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Revista de Chimie, Volume 68, Issue 1, pp. 101-107 (2017)


Song Il Kong, Danuta Matei, Diana Cursaru, Vasile Matei, Dragos Ciuparu

Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation

Abstract:

A series of solid acid catalyst of the Keggin-type 12-phosphotungstic acid, H3PW12O40, supported on ordered mesoporous silica MCM-41 were prepared by a simple and effective impregnation method. MCM-41 supports were synthesized in a relatively short time via a recently reported ultrasonic irradiation method. The synthesis sonication time has been systematically varied in order to investigate its influence on the structural order of the resulting materials. The prepared catalysts were characterized by nitrogen adsorption, X-ray diffraction, Raman spectroscopy and thermogravimetric analysis. The resulting materials exhibited hexagonally ordered meso structure, with high surface area of the order of several hundreds of m2g-1,relatively large pore volumes, with the pore diameter in the range of 2.19 to 2.41 nm and a corresponding pore wall thickness of over 1.67nm. The results have demonstrated that high quality MCM-41 materials can be synthesized via the ultrasonic irradiation in few tens of minutes, much shorter than the conventional synthesis methods. Despite their relatively high loading, all synthesized materials retained the characteristic MCM-41mesoporous structure after impregnation of the heteropolyacid active phase onto the inner pore surface, without crystallization, but preserving the Keggin structure as confirmed by Raman spectroscopy.
Keywords:
MCM-41; Ultrasonic irradiation; Heteropolyacid; HPW/MCM-41; Catalyst stability

Issue: 2017 Volume 68, Number 1
Pages: 101-107
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Citation Styles
Cite this article as:
KONG, S.I., MATEI, D., CURSARU, D., MATEI, V., CIUPARU, D., Rev.Chim., 68, no. 1, 2017, p. 101

Vancouver
Kong SI, Matei D, Cursaru D, Matei V, Ciuparu D. Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation. REV.CHIM.[internet]. 2017 Jan;68(1):101-107. Available from: https://revistadechimie.ro/Articles.asp?ID=5398


APA 6th edition
Kong, S.I., Matei, D., Cursaru, D., Matei, V. & Ciuparu, D. (2017). Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation. Revista de Chimie, 68(1), 101-107. https://revistadechimie.ro/Articles.asp?ID=5398


Harvard
Kong, S.I., Matei, D., Cursaru, D., Matei, V., Ciuparu, D. (2017). 'Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation', Revista de Chimie, 68(1), pp. 101-107. https://revistadechimie.ro/Articles.asp?ID=5398


IEEE
S.I. Kong, D. Matei, D. Cursaru, V. Matei, D. Ciuparu, "Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation". Revista de Chimie, vol. 68, no. 1, pp. 101-107, 2017. [online]. https://revistadechimie.ro/Articles.asp?ID=5398


Text
Song Il Kong, Danuta Matei, Diana Cursaru, Vasile Matei, Dragos Ciuparu,
Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation,
Revista de Chimie,
Volume 68, Issue 1,
2017,
Pages 101-107,
ISSN 2668-8212,
https://revistadechimie.ro/Articles.asp?ID=5398
Keywords: MCM-41; Ultrasonic irradiation; Heteropolyacid; HPW/MCM-41; Catalyst stability


RIS
TY - JOUR
T1 - Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation
A1 - Kong, Song Il
A2 - Matei, Danuta
A3 - Cursaru, Diana
A4 - Matei, Vasile
A5 - Ciuparu, Dragos
JF - Revista de Chimie
JO - Rev.Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2017
VL - 68
IS - 1
SP - 101
EP - 107
UR - https://revistadechimie.ro/Articles.asp?ID=5398
KW - MCM-41
KW - Ultrasonic irradiation
KW - Heteropolyacid
KW - HPW/MCM-41
KW - Catalyst stability
ER -


BibTex
@article{RevCh2017P101,
author = {Kong Song Il and Matei Danuta and Cursaru Diana and Matei Vasile and Ciuparu Dragos},
title = {Characterization and Stability of Heteropolyacid Catalysts Supported on MCM-41 Materials Synthesized by Ultrasonic Irradiation},
journal = {Revista de Chimie},
volume = {68},
number = {1},
pages = {101-107},
year = {2017},
issn = {2668-8212},
url = {https://revistadechimie.ro/Articles.asp?ID=5398}
}
 
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