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Issue 6, 2001
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Characterisation of the active copper species for the NOx removal on Cu/Mg/Al mixed oxides derived from hydrotalcites: an in situ XPS/XAES study

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Abstract

In situ X-ray photoelectron spectroscopy was used to characterise Cu/Mg/Al mixed oxides derived from hydrotalcites (catalyst used for the NOx removal reaction). The active sites are the copper centres: (i) Cu(0) for NO decomposition and (ii) Cu(0) and/or Cu(I) for NO reduction with a hydrocarbon. The ability of these materials to redisperse the copper active sites without destroying the structure of the material makes them different from other catalysts such as zeolites, and is essential for suitable catalytic behaviour at high temperatures.

Graphical abstract: Characterisation of the active copper species for the NOx removal on Cu/Mg/Al mixed oxides derived from hydrotalcites: an in situ XPS/XAES study

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Publication details

The article was received on 15 Nov 2000, accepted on 22 Mar 2001 and first published on 30 Apr 2001


Article type: Paper
DOI: 10.1039/B009166A
Citation: J. Mater. Chem., 2001,11, 1675-1680
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    Characterisation of the active copper species for the NOx removal on Cu/Mg/Al mixed oxides derived from hydrotalcites: an in situ XPS/XAES study

    F. Márquez, A. E. Palomares, F. Rey and A. Corma, J. Mater. Chem., 2001, 11, 1675
    DOI: 10.1039/B009166A

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