完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Liu, Rong | en_US |
dc.contributor.author | Ji, Lingchen | en_US |
dc.contributor.author | Xu, Yifan | en_US |
dc.contributor.author | Ye, Fei | en_US |
dc.contributor.author | Jia, Feng | en_US |
dc.date.accessioned | 2017-04-21T06:55:10Z | - |
dc.date.available | 2017-04-21T06:55:10Z | - |
dc.date.issued | 2016-09-14 | en_US |
dc.identifier.issn | 0884-2914 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1557/jmr.2016.283 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/134231 | - |
dc.description.abstract | MnOx-CeO2/t-ZrO2 catalyst was prepared by impregnation of nanotetragonal zirconia. The NO conversion of 5 wt% MnOx-CeO2/t-ZrO2 catalyst was 68.1% at 100 degrees C while that of 30 wt% MnOx-CeO2/t-ZrO2 catalyst was 97.4%. The x-ray diffraction, Brunner-Emmet-Teller measurements (BET), and H-2-TPR showed surface properties of the prepared catalysts were good for selective catalytic reduction reactions. X-ray photoelectron spectroscopy analysis indicated that Mn4+ and Ce4+ oxidation states were predominant on the surface of the catalyst and so was lattice oxygen which was conducive to Lewis acid sites. NH3-TPD test results demonstrated that Lewis acid sites are predominant on the surface of catalyst. The presence of SO2 reduced the catalyst activity. The realized conversion dramatically decreased to 47% from nearly 100% after 8 h. Characterization of fresh and spent catalysts indicated the deterioration of active component and deposition of NH4HSO4 or (NH4)(2)SO4 contribute to SO2 poisoning. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | tetragonal zirconia | en_US |
dc.subject | MnOx-CeO2 | en_US |
dc.subject | t-ZrO2 catalyst | en_US |
dc.subject | catalytic activity | en_US |
dc.subject | SO2 poisoning mechanism | en_US |
dc.subject | low-temperature SCR | en_US |
dc.title | Catalytic performance and SO2 tolerance of tetragonal-zirconia-based catalysts for low-temperature selective catalytic reduction | en_US |
dc.identifier.doi | 10.1557/jmr.2016.283 | en_US |
dc.identifier.journal | JOURNAL OF MATERIALS RESEARCH | en_US |
dc.citation.volume | 31 | en_US |
dc.citation.issue | 17 | en_US |
dc.citation.spage | 2590 | en_US |
dc.citation.epage | 2597 | en_US |
dc.contributor.department | 環境工程研究所 | zh_TW |
dc.contributor.department | Institute of Environmental Engineering | en_US |
dc.identifier.wosnumber | WOS:000384304100004 | en_US |
顯示於類別: | 期刊論文 |