Journal
APPLIED CATALYSIS A-GENERAL
Volume 427, Issue -, Pages 43-48Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2012.03.028
Keywords
Selective catalytic reduction; Carbon nanotubes; Iron-copper oxides; NO oxidation
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Funding
- Environmentally Sustainable Management of Medical Wastes in China [C/V/S/10/251]
- National Natural Foundation of Zhejiang Province, China [Z4080070]
- Foundation of Science and Technology Bureau of Zhejiang Province, China [2008C21057, 2009C34003]
- Fundamental Research Funds for the Central Universities [2010QNA4005]
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Activity of iron-copper oxides supported on TiO2 and carbon nanotubes (CNTs) for low-temperature selective catalytic reduction of NO by NH3 in the presence of oxygen was investigated. The addition of FeOX and CNTs synergistically promoted the NO conversion through the adsorption of NO and NH3 and the catalytic oxidation of NO to NO2. NO2 adsorbed on the surface of the catalysts was found to be essential for NO reduction at low temperature, and approximately 90% NO conversion could be achieved at reaction temperature as low as 150 degrees C. Moreover, it was found that the deactivation caused by H2O could be recovered after H2O was switched off, while the deactivation caused by SO2 was dependent on the reaction temperature. (C) 2012 Elsevier B.V. All rights reserved.
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