@Mg–Al catalyst for ethanol steam reforming
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 233, 15 September 2014, Pages 31–37
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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