Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 5, 2015
Previous Article Next Article

Hydrogen production by the water-gas shift reaction using CuNi/Fe2O3 catalyst

Author affiliations

Abstract

Incorporation of both Cu and Ni together into the crystalline lattice of Fe2O3 results in a significant increase in the catalytic activity and also suppresses the methanation reaction in the high-temperature water-gas shift (HT-WGS) reaction. CuNi/Fe2O3 exhibited the highest CO conversion with negligible CH4 selectivity at the extremely high GHSV of 101 000 h−1 (XCO = 85% at 400 °C). The high activity of CuNi/Fe2O3 catalyst is mainly due to the increase in the lattice strain and the decrease in the binding energy of lattice oxygen. In addition, X-ray photoelectron spectroscopy (XPS) results provide direct evidence for the formation of surface CuNi alloy, which plays a critical role in suppressing the methanation reaction. The detailed characterization by powder X-ray diffraction (XRD), XPS, BET, and H2 temperature-programmed reduction (TPR) techniques was used to understand the role of dopants on host iron oxides in the enhancement of catalytic activity for HT-WGS reaction.

Graphical abstract: Hydrogen production by the water-gas shift reaction using CuNi/Fe2O3 catalyst

Back to tab navigation

Supplementary files

Publication details

The article was received on 02 Feb 2015, accepted on 24 Feb 2015 and first published on 24 Feb 2015


Article type: Paper
DOI: 10.1039/C5CY00173K
Citation: Catal. Sci. Technol., 2015,5, 2752-2760

  •   Request permissions

    Hydrogen production by the water-gas shift reaction using CuNi/Fe2O3 catalyst

    A. Jha, D. Jeong, J. Shim, W. Jang, Y. Lee, C. V. Rode and H. Roh, Catal. Sci. Technol., 2015, 5, 2752
    DOI: 10.1039/C5CY00173K

Search articles by author

Spotlight

Advertisements