Metal modified graphene oxide composite catalyst for the production of biodiesel via pre-esterification of Calophyllum inophyllum oil

Marso, T. M. M.; Kalpage, C. S.; Udugala-Ganehenege, M.Y.

doi:10.1016/j.fuel.2017.01.004

Cited by 59 publications

(23 citation statements)

References 48 publications

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“…In the synthesis of GO by the Hummers method, a series of functional groups containing oxygen, such as alcohols, epoxides and carboxylates, as well as a small quantity of sulfate groups, are introduced to the graphene plane, acting, thus, as Brønsted acids , making these materials very active as catalysts in a myriad of organic molecule transformations (Navalón et al, 2018). Moreover, GO/metal oxide composites have the advantage of having both strong Brønsted as well as Lewis acid properties (Marso et al, 2017). Thus, the introduction of different functional groups makes GO and its composites excellent catalysts for many synthetic transformations, such as sulfide, thiol (Dreyer et al, 2010), C-H bond (Jia et al, 2011), alcohol and alkene oxidation (Dreyer et al, 2010), hydrogenation of nitrobenzene (Gao et al, 2011) and epoxide ring opening (Acocella et al, 2016;Dhakshinamoorthy et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

GRAPHENE OXIDE AND A GO/ZnO NANOCOMPOSITE AS CATALYSTS FOR EPOXY RING-OPENING OF EPOXIDIZED SOYBEAN FATTY ACIDS METHYL ESTERS

Wanderley

Leite

Cardoso

et al. 2019

Braz. J. Chem. Eng.

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In this work, the grapheme oxide (GO) and GO/ZnO nanocomposite were successfully obtained from the oxidation of graphite and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA). In the GO/ZnO nanocomposite, the GO sheets were coated with aggregated ZnO nanoneedles with ca. 20 nm of diameter. The obtained materials were used as heterogeneous catalysts for acetylation of Soybean Fatty Acids Methyl Esters (FAME), promoting the epoxy ring-opening using acetic anhydride. The epoxy ring was almost completely opened in the presence of GO or GO/ZnO nanocomposites, with conversion rates up to 99% and selectivity of ca. 90%, and partially opened using only ZnO. The GO/Zn and GO catalysts were reused three times with conversion rates of ca. 85 and 74%, respectively.

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Section: Introductionmentioning

confidence: 99%

GRAPHENE OXIDE AND A GO/ZnO NANOCOMPOSITE AS CATALYSTS FOR EPOXY RING-OPENING OF EPOXIDIZED SOYBEAN FATTY ACIDS METHYL ESTERS

Wanderley

Leite

Cardoso

et al. 2019

Braz. J. Chem. Eng.

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“…Metal‐modified graphene oxide composite was used as a heterogeneous acid catalyst in the esterification of stearic acid and reduction of FFA levels in Calophyllum inophyllum oil . Stearic acid conversion of 92.72 % and 95.37 % FFA reduction were obtained under a methanol‐to‐FFA molar ratio of 10:1, 8 % catalyst, and 65 °C for 3 h. The catalyst was reusable for more than 4 cycles.…”

Section: Heterogeneous Catalystsmentioning

confidence: 99%

A Review on Biodiesel Production through Heterogeneous Catalysis Route

et al. 2018

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Depletion of oil reserves, increasing prices of petroleum products, and environmental concerns related to air pollution are the main driving forces for utilizing renewable energy resources to replace fossil fuels. Vegetable oils can be used to produce biodiesel. Biodiesel is obtained by transesterification of vegetable oil with alcohol using homogeneous or heterogeneous catalysts. In the industry, biodiesel is produced by heterogeneous catalysts due to high activity and selectivity, better reusability, reduction in processing steps, and wastes. The catalytic activity of catalysts depends on the strength and type of intrinsic basic or/and acid properties. Biodiesel production using heterogenous catalysts depends on the various reaction parameters such as reaction time, temperature, molar ratio of alcohol to oil, catalyst amount, and stirring speed. In this paper, the catalytic transesterification of various feedstocks such as edible oil, non‐edible oil, and waste using heterogeneous catalysts has been reviewed and optimization parameters for maximum biodiesel production have been summarized.

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“…This structure is capable of protecting active sites of catalyst. Graphene oxide can be obtained at low cost on large scale by using graphite and graphite oxide [7]. Graphene oxide can also be synthesis from waste material (like waste plastics, biomass wastes, wood, leaf, animal bones etc.…”

Section: Graphene Oxidementioning

confidence: 99%

“…It leads the researchers around the world to focus towards the heterogeneous catalyst for the production of bio diesel. The heterogeneous catalyst are non-corrosive, eco-friendly in nature, can be easily separated from products, tunable, selective, capable of producing a clear solution of biodiesel and reused with or without regenerating them makes it more convenient for the production of biodiesel compared to homogeneous catalysts [7].…”

Section: Introductionmentioning

confidence: 99%

Advancement in the Utilization of Nanocatalyst for Transesterification of Triglycerides

Kumar¹,

Sharma²,

Srivastava³

et al. 2018

JNST

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Metal modified graphene oxide composite catalyst for the production of biodiesel via pre-esterification of Calophyllum inophyllum oil

Cited by 59 publications

References 48 publications

GRAPHENE OXIDE AND A GO/ZnO NANOCOMPOSITE AS CATALYSTS FOR EPOXY RING-OPENING OF EPOXIDIZED SOYBEAN FATTY ACIDS METHYL ESTERS

GRAPHENE OXIDE AND A GO/ZnO NANOCOMPOSITE AS CATALYSTS FOR EPOXY RING-OPENING OF EPOXIDIZED SOYBEAN FATTY ACIDS METHYL ESTERS

A Review on Biodiesel Production through Heterogeneous Catalysis Route

Advancement in the Utilization of Nanocatalyst for Transesterification of Triglycerides

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