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

Pradeep Kumar Raja, Anand Chokkalingam, Subramaniam V. Priya, Mohammad Abdul Wahab, Dattatray Dhawale, Geoffrey Lawrence, Katsuhiko Ariga, Ramasamy Jayavel, Ajayan Vinu

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)8467-8474
Number of pages8
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number11
DOIs
Publication statusPublished - Nov 2012
Externally publishedYes

Fingerprint

Transesterification
Nanoparticles
1-Butanol
alcohols
Alcohols
Carbon
catalysts
X-Ray Diffraction
nanoparticles
Catalysts
Adsorption
carbon
Catalytic Domain
Cyclohexanols
Electrons
1-Octanol
Benzyl Alcohol
Temperature programmed desorption
Temperature
Butenes

Keywords

  • Basicity
  • Carbon
  • Nanoparticles
  • Strontium oxide
  • Transesterification

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

Cite this

Mesoporous carbon encapsulated with SrO nanoparticles for the transesterification of ethyl acetoacetate. / Raja, Pradeep Kumar; Chokkalingam, Anand; Priya, Subramaniam V.; Wahab, Mohammad Abdul; Dhawale, Dattatray; Lawrence, Geoffrey; Ariga, Katsuhiko; Jayavel, Ramasamy; Vinu, Ajayan.

In: Journal of Nanoscience and Nanotechnology, Vol. 12, No. 11, 11.2012, p. 8467-8474.

Research output: Contribution to journalArticle

Raja, PK, Chokkalingam, A, Priya, SV, Wahab, MA, Dhawale, D, Lawrence, G, Ariga, K, Jayavel, R & Vinu, A 2012, 'Mesoporous carbon encapsulated with SrO nanoparticles for the transesterification of ethyl acetoacetate', Journal of Nanoscience and Nanotechnology, vol. 12, no. 11, pp. 8467-8474. https://doi.org/10.1166/jnn.2012.6608
Raja, Pradeep Kumar ; Chokkalingam, Anand ; Priya, Subramaniam V. ; Wahab, Mohammad Abdul ; Dhawale, Dattatray ; Lawrence, Geoffrey ; Ariga, Katsuhiko ; Jayavel, Ramasamy ; Vinu, Ajayan. / Mesoporous carbon encapsulated with SrO nanoparticles for the transesterification of ethyl acetoacetate. In: Journal of Nanoscience and Nanotechnology. 2012 ; Vol. 12, No. 11. pp. 8467-8474.
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AU - Wahab, Mohammad Abdul

AU - Dhawale, Dattatray

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