Structure sensitivity of selective catalytic reduction of NO with propylene over Cu-doped Ti0.5Zr0.5O2-d catalysts
dc.contributor.author | Liu, J. | |
dc.contributor.author | Zhao, Q. | |
dc.contributor.author | Li, Xin Yong | |
dc.contributor.author | Chen, J. | |
dc.contributor.author | Zhang, D. | |
dc.date.accessioned | 2017-01-30T12:42:11Z | |
dc.date.available | 2017-01-30T12:42:11Z | |
dc.date.created | 2015-10-29T04:09:56Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Liu, J. and Zhao, Q. and Li, X.Y. and Chen, J. and Zhang, D. 2015. Structure sensitivity of selective catalytic reduction of NO with propylene over Cu-doped Ti0.5Zr0.5O2-d catalysts. Applied Catalysis B: Environmental. 165: pp. 519-528. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/24317 | |
dc.identifier.doi | 10.1016/j.apcatb.2014.10.038 | |
dc.description.abstract |
© 2014 Elsevier B.V. The structure sensitivity of selective catalytic reduction (SCR) of NO with propylene over Cu-doped Ti0.5Zr0.5O2-d catalysts was investigated systematically in a series of characterizations and in situ DRIFT spectroscopy. A Cu-doped Ti0.5Zr0.5O2-d catalyst with a hierarchical structure was fabricated successfully using a hydrothermal method (Hy-Sample), and shown to exhibit excellent SCR performance with high reaction rate and turnover frequency (TOF). The physico-chemical properties, mass transfer, and SCR activity of the catalyst depended on the preparation method. Another sample of Cu-doped Ti0.5Zr0.5O2-d catalyst prepared using a co-precipitation method (Co-Sample) exhibited a disordered, irregular morphology, whose SCR activity, as determined in a fixed bed reactor, was significantly lower than that of Hy-Sample. In comparison, Hy-Sample possessed an enhanced redox property, and its highly ordered morphology greatly promoted the generation of active sites, including the fine-dispersed CuO species and surface adsorbed oxygen. Consequently, NO and C3H6 were readily adsorbed and activated over Hy-Sample and induced the formation of important intermediates with high reactivity, such as isocyanate (-NCO) and cyanide (-CN) species. However, the activation capacity of Co-Sample toward reactants was very weak, and the sequential deficiency of N-containing organics could be the primary reason for the poor SCR activity of Co-Sample. | |
dc.publisher | Elsevier | |
dc.title | Structure sensitivity of selective catalytic reduction of NO with propylene over Cu-doped Ti0.5Zr0.5O2-d catalysts | |
dc.type | Journal Article | |
dcterms.source.volume | 165 | |
dcterms.source.startPage | 519 | |
dcterms.source.endPage | 528 | |
dcterms.source.issn | 0926-3373 | |
dcterms.source.title | Applied Catalysis B: Environmental | |
curtin.department | Department of Chemical Engineering | |
curtin.accessStatus | Fulltext not available |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |