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author:

Li, D. (Li, D..) [1] | Cai, Y. (Cai, Y..) [2] | Ding, Y. (Ding, Y..) [3] | Li, R. (Li, R..) [4] | Lu, M. (Lu, M..) [5] | Jiang, L. (Jiang, L..) [6]

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Scopus

Abstract:

Various Cu catalysts were prepared by the calcination and reduction of Cu-containing layered double hydroxides (LDHs) including Cu-Al LDHs, Cu-Mg-Al LDHs, Cu-Zn-Al LDHs, and Cu-Zn-Cr LDHs. The catalysts were characterized by using ICP, N2 physisorption, TG, SEM, XRD, H2-TPR, and N2O chemisorption, and tested for the water-gas shift (WGS) reaction at 453-623 K. The characterization results reveal the formation of LDHs on the as-synthesized precursors. Upon calcination and reduction, highly dispersed Cu nanoparticles, particularly for Cu/MgO/Al2O3, were formed. The Cu0 surface area and Cu dispersion was found to be Cu/MgO/Al2O3 > Cu/Al2O3 > Cu/ZnO/Al2O3 > Cu/ZnO/Cr2O3. The activity of the LDHs-derived Cu catalysts for WGS decreased in the order of Cu/MgO/Al2O3 ∼ Cu/ZnO/Al2O3 > Cu/ZnO/Cr2O3 > Cu/Al2O3. The high activity of Cu/MgO/Al2O3 was attributed to its high Cu0 surface area and Cu dispersion, while the interaction between metallic Cu and ZnO on Cu/ZnO/Al2O3 might be responsible for the WGS activity. Interestingly, the highly dispersed Cu metal particles on the Cu/MgO/Al2O3 catalyst seemed stable during the WGS reaction. © 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Keyword:

Cu catalyst; Hydrogen production; Layered double hydroxides; Water-gas shift reaction

Community:

  • [ 1 ] [Li, D.]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, Fuzhou, Fujian, 350002, China
  • [ 2 ] [Cai, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, Fuzhou, Fujian, 350002, China
  • [ 3 ] [Ding, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, Fuzhou, Fujian, 350002, China
  • [ 4 ] [Li, R.]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, Fuzhou, Fujian, 350002, China
  • [ 5 ] [Lu, M.]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, Fuzhou, Fujian, 350002, China
  • [ 6 ] [Jiang, L.]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, Fuzhou, Fujian, 350002, China

Reprint 's Address:

  • [Jiang, L.]National Engineering Research Center of Chemical Fertilizer Catalyst (NERC-CFC), School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, China

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Source :

International Journal of Hydrogen Energy

ISSN: 0360-3199

Year: 2015

Issue: 32

Volume: 40

Page: 10016-10025

3 . 2 0 5

JCR@2015

8 . 1 0 0

JCR@2023

ESI HC Threshold:183

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 53

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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