Preparation of SBA-15 extrudates: Evaluation of textural and mechanical properties

Chandrasekar G, Hartmann M, Murugesan V (2009)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2009

Journal

Journal of Porous Materials Springer Verlag (Germany)

Publisher: Springer Verlag (Germany)

Book Volume: 16

Pages Range: 175-183

Journal Issue: 2

DOI: 10.1007/s10934-007-9182-7

Abstract

SBA-15 powder (P) was shaped into cylindrical extrudates (Ex) by compounding with additives such as bentonite (binder), methylcellulose and tetraethylorthosilicate (TEOS). The extrudates of SBA-15 were characterized by XRD, N adsorption and thermogravimetric analysis. The orderly growth of SBA-15 is evident from the XRD patterns. The surface area and pore volume of SBA-15 (P) were around 884 m/g and 1.1 cm/g, respectively. The decrease in surface area and pore volume were observed for SBA-15 (Ex) in comparison to SBA-15 (P). This may be due to partial blocking of pore entry and surface coverage of additives during shaping of extrudates. The mechanical strength of SBA-15 (Ex) was examined by vertical crushing method. The effect of additives on the mechanical strength of SBA-15 (Ex) was examined by varying the composition. The results indicate linear increase of mechanical strength with increase in the content of bentonite and methylcellulose, but non-linear response with increase of TEOS and water. Compounding additives have been established to improve the mechanical strength of the extrudates. © 2008 Springer Science+Business Media, LLC.

Authors with CRIS profile

Martin Hartmann Professur für Katalyse

Additional Organisation(s)

Interdisziplinäres Zentrum Erlangen Catalysis Resource Center (ECRC)

Involved external institutions

Technische Universität Kaiserslautern DE Germany (DE) Anna University IN India (IN)

How to cite

APA:

Chandrasekar, G., Hartmann, M., & Murugesan, V. (2009). Preparation of SBA-15 extrudates: Evaluation of textural and mechanical properties. Journal of Porous Materials, 16(2), 175-183. https://dx.doi.org/10.1007/s10934-007-9182-7

MLA:

Chandrasekar, Govindasamy, Martin Hartmann, and Velayutham Murugesan. "Preparation of SBA-15 extrudates: Evaluation of textural and mechanical properties." Journal of Porous Materials 16.2 (2009): 175-183.

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