Skip to main content
SLU publication database (SLUpub)

Research article2015Peer reviewed

Controlling micro- and nanostructure and activity of the NaAlO2 biodiesel transesterification catalyst by its dissolution in a mesoporous gamma-Al2O3-matrix

Agafonov, A.V.; Yamanovskaya, Inna A.; Ivanov, V. K.; Seisenbaeva, Gulaim; Kessler, Vadim

Abstract

Mesoporous alumina and alumina–sodium aluminate composites were obtained by sol–gel method using polyethyleneimine as template. New approach for the regulation of the micro- and nanostructure of the composites as catalytic materials was proposed, exploiting inorganic seeds for the control of morphology for the produced nanostructures. Composition and temperature window for preventing the leaching of sodium aluminate in the course of reaction and thus drastically improving the catalytic activity has been identified. Structure and phase composition of the thus obtained catalytic materials were characterized using X-ray diffraction, N2 adsorption/ desorption, FTIR spectra, scanning electron microscopy, and thermal analysis. New type of catalyst has shown high efficiency in the vegetable oil transesterification process under mild conditions opening prospects for small-scale production of reasonably good-quality biodiesel fuel. Graphical Abstract alumina matrix at proper compositions and under controlled temperatures permits to drastically decrease the leaching of aluminate and maintain its high catalytic activity in transesterification of vegetable oils with methanol.

Keywords

Sol-gel alumina; Template synthesis; Mesoporous matrix; Seeded crystallization; Transesterification catalyst; Biodiesel

Published in

Journal of Sol-Gel Science and Technology
2015, Volume: 76, number: 1, pages: 90-97

      SLU Authors

    • Seisenbaeva, Gulaim

      • The Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences
    • Sustainable Development Goals

      Ensure access to affordable, reliable, sustainable and modern energy for all

      UKÄ Subject classification

      Energy Systems
      Materials Chemistry
      Inorganic Chemistry

      Publication identifier

      DOI: https://doi.org/10.1007/s10971-015-3755-8

      Permanent link to this page (URI)

      https://res.slu.se/id/publ/68729