A Perspective on the Selective Catalytic Reduction (SCR) of NO with NH3 by Supported V2O5 –WO3/TiO2 Catalysts

Lai, Jun-Kun; Wachs, Israel E.

doi:10.1021/acscatal.8b01357

Title: A Perspective on the Selective Catalytic Reduction (SCR) of NO with NH₃ by Supported V₂O₅ –WO₃/TiO₂ Catalysts

Journal Article · 03 June 2018 · ACS Catalysis

DOI: https://doi.org/10.1021/acscatal.8b01357 · OSTI ID:1454677

Lai, Jun-Kun ^[1];

^[2]

Lehigh Univ., Bethlehem, PA (United States). Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical and Biomolecular Engineering; Lehigh University
Lehigh Univ., Bethlehem, PA (United States). Operando Molecular Spectroscopy & Catalysis Laboratory, Department of Chemical and Biomolecular Engineering

We report the selective catalytic reduction (SCR) of NO_x with NH₃ to harmless N₂ and H₂O plays a crucial role in reducing highly undesirable NO_x acid gas emissions from large utility boilers, industrial boilers, municipal waste plants, and incinerators. The supported V₂O₅ –WO₃/TiO₂ catalysts have become the most widely used industrial catalysts for these SCR applications since introduction of this technology in the early 1970s. Lastly, this Perspective examines the current fundamental understanding and recent advances of the supported V₂O₅ –WO₃/TiO₂ catalyst system: (i) catalyst synthesis, (ii) molecular structures of titaniasupported vanadium and tungsten oxide species, (iii) surface acidity, (iv) catalytic active sites, (v) surface reaction intermediates, (vi) reaction mechanism, (vii) ratedetermining- step, and (viii) reaction kinetics.

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Research Organization:: Energy Frontier Research Centers (EFRC) (United States). Center for Understanding and Control of Acid Gas-induced Evolution of Materials for Energy (UNCAGE-ME); Lehigh Univ., Bethlehem, PA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: SC0012577

OSTI ID:: 1454677

Journal Information:: ACS Catalysis, Journal Name: ACS Catalysis Vol. 8; ISSN 2155-5435

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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Title: A Perspective on the Selective Catalytic Reduction (SCR) of NO with NH3 by Supported V2O5 –WO3/TiO2 Catalysts

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Title: A Perspective on the Selective Catalytic Reduction (SCR) of NO with NH₃ by Supported V₂O₅ –WO₃/TiO₂ Catalysts