Three-dimensional hierarchical meso/macroporous Mo/Ce/TiO2 composites enhances biodiesel production from acidic soybean oil by transesterification-esterifiications

Energy Conversion and Management, Год журнала: 2024, Номер 305, С. 118273 - 118273

Опубликована: Март 7, 2024

Язык: Английский

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Optimization of the activity of Mo7-Zn3/CaO catalyst in the transesterification of waste cooking oil into sustainable biodiesel via response surface methodology

Energy Conversion and Management, Год журнала: 2024, Номер 303, С. 118185 - 118185

Опубликована: Фев. 12, 2024

Язык: Английский

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Ultrasound-assisted dispersion of bifunctional CaO-ZrO2 nanocatalyst over acidified kaolin for production of biodiesel from waste cooking oil

Renewable Energy, Год журнала: 2024, Номер 225, С. 120287 - 120287

Опубликована: Март 6, 2024

Язык: Английский

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Biodiesel production from waste cooking oil using an innovative magnetic solid acid catalyst based on Ni–Fe ferrite: RSM-BBD optimization approach

Journal of Industrial and Engineering Chemistry, Год журнала: 2024, Номер 135, С. 270 - 285

Опубликована: Янв. 22, 2024

Язык: Английский

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Different ligand functionalized bimetallic (Zr/Ce)UiO-66 as a support for immobilization of phosphotungstic acid with enhanced activity for the esterification of fatty acids

Sustainable Chemistry and Pharmacy, Год журнала: 2023, Номер 37, С. 101344 - 101344

Опубликована: Ноя. 22, 2023

Язык: Английский

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A comprehensive insight into the role of synthesis methods on the properties and performance of bio-derived heterogeneous catalysts for biodiesel production

Molecular Catalysis, Год журнала: 2025, Номер 579, С. 115057 - 115057

Опубликована: Март 30, 2025

Язык: Английский

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α-MoO₃ Micro- and Nanoparticles as Catalysts for Biofuel Production

ACS Applied Nano Materials, Год журнала: 2024, Номер unknown

Опубликована: Май 21, 2024

Herein, α-MoO3 micro- and nanoparticles were synthesized by a modified Pechini method, the impact of crystal structure growth orientation on formation ionic defects and, consequently, catalytic performance materials in ethylic transesterification reaction for biodiesel production was investigated. Structural refinements from X-ray diffraction data Raman spectra revealed Pbnm orthorhombic phase, with nanoplate-like morphology at 500 °C (thickness between 100 260 nm) or ribbon-like 700 400 900 nm). An anisotropic along [010] direction observed an increase calcination temperature. We emphasize dependence change elimination ionic-type (oxygen vacancies reduced Mo5+ centers) temperature using complementary techniques such as photoelectron electron paramagnetic resonance spectroscopies. The activity samples depends process presence that act acid-active sites catalyst surface therefore play important role production. This effect confirmed stability reactivity simulated density functional theory calculations, suggesting Mo O terminals greatly impacted interface reaction. highest toward conversion (89% 150 2 h) achieved polycrystalline calcined °C, which correlated random oxygen vacancy centers different facets exposed surface. 1H 13C NMR spectroscopy gas chromatography analysis.

Язык: Английский

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Optimization of Biodiesel Production Process Using MoO3 Catalysts and Residual Oil: A Comprehensive Experimental 23 Study

Molecules, Год журнала: 2024, Номер 29(10), С. 2404 - 2404

Опубликована: Май 20, 2024

The study aimed to utilize MoO

Язык: Английский

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Esterification of oleic acid using CoFe2O4@MoS2 solid acid catalyst under microwave irradiation

Fuel, Год журнала: 2024, Номер 371, С. 131988 - 131988

Опубликована: Май 24, 2024

Язык: Английский

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Potential of Nb2O5 as a Catalyst in Biodiesel Production: A Study with Different Feedstock

Molecules, Год журнала: 2025, Номер 30(5), С. 1075 - 1075

Опубликована: Фев. 26, 2025

The objective of this study was to evaluate the catalytic performance commercial Nb2O5, supplied by CBMM, in production biodiesel transesterification and esterification, using different feedstocks (soybean, corn, sunflower, waste oils) both methyl ethyl routes. For this, catalyst characterized terms its crystal structure X-ray diffraction (XRD), specific surface area Brunauer-Emmett-Teller (BET) technique, thermal stability thermogravimetric analysis (TGA), morphology scanning electron microscopy (SEM), acidity ammonia desorption at programmed temperature (TPD-NH3), activity gas chromatography. results from structural analyses indicated that Nb2O5 has a single monoclinic phase consisting irregular agglomerates. 1.3 m2/g, density 4.639 g/cm3. showed material stability, maintaining integrity up temperatures as high 1000 °C. total reached 301 μmol NH3/g, indicating presence Brønsted Lewis acidic sites. In tests, higher efficiency route, achieving an initial conversion 96.43% esters with soybean oil, outperforming other feedstocks. However, reuse over five cycles revealed progressive decrease activity, possibly due blocking active sites adsorbed products, confirmed FTIR XRD conducted on catalyst. Despite decreased after cycles, maintained structure, stability. These demonstrate potential heterogeneous for production, particularly route high-quality oils. This highlights relevance synthesis, contributing sustainable practices technological advancement renewable energy sector.

Язык: Английский

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