Abstract
The nanoassembly of nearly monodisperse nanoparticles (NPs) as uniform building blocks to engineer zirconia (ZrO2) nanostructures with mesoscopic ordering by using a template as a fastening agent was explored. The mesophase of the materials was investigated through powder X-ray diffraction and TEM analysis (TEM) and N2 sorption studies. The TEM results revealed that the mesopores were created by the arrangement of ZrO2 NPs with sizes of 7.0-9.0nm and with broad interparticle pores. Moreover, the N2 sorption study confirmed the results. The surface chemical analysis was performed to estimate the distribution of Zr, O, and S in the sulfated ZrO2 matrices. The materials in this study displayed excellent catalytic activity in the biodiesel reaction for effective conversion of long-chain fatty acids to their methyl esters, and the maximum biodiesel yield was approximately 100%. The excellent heterogeneous catalytic activity could be attributed to the open framework, large surface area, presence of ample acidic sites located at the surface of the matrix, and high structural stability of the materials. The catalysts revealed a negligible loss of activity in the catalytic recycles.
| Original language | English |
|---|---|
| Pages (from-to) | 3050-3059 |
| Number of pages | 10 |
| Journal | ChemCatChem |
| Volume | 5 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2013 Oct |
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Keywords
- Fatty acids
- Heterogeneous catalysis
- Mesoporous materials
- Nanostructures
- Zirconium
ASJC Scopus subject areas
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
- Catalysis
Cite this
Development of mesoscopically assembled sulfated zirconia nanoparticles as promising heterogeneous and recyclable biodiesel catalysts. / Das, Swapan K.; El-Safty, Sherif A.
In: ChemCatChem, Vol. 5, No. 10, 10.2013, p. 3050-3059.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of mesoscopically assembled sulfated zirconia nanoparticles as promising heterogeneous and recyclable biodiesel catalysts
AU - Das, Swapan K.
AU - El-Safty, Sherif A.
PY - 2013/10
Y1 - 2013/10
N2 - The nanoassembly of nearly monodisperse nanoparticles (NPs) as uniform building blocks to engineer zirconia (ZrO2) nanostructures with mesoscopic ordering by using a template as a fastening agent was explored. The mesophase of the materials was investigated through powder X-ray diffraction and TEM analysis (TEM) and N2 sorption studies. The TEM results revealed that the mesopores were created by the arrangement of ZrO2 NPs with sizes of 7.0-9.0nm and with broad interparticle pores. Moreover, the N2 sorption study confirmed the results. The surface chemical analysis was performed to estimate the distribution of Zr, O, and S in the sulfated ZrO2 matrices. The materials in this study displayed excellent catalytic activity in the biodiesel reaction for effective conversion of long-chain fatty acids to their methyl esters, and the maximum biodiesel yield was approximately 100%. The excellent heterogeneous catalytic activity could be attributed to the open framework, large surface area, presence of ample acidic sites located at the surface of the matrix, and high structural stability of the materials. The catalysts revealed a negligible loss of activity in the catalytic recycles.
AB - The nanoassembly of nearly monodisperse nanoparticles (NPs) as uniform building blocks to engineer zirconia (ZrO2) nanostructures with mesoscopic ordering by using a template as a fastening agent was explored. The mesophase of the materials was investigated through powder X-ray diffraction and TEM analysis (TEM) and N2 sorption studies. The TEM results revealed that the mesopores were created by the arrangement of ZrO2 NPs with sizes of 7.0-9.0nm and with broad interparticle pores. Moreover, the N2 sorption study confirmed the results. The surface chemical analysis was performed to estimate the distribution of Zr, O, and S in the sulfated ZrO2 matrices. The materials in this study displayed excellent catalytic activity in the biodiesel reaction for effective conversion of long-chain fatty acids to their methyl esters, and the maximum biodiesel yield was approximately 100%. The excellent heterogeneous catalytic activity could be attributed to the open framework, large surface area, presence of ample acidic sites located at the surface of the matrix, and high structural stability of the materials. The catalysts revealed a negligible loss of activity in the catalytic recycles.
KW - Fatty acids
KW - Heterogeneous catalysis
KW - Mesoporous materials
KW - Nanostructures
KW - Zirconium
UR - http://www.scopus.com/inward/record.url?scp=84884963915&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884963915&partnerID=8YFLogxK
U2 - 10.1002/cctc.201300192
DO - 10.1002/cctc.201300192
M3 - Article
AN - SCOPUS:84884963915
VL - 5
SP - 3050
EP - 3059
JO - ChemCatChem
JF - ChemCatChem
SN - 1867-3880
IS - 10
ER -