Journal
CATALYSIS COMMUNICATIONS
Volume 103, Issue -, Pages 96-100Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2017.10.002
Keywords
Selective catalytic reduction; NO; NH3; CeO2-MoO3-WO3/TiO2; Single step sol-gel method
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Funding
- National Natural Science Foundation of China [51506226]
- Natural Science Foundation of Shandong Province [ZR2015EM010]
- Fundamental Research Funds for Central Universities [15CX05005A]
- China Scholarship Council, China (CSC) [201706455013]
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A novel CeO2-MoO3-WO3/TiO2 (CMWT) catalyst was prepared by a single step sol-gel (SG) method. It exhibited 93.8%-98.9% of NO conversion at 275-450 degrees C and high tolerance to 10% H2O and 1000 ppm SO2 at a gas hourly space velocity (GHSV) of 90,000 h(-1). Superior SCR activity of CMWT catalyst could be attributed to the presence of more Ce3+ and chemisorbed oxygen, higher redox ability, stronger adsorption capacity of NH3 species and the strong interaction among ceria, molybdenum, tungsten and titania.
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