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Issue 74, 2015
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Hydrogen production by aqueous-phase reforming of ethylene glycol over a Ni/Zn/Al derived hydrotalcite catalyst

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Abstract

Ni/Zn/Al hydrotalcites (Ni/Zn/Al-HT) with different Ni/Zn ratios have been prepared by a coprecipitation method. The properties and microstructure of Ni/Zn/Al-HT precursors and derived catalysts were characterized by X-ray diffraction (XRD), H2-temperature programmed reduction (TPR), N2 physical adsorption analysis (BET), scanning electron microscopy (SEM) and particle size distribution. The results exhibited that the as-prepared samples consisted of a hydrotalcite phase and a ZnO phase, and Zn2+ was introduced into the layers. At the ratio of Ni/Zn = 1, the ZnAl2O4 phase emerged after calcination; Ni still remained in its original state after reaction, and ZnO always existed during the whole process. In aqueous-phase reforming (APR) of ethylene glycol, the H2 production rate over Ni/Zn/Al-HT was high, and the selectivity of H2 can almost reach 100% with a high conversion rate exceeding 99%.

Graphical abstract: Hydrogen production by aqueous-phase reforming of ethylene glycol over a Ni/Zn/Al derived hydrotalcite catalyst

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Publication details

The article was received on 21 Apr 2015, accepted on 01 Jul 2015 and first published on 01 Jul 2015


Article type: Paper
DOI: 10.1039/C5RA07184D
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RSC Adv., 2015,5, 60128-60134

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    Hydrogen production by aqueous-phase reforming of ethylene glycol over a Ni/Zn/Al derived hydrotalcite catalyst

    G. Chen, N. Xu, X. Li, Q. Liu, H. Yang and W. Li, RSC Adv., 2015, 5, 60128
    DOI: 10.1039/C5RA07184D

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