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Nonaqueous synthesis of SrO nanopowder and SrO/SiO2 composite and their application for biodiesel production via microwave irradiation

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  • Naor, Efrat Ohayon
  • Koberg, Miri
  • Gedanken, Aharon

Abstract

SrO/SiO2 composite was synthesized in a few minutes by reacting Strontium acetylacetonate in benzyl alcohol with mm size SiO2 beads using microwave radiation under argon atmosphere. The current work illustrates the optimization of a one-stage method whereby Nannochloropsis microalgae is converted to biodiesel using direct transesterification by microwave irradiation, the SrO/SiO2 serving as a base catalyst. Microwave radiation accelerates the disruption of the microalgae cells, and eases the release of oil. The SrO/SiO2 has been characterized by thermogravimetric analysis (TGA), powder X-ray diffraction (PXRD), scanning electron micrograph (SEM) and dynamic light scattering (DLS). The activity of the catalyst particles in the transesterification reaction was studied using 1H NMR spectroscopy. The catalyst was reused for six cycles without appreciable loss in catalytic activity and the biodiesel yield of the Nannochloropsis microalgae was measured.

Suggested Citation

  • Naor, Efrat Ohayon & Koberg, Miri & Gedanken, Aharon, 2017. "Nonaqueous synthesis of SrO nanopowder and SrO/SiO2 composite and their application for biodiesel production via microwave irradiation," Renewable Energy, Elsevier, vol. 101(C), pages 493-499.
    • Handle: RePEc:eee:renene:v:101:y:2017:i:c:p:493-499
    DOI: 10.1016/j.renene.2016.09.007
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    References listed on IDEAS

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    1. Penner, S.S., 2006. "Steps toward the hydrogen economy," Energy, Elsevier, vol. 31(1), pages 33-43.
    2. Blackler, T. & Iqbal, M.T., 2006. "Pre-feasibility study of wind power generation in holyrood, newfoundland," Renewable Energy, Elsevier, vol. 31(4), pages 489-502.
    3. Meher, L.C. & Vidya Sagar, D. & Naik, S.N., 2006. "Technical aspects of biodiesel production by transesterification--a review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 10(3), pages 248-268, June.
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    1. Jume, Binta Hadi & Gabris, Mohammad Ali & Rashidi Nodeh, Hamid & Rezania, Shahabaldin & Cho, Jinwoo, 2020. "Biodiesel production from waste cooking oil using a novel heterogeneous catalyst based on graphene oxide doped metal oxide nanoparticles," Renewable Energy, Elsevier, vol. 162(C), pages 2182-2189.
    2. Li, Hui & Liu, Fengsheng & Ma, Xiaoling & Cui, Ping & Guo, Min & Li, Yan & Gao, Yan & Zhou, Shoujun & Yu, Mingzhi, 2020. "An efficient basic heterogeneous catalyst synthesis of magnetic mesoporous Fe@C support SrO for transesterification," Renewable Energy, Elsevier, vol. 149(C), pages 816-827.
    3. Aghilinategh, Maryam & Barati, Mohammad & Hamadanian, Masood, 2020. "The modified supercritical media for one-pot biodiesel production from Chlorella vulgaris using photochemically-synthetized SrTiO3 nanocatalyst," Renewable Energy, Elsevier, vol. 160(C), pages 176-184.
    4. Li, Ying & Niu, Shengli & Wang, Jun & Zhou, Wenbo & Wang, Yongzheng & Han, Kuihua & Lu, Chunmei, 2022. "Mesoporous SrTiO3 perovskite as a heterogeneous catalyst for biodiesel production: Experimental and DFT studies," Renewable Energy, Elsevier, vol. 184(C), pages 164-175.

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