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Catalytic reduction of NO over in situ synthesized Ir/ZSM-5 monoliths

文献类型：期刊论文

作者Wang, AQ; Liang, DB; Xu, CH; Sun, XY; Zhang, T
刊名applied catalysis b-environmental
出版日期2001-08-01
卷号32期号:3页码:205-212
关键词Ir catalysts ZSM-5 monoliths lean-burn deNO(x) NO reduction
英文摘要the catalytic performance of ir-based catalysts was investigated for the reduction of no under lean-burn conditions over binderless ir/zsm-5 monoliths, which were prepared by a vapor phase transport (vpt) technique. the catalytic activity was found to be dependent not only on the ir content, but also on the zsm-5 loading of the monolith. with the decreasing of the ir content or the increasing of the zsm-5 loading of the monolith, no conversion increased. when the zsm-5 loading on the cordierite monolith was raised up to ca. 11% and the metal ir content was about 5 g/l, the no conversion reached its maximum value of 73% at 533 k and sv of 20 000 h(-1). furthermore, both the presence of 10% water vapor in the feed gas and the variation of space velocity of the reaction gases have little effect on the no conversion. a comparative test between ir/zsm-5 and cu/zsm-5, as well as the variation of the feed gas compositions, revealed that ir/zsm-5 is very active for the reduction of no by co under lean conditions, although it is a poor catalyst for the c3h8-scr process. this unique property of ir/zsm-5 makes it superior to the traditional three-way catalyst (twc) for no reduction under lean conditions. (c) 2001 elsevier science b.v. all rights reserved.
WOS标题词science & technology ; physical sciences ; technology
类目[WOS]chemistry, physical ; engineering, environmental ; engineering, chemical
研究领域[WOS]chemistry ; engineering
关键词[WOS]precious-metal catalysts ; lean-burn conditions ; selective reduction ; excess oxygen ; hydrocarbons ; zeolite ; oxide
收录类别SCI
原文出处true
语种英语
WOS记录号WOS:000169768200007
公开日期2010-11-30
源URL[http://159.226.238.44/handle/321008/84561]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Wang, AQ,Liang, DB,Xu, CH,et al. Catalytic reduction of NO over in situ synthesized Ir/ZSM-5 monoliths[J]. applied catalysis b-environmental,2001,32(3):205-212.
APA Wang, AQ,Liang, DB,Xu, CH,Sun, XY,&Zhang, T.(2001).Catalytic reduction of NO over in situ synthesized Ir/ZSM-5 monoliths.applied catalysis b-environmental,32(3),205-212.
MLA Wang, AQ,et al."Catalytic reduction of NO over in situ synthesized Ir/ZSM-5 monoliths".applied catalysis b-environmental 32.3(2001):205-212.

入库方式： OAI收割

来源：大连化学物理研究所

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