DICP OpenIR
Novel reverse microemulsion and its application to synthesis of nanostructured La0.95Ba0.05MnAl11O19-alpha catalyst for methane combustion
Xu, JG; Teng, F; Tian, ZJ; Qu, XH; Zhang, PQ; Xu, YP; Xiong, GX; Lin, LW
KeywordMethane Catalytic Combustion Reverse Microemulsion Hexaaluminate N-butanol I-propanol
Source PublicationACTA CHIMICA SINICA
2005-12-28
Volume63Issue:24Pages:2205-2210
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordWATER ; TEMPERATURE ; SYSTEMS ; BAMNAL11O19-ALPHA ; NANOPARTICLES ; IR
AbstractA novel type of reverse microemulsion system composed of water, i-propanol and n-butanol was developed as a reaction medium to prepare substituted-hexaaluminate La0.95Ba0.05MnAl11O19-alpha catalyst for methane combustion. The structure and properties of water in the novel reverse microemulsion system were investigated by means of H-1 NMR, FT-IR, electrical conductometry and laser light scattering apparatus. The electric conductivity of the novel reverse microemulsion system followed a nonlinear correlation when the volume fraction of water was low. There existed a critical point of phi(P) (0.15) along the k similar to phi curve. H-1 NMR revealed that the chemical shift of the water proton signal moved to upfield with decreasing water content. FTIR showed that the nu(O-D) band was shifted to higher frequency with increasing water concent. The size distribution of the Al(OH)(3) gel particles formed by hydrolysis of Al(i-OC3H7)(3) in the novel reverse microemulsion ranged from 226 to 329 nm with the average diameter of 267 nm. Substituted hexaaluminate La0.95Ba0.05MnAl11O19-alpha synthesized in the novel reverse microemulsion system possesses a surface area of 65 m(2)/g, comparable to 32 m(2)/g of similar samples prepared with pure water. XRD measurements revealed that beta-Al2O3 was the only phase for this catalyst after calcination at 1200 degrees C for 10 h and its particle size measured by TEM is about 30 nm. This nanostructured hexaaluminate, when used as a catalyst for CH4 combustion, allowed a light-off of a stream of 1% CH4 in air at 420 degrees C, as compared to 5 10 degrees C required for similar catalyst prepared with pure water. The excellent low-temperature catalytic activity of this catalyst arised from the formation of nanostrctured hexaaluminate that contained larger amount of manganese.
Language英语
WOS IDWOS:000234157000005
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/139873
Collection中国科学院大连化学物理研究所
Affiliation1.Inst Appl Catalysis, Yantai 264005, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Xu, JG,Teng, F,Tian, ZJ,et al. Novel reverse microemulsion and its application to synthesis of nanostructured La0.95Ba0.05MnAl11O19-alpha catalyst for methane combustion[J]. ACTA CHIMICA SINICA,2005,63(24):2205-2210.
APA Xu, JG.,Teng, F.,Tian, ZJ.,Qu, XH.,Zhang, PQ.,...&Lin, LW.(2005).Novel reverse microemulsion and its application to synthesis of nanostructured La0.95Ba0.05MnAl11O19-alpha catalyst for methane combustion.ACTA CHIMICA SINICA,63(24),2205-2210.
MLA Xu, JG,et al."Novel reverse microemulsion and its application to synthesis of nanostructured La0.95Ba0.05MnAl11O19-alpha catalyst for methane combustion".ACTA CHIMICA SINICA 63.24(2005):2205-2210.
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
[Xu, JG]'s Articles
[Teng, F]'s Articles
[Tian, ZJ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, JG]'s Articles
[Teng, F]'s Articles
[Tian, ZJ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, JG]'s Articles
[Teng, F]'s Articles
[Tian, ZJ]'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.