DICP OpenIR
A two-step synthesis of Fe-substituted hexaaluminates with enhanced surface area and activity in methane catalytic combustion
Huang, Fei1,2; Wang, Xiaodong1; Wang, Aiqin1; Xu, Jinming1; Zhang, Tao1
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
2016
ISSN2044-4753
DOI10.1039/c5cy02187a
Volume6Issue:13Pages:4962-4969
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordBARIUM HEXAALUMINATE ; CRYSTALLOGRAPHIC SITES ; CRYSTAL-STRUCTURE ; MEDIATED SYNTHESIS ; OXYGEN-TRANSFER ; OXIDATION ; MN ; DECOMPOSITION ; OXIDES ; N2O
AbstractHexaaluminates have been regarded as one of the most promising candidates for methane catalytic combustion due to their superior thermal stability up to 1600 degrees C. However, the main challenge for their further application lies in the difficulty in enhancing the surface area. Herein, Fe-substituted hexaaluminates (LaFexAl12-xO19, x = 0-2) with high surface areas (44-51 m(2) g(-1)) have been successfully synthesized via a new two-step method for the first time, in which N,N-dimethylformamide (DMF) was used as a difunctional solvent to derive the precipitant dimethylamine and to control the precipitation rates of the three metal cations, leading to superior homogeneity of the precipitate and thus lowering of the phase formation temperature (lower than 1100 degrees C), and the resin/ carbon coating process was employed to separate the crystallization and grain-growth process, avoiding the aggregation of particles. Methane catalytic combustion tests revealed that both the high surface area and the introduction of Fe could result in low apparent activation energy. The LaFeAl11O19 catalyst exhibited even higher activity than the conventional Pd/Al2O3 catalyst and those prepared by other methods such as the reverse microemulsion method. Mossbauer spectroscopy characterization verified that the catalytic activity of Fe cations should be related to the Fe3+ ions in Al(3) sites and Al(5) sites in the mirror planes.
Language英语
WOS IDWOS:000378734700036
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/170431
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang, Xiaodong
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Huang, Fei,Wang, Xiaodong,Wang, Aiqin,et al. A two-step synthesis of Fe-substituted hexaaluminates with enhanced surface area and activity in methane catalytic combustion[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(13):4962-4969.
APA Huang, Fei,Wang, Xiaodong,Wang, Aiqin,Xu, Jinming,&Zhang, Tao.(2016).A two-step synthesis of Fe-substituted hexaaluminates with enhanced surface area and activity in methane catalytic combustion.CATALYSIS SCIENCE & TECHNOLOGY,6(13),4962-4969.
MLA Huang, Fei,et al."A two-step synthesis of Fe-substituted hexaaluminates with enhanced surface area and activity in methane catalytic combustion".CATALYSIS SCIENCE & TECHNOLOGY 6.13(2016):4962-4969.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Huang, Fei]'s Articles
[Wang, Xiaodong]'s Articles
[Wang, Aiqin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, Fei]'s Articles
[Wang, Xiaodong]'s Articles
[Wang, Aiqin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, Fei]'s Articles
[Wang, Xiaodong]'s Articles
[Wang, Aiqin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.