DICP OpenIR
Subject Area物理化学
Stabilization mechanism and crystallographic sites of Ru in Fe-promoted barium hexaaluminate under high-temperature condition for N2O decomposition
Zhang, Yan1,2; Wang, Xiaodong1; Zhu, Yanyan3; Zhang, Tao1; Wang XD(王晓东); Zhang T(张涛)
KeywordStabilization Of Ruthenium Hexaaluminate Iron Rietveld Refinement N2o Decomposition
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2013-01-17
DOI10.1016/j.apcatb.2012.10.001
Volume129Pages:382-393
Indexed BySCI
Cooperation Status
SubtypeArticle
Department15
Funding Project1501
Contribution Rank待补充
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordCATALYTIC DECOMPOSITION ; NITROUS-OXIDE ; CRYSTAL-STRUCTURE ; BETA-ALUMINA ; SUBSTITUTED BA-BETA-AL2O3 ; SUPERIOR PERFORMANCE ; DE-N2O PERFORMANCE ; PARTIAL OXIDATION ; RUTHENIUM OXIDE ; CATION VALENCE
AbstractThe stabilization of volatile ruthenium from catalysts at high temperatures is an important issue in both academia and industry. In this paper, Ru-substituted barium hexaalumimates (BaRu0.2FeAl10.8O19) with beta(1)-Al2O3 structure were prepared using the carbonates route and investigated for high-concentration of N2O decomposition. It was for the first time found that the evaporation of ruthenium species under high-temperature condition (1100-1200 degrees C) could be effectively suppressed by the addition of Fe in the hexaaluminate precursor. Fe promoted the formation of intermediate stable BaRuO3 phase, which greatly alleviated the evaporation of Ru species during calcination, and thus allowed more Ru species enter into the final sintering-resistant hexaaluminate lattice after high-temperature treatment. Ru ions in the hexaaluminate structure only occupied the distorted tetrahedral interstitial Al(5) sites in the loosely packed mirror plane, which originated from Ru species in oxidic entities dispersed on the Ba-modified gamma-Al2O3 and the intermediate BaRuO3 in the precursors. Ru ions in the Al(5) sites were key factors responsible for the high activity of N2O decomposition. (C) 2012 Elsevier B.V. All rights reserved.
Language英语
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
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WOS IDWOS:000312689500043
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119529
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang XD(王晓东); Zhang T(张涛)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.NW Univ Xian, Coll Chem Engn, Xian 710069, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yan,Wang, Xiaodong,Zhu, Yanyan,et al. Stabilization mechanism and crystallographic sites of Ru in Fe-promoted barium hexaaluminate under high-temperature condition for N2O decomposition[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2013,129:382-393.
APA Zhang, Yan,Wang, Xiaodong,Zhu, Yanyan,Zhang, Tao,王晓东,&张涛.(2013).Stabilization mechanism and crystallographic sites of Ru in Fe-promoted barium hexaaluminate under high-temperature condition for N2O decomposition.APPLIED CATALYSIS B-ENVIRONMENTAL,129,382-393.
MLA Zhang, Yan,et al."Stabilization mechanism and crystallographic sites of Ru in Fe-promoted barium hexaaluminate under high-temperature condition for N2O decomposition".APPLIED CATALYSIS B-ENVIRONMENTAL 129(2013):382-393.
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