DICP OpenIR
DRIFTS study of NO-H-2 reaction over Pd/Al2O3 with excess oxygen
Yang, JB; Fu, OZ; Wu, DY; Wang, SD
KeywordDrifts No H-2 Pd/al2o3
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2004-04-20
DOI10.1016/j.apcatb.2003.11.017
Volume49Issue:1Pages:61-65
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordSELECTIVE CATALYTIC-REDUCTION ; PD CATALYSTS ; NO ; SPECTROSCOPY ; KINETICS ; PROPENE ; AMMONIA
AbstractPd (0.1 wt.%)/Al2O3 catalyst was found to be active for the selective NO reduction employing H-2 (NO conversion > 90%) under excess O-2 at low temperatures (110-190degreesC) with good N-2 selectivity (about 70%). The selectivity towards N2O was sensitive to the reaction conditions and decreased as the temperature was raised. The maximum selectivity to NH3 occurred at 190 degreesC. The selectivity to N2O was inhibited greatly by O-2 at low temperatures. Gaseous O-2 promoted the selectivity to N-2 as well as the generation of adsorbed NH species in comparison to the reactions without O-2. In situ diffuse reflectance IR spectroscopy (DRIFTS) measurements suggested that there was competition between H-2 and other adsorbed species such as nitrates and water at low temperatures, and the rate determining step may be the adsorption and activation of H-2 over the catalyst. (C) 2004 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000220939600006
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138434
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Yang, JB,Fu, OZ,Wu, DY,et al. DRIFTS study of NO-H-2 reaction over Pd/Al2O3 with excess oxygen[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2004,49(1):61-65.
APA Yang, JB,Fu, OZ,Wu, DY,&Wang, SD.(2004).DRIFTS study of NO-H-2 reaction over Pd/Al2O3 with excess oxygen.APPLIED CATALYSIS B-ENVIRONMENTAL,49(1),61-65.
MLA Yang, JB,et al."DRIFTS study of NO-H-2 reaction over Pd/Al2O3 with excess oxygen".APPLIED CATALYSIS B-ENVIRONMENTAL 49.1(2004):61-65.
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