Mesoporous carbon encapsulated with SrO nanoparticles for the transesterification of ethyl acetoacetate

Raja, Pradeep Kumar, Chokkalingam, Anand, Priya, Subramaniann V., Wahab, Mohammad Abdul, Dhawale, Dattatray S., Lawrence, Geoffrey, Ariga, Katsuhiko, Jayavell, Ramasanny and Vinu, Ajayan (2012) Mesoporous carbon encapsulated with SrO nanoparticles for the transesterification of ethyl acetoacetate. Journal of Nanoscience and Nanotechnology, 12 11: 8467-8474. doi:10.1166/jnn.2012.6608

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Author Raja, Pradeep Kumar
Chokkalingam, Anand
Priya, Subramaniann V.
Wahab, Mohammad Abdul
Dhawale, Dattatray S.
Lawrence, Geoffrey
Ariga, Katsuhiko
Jayavell, Ramasanny
Vinu, Ajayan
Title Mesoporous carbon encapsulated with SrO nanoparticles for the transesterification of ethyl acetoacetate
Journal name Journal of Nanoscience and Nanotechnology   Check publisher's open access policy
ISSN 1533-4880
Publication date 2012-11
Year available 2012
Sub-type Article (original research)
DOI 10.1166/jnn.2012.6608
Volume 12
Issue 11
Start page 8467
End page 8474
Total pages 8
Place of publication Valencia, CA, United States
Publisher American Scientific Publishers
Collection year 2013
Language eng
Formatted abstract
Highly basic active sites were introduced by the encapsulation of SrO nanoparticles inside the porous channels of highly ordered mesoporous carbon using wet-impregnation method. The samples prepared were thoroughly investigated employing various physico-chemical characterization techniques such as X-ray diffraction (XRD), N2 adsorption, high resolution transmission electron microscope (HRTEM) and elemental mapping. The basic sites located inside the nanochannels were quantified by the temperature programmed desorption (TPD) of CO2. XRD, N2 adsorption and HRTEM results revealed that the structural order of the parent CMK-3 support is retained even after higher loading of SrO nanoparticles. TPD of CO2 profiles confirmed that the number of basic active sites can be controlled by varying the SrO loading and the pore diameter of the CMK-3 support. The catalytic potential of the prepared samples was investigated on the transesterification of ethyl acetoacetate (EAA) as a probe reaction. Among the catalysts studied, CMK-3-150 loaded with 30 wt% of SrO nanoparticles exhibited the highest catalytic activity. The effect of various alcohols such as aryl (benzyl alcohol), aliphatic (1-butanol and 1-octanol) and cyclic alcohols (cyclohexanol and furfuryl alcohol) affecting the activity of the catalyst was also investigated. It was found that the catalyst offers maximum conversion when linear aliphatic alcohols especially, 1-butanol with shorter chain length are used. The amount of SrO loading, pore diameter of the CMK-3 support and the weight of the catalyst affecting the catalytic performance of the samples were investigated and discussed in accordance with the physico-chemical characterization data of the catalysts.
Keyword Strontium Oxide
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
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