Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Propylsulfonic acid functionalized mesoporous silica catalysts for esterification of fatty acids
Chulalongkorn University, Thailand.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Nanostrukturerade material. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Nanostrukturerade material. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0002-2286-5588
Chulalongkorn University, Thailand.
2015 (engelsk)Inngår i: Journal of Molecular Catalysis A: Chemical, ISSN 1381-1169, E-ISSN 1873-314X, Vol. 410, s. 253-259Artikkel i tidsskrift (Fagfellevurdert) Published
Resurstyp
Text
Abstract [en]

The catalytic properties of 3 types of mesoporous silica SBA-15 (rope, rod and fiber), with 9.2 nm or 12.1 nm large mesopores, were examined with respect to their morphology and pore size. Commercially available Amberlyst-15 and the small pore sized MCM-41 were used for comparison. The catalysts were prepared by functionalization of the silica supports with propylsulfonic acid (Pr-SO3H) using postsynthesis grafting with 3 -mercaptopropyltrimethoxysilane as a propyl-thiol precursor. All materials remained in a well-ordered hexagonal mesoporous structure after Pr-SO3H functionalization. The performance of the Pr-SO3H-functionalized mesoporous silicas was evaluated in terms of their catalytic activity in the esterification of oleic acid with short (methanol) and long (glycerol) chain alcohols, i.e., to test the effect of the pore size on the substrate conversion and product yield. The synthesized catalysts were highly active and the product composition could be tuned by selective choice of the mesopore size. The Pr-SO3H-functionalized rope-shaped SBA-15 gave the highest catalytic activity (in terms of the highest methyl oleate and triglyceride yields and oleic acid conversion level), which was higher than that obtained with the commercial Amberlyst-15 catalyst. A high acid amount, large specific surface area and a suitable pore size are the likely reasons for the high yield gained by Pr-SO3H-functionalized rope-shaped SBA-15 silica. (C) 2015 Elsevier B.V. All rights reserved.

sted, utgiver, år, opplag, sider
ELSEVIER SCIENCE BV , 2015. Vol. 410, s. 253-259
Emneord [en]
Mesoporous silica; Acid functionalization; Esterification; Fatty acid; Glycerol
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-123508DOI: 10.1016/j.molcata.2015.10.002ISI: 000365368100030OAI: oai:DiVA.org:liu-123508DiVA, id: diva2:886298
Merknad

Funding Agencies|Grant for International Research Integration: Chula Research Scholar, Ratchadaphiseksomphot Endowment Fund; Post-doctoral Fellowship (Ratchadaphiseksomphot Endowment Fund) Chulalongkorn University; Knut and Alice Wallenberg Foundation [KAW 2012.0083]; Nanolith Sverige AB

Tilgjengelig fra: 2015-12-22 Laget: 2015-12-21 Sist oppdatert: 2017-12-01

Open Access i DiVA

fulltext(571 kB)141 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 571 kBChecksum SHA-512
4144d896142020692f76bb632bdb6bd32ae1893070e0ec56412494901070dc5bb9ed588a2c4729528d1994f1d0659a944ad941f6aaf3fb63c3e3c126d8b15412
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Søk i DiVA

Av forfatter/redaktør
Björk, EmmaOdén, Magnus
Av organisasjonen
I samme tidsskrift
Journal of Molecular Catalysis A: Chemical

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 141 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 187 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf