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Synthesis and catalytic properties of nickel salts of Keggin-type heteropolyacids embedded metal-organic framework hybrid nanocatalyst
- Source :
- Green Processing and Synthesis, Vol 9, Iss 1, Pp 131-138 (2020)
- Publication Year :
- 2020
- Publisher :
- De Gruyter, 2020.
-
Abstract
- Nickel salts of Keggin-type heteropolyacid on Zr(IV)-based metal-organic frameworks (UiO-66) has been synthesized via ion-exchange followed by a facile one-pot hydrothermal method. The synthesized catalysts underwent FT-IR, N2 adsorption-desorption, powder XRD, SEM and TEM analysis. The NiHSiW/UiO-66 catalyst was used as a new and effective solid acid in the catalytic transfer free fatty acid to biodiesel with an optimum conversion of 86.7%. The excellent activity of the NiHSiW/UiO-66 nanocatalyst was closely related to its high specific surface area, nano-sized catalyst, and the synergistic effects of NiHSiW salts and UiO-66 matrix. Importantly, a relatively stable catalytic performance was achieved for 8 repeated cycles. Finally, kinetics of the esterification reaction have been assumed to be of pseudo first order.
- Subjects :
- heteropolyacid salts
uio-66
nanocatalyst
esterification
biodiesel
Chemistry
QD1-999
Subjects
Details
- Language :
- English
- ISSN :
- 21919542 and 21919550
- Volume :
- 9
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Green Processing and Synthesis
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.1fedc4a33124740a3095104be0449ca
- Document Type :
- article
- Full Text :
- https://doi.org/10.1515/gps-2020-0014