Facile synthesis of polyoxometalates tethered to post Fe-BTC frameworks for esterification of free fatty acids to biodiesel

Zhang, Qiuyun; Liu, Xiaofang; Yang, Tingting; Yue, Caiyan; Pu, Quanlin; Zhang, Yutao

doi:10.1039/c8ra10574j

Cited by 45 publications

(23 citation statements)

References 53 publications

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“…52 The derived activation energy over 10SA/UiO-66(Zr) was 32.53 kJ mol À1 , which is lower than the previously reported values (46.69 and 50.74 kJ mol À1 ). 53,54 This result claries the vital role of the combining effect of hydrophobicity, acidity and pore volume in enhancing the rate of the methanolysis of oleic acid by decreasing the energy barrier (E a ). Furthermore, the activation energy value conrmed that the esterication reaction was kinetically controlled not diffusively controlled.…”

Section: Kinetic Study Of the Esterication Reaction Over 10sa/ Uio-6mentioning

confidence: 94%

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A green approach for enhancing the hydrophobicity of UiO-66(Zr) catalysts for biodiesel production at 298 K

et al. 2020

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Section: Kinetic Study Of the Esterication Reaction Over 10sa/ Uio-6mentioning

confidence: 94%

“…Furthermore, the activation energy value conrmed that the esterication reaction was kinetically controlled not diffusively controlled. 54 This suggests that the esterication reaction over 10SA/UiO-66(Zr) was chemically controlled and not by diffusion or mass transfer limitations.…”

Section: Kinetic Study Of the Esterication Reaction Over 10sa/ Uio-6mentioning

confidence: 98%

A green approach for enhancing the hydrophobicity of UiO-66(Zr) catalysts for biodiesel production at 298 K

et al. 2020

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“…Ideal fuel substitutes should possess better properties than conventional fuels, such as renewability, nontoxicity, biodegradability, and less-than-zero release of harmful gases into the environment [11][12][13]. Possible alternative energy sources include sunlight, wind, and biofuels [14].…”

Section: Introductionmentioning

confidence: 99%

Advances in Enzyme and Ionic Liquid Immobilization for Enhanced in MOFs for Biodiesel Production

et al. 2021

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Biodiesel is a promising candidate for sustainable and renewable energy and extensive research is being conducted worldwide to optimize its production process. The employed catalyst is an important parameter in biodiesel production. Metal–organic frameworks (MOFs), which are a set of highly porous materials comprising coordinated bonds between metals and organic ligands, have recently been proposed as catalysts. MOFs exhibit high tunability, possess high crystallinity and surface area, and their order can vary from the atomic to the microscale level. However, their catalytic sites are confined inside their porous structure, limiting their accessibility for biodiesel production. Modification of MOF structure by immobilizing enzymes or ionic liquids (ILs) could be a solution to this challenge and can lead to better performance and provide catalytic systems with higher activities. This review compiles the recent advances in catalytic transesterification for biodiesel production using enzymes or ILs. The available literature clearly indicates that MOFs are the most suitable immobilization supports, leading to higher biodiesel production without affecting the catalytic activity while increasing the catalyst stability and reusability in several cycles.

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“…With diminishing fossil fuel and degradation of the environment, catalytic routes to the production of fuels and chemicals from sustainable sources have aroused much concern over past decades [1][2][3][4]. An abundant renewable and carbon-neutral biomass resource is a promising alternative to petroleum for the production of fuels and chemicals [5].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Transfer of Fructose to 5-Hydroxymethylfurfural over Bimetal Oxide Catalysts

Zhang

Liu

Yang

et al. 2019

International Journal of Chemical Engineering

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Direct conversion of fructose into 5-hydroxymethylfurfural (HMF) is achieved by using modified aluminum-molybdenum mixed oxide (S-AlMo) as solid acid catalysts. The synthesized catalyst was characterized by powder XRD, nitrogen adsorption-desorption isotherm, NH3-TPD, and SEM. As a result, the presence of strong acidity, mesostructures, and high surface area in the S-AlMo catalyst was confirmed by nitrogen adsorption-desorption isotherm and NH3-TPD studies. A study by optimizing the reaction conditions such as catalyst dosage, reaction temperature, and time has been performed. Under the optimal reaction conditions, HMF was obtained in a high yield of 49.8% by the dehydration of fructose. Moreover, the generality of the catalyst is also demonstrated by glucose and sucrose with moderate yields to HMF (24.9% from glucose; 27.6% from sucrose) again under mild conditions. After the reaction, the S-AlMo catalyst can be easily recovered and reused four times without significant loss of its catalytic activity.

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Facile synthesis of polyoxometalates tethered to post Fe-BTC frameworks for esterification of free fatty acids to biodiesel

Abstract: Phosphomolybdic acid was sequentially incorporated into a highly porous metal–organic framework by a one-pot synthesis method, and the prepared composite was used as an efficient and stable solid acid catalyst for biodiesel production.

Cited by 45 publications

References 53 publications

A green approach for enhancing the hydrophobicity of UiO-66(Zr) catalysts for biodiesel production at 298 K

A green approach for enhancing the hydrophobicity of UiO-66(Zr) catalysts for biodiesel production at 298 K

Advances in Enzyme and Ionic Liquid Immobilization for Enhanced in MOFs for Biodiesel Production

Catalytic Transfer of Fructose to 5-Hydroxymethylfurfural over Bimetal Oxide Catalysts

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