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    WaMn1 - aox Catalysts Synthesized by a One-Step Urea Co-precipitation Method for Selective Catalytic Reduction of NOx with NH3 at Low Temperatures

    Access Status
    Fulltext not available
    Authors
    Sun, W.
    Li, Xin Yong
    Zhao, Q.
    Tade, M.
    Liu, Shaomin
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Sun, W. and Li, X.Y. and Zhao, Q. and Tade, M. and Liu, S. 2016. WaMn1 - aox Catalysts Synthesized by a One-Step Urea Co-precipitation Method for Selective Catalytic Reduction of NOx with NH3 at Low Temperatures. Energy and Fuels. 30 (3): pp. 1810-1814.
    Source Title
    Energy and Fuels
    DOI
    10.1021/acs.energyfuels.5b02252
    ISSN
    0887-0624
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/14862
    Collection
    • Curtin Research Publications
    Abstract

    Selective catalytic reduction (SCR) of NOx with NH3 (NH3-SCR) at low temperatures is a promising technology for DeNOx (removal of NOx) as a result of its high NOx conversion, excellent selectivity, and broad application prospect. As a result of the remarkable activity under low temperature for SCR performance, Mn-based catalysts have attracted extensive attention. In this work, a series of WαMn1 – αOx (α = 0, 0.25, 0.33, 0.5, or 1) catalysts were synthesized by a one-step urea co-precipitation method and characterized by X-ray diffraction, Raman, X-ray photoelectron spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Thereamong, the W0.33Mn0.66Ox catalyst showed the highest NH3-SCR activity within a broad temperature range of 230–470 °C. In addition, the active Mn and W species were in highly amorphous or poorly crystalline states. It was revealed that the interaction of W and Mn increased the chemistry oxygen content of the catalysts, thus enhancing the low-temperature SCR performance.

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