Utilization of renewable resources: Investigation on role of active sites in zeolite catalyst for transformation of furfuryl alcohol into alkyl levulinate

Vaishnavi, B. J.; Sujith, S.; Kulal, Nagendra; Manjunathan, Pandian; Shanbhag, Ganapati V.

doi:10.1016/j.mcat.2020.111361

Cited by 9 publications

(5 citation statements)

References 36 publications

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“…The study suggests a proficient route for support modification wherein optionally various other solid acids/bases or metals can be used as per the requirement. In the present study, H-ZSM-5 is chosen as an acidic component to prepare the acido-basic composite due to its tunable acidity and its proven activity for alcoholysis reaction including alcoholysis of FA to EL. − Moreover, H-ZSM-5-based catalysts are reported to show promising activity for the conversion of FUR and FA to levulinic acid/esters and gamma-valerolactone. , Recently, Zhao et al reported a comparative study on the application of various solid acids for the conversion of FA to alkyl levulinates wherein H-ZSM-5-based catalysts showed superior catalytic performance . Nonetheless, other zeolite-based catalysts, e.g., H-ZSM-12, are also known to have good catalytic activity for the esterification of levulinic acid .…”

Section: Introductionmentioning

confidence: 99%

Hybrid Nanocomposite Comprising Mg–Al Hydrotalcite Nanocrystals on ZSM-5 Zeolite for Production of Renewable Fuel Additives from Furfural

Tathod

Saini

Arumugam

et al. 2023

ACS Appl. Nano Mater.

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An acido-basic nanocomposite is prepared through the in situ formation and growth of Mg–Al hydrotalcite nanocrystals on a ZSM-5 surface. The metal-functionalized hydrotalcite-ZSM-5 composite has been employed as a catalyst for the single-pot conversion of furfural to ethyl levulinate. The specific morphology of the composite with edge-to-face attachment of hydrotalcite nanocrystals on the ZSM-5 surface confirms the accessibility to the active sites located inside the zeolite pores. The prepared samples are thoroughly characterized using techniques like HR-SEM, HR-TEM, XRD, FTIR, N2 adsorption–desorption, TPD, TPR, UV–Vis spectroscopy, XPS, etc. for a better understanding of the catalyst properties. As high as 76% yield of ethyl levulinate was obtained through the cascaded transfer hydrogenation–alcoholysis reaction using ethanol as a H2 donor. In metal-functionalized hydrotalcite-ZSM-5 composite, metallic sites, basic sites, and acid sites are in close proximity, which act synergistically to exhibit superior catalytic performance.

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Section: Introductionmentioning

confidence: 99%

Hybrid Nanocomposite Comprising Mg–Al Hydrotalcite Nanocrystals on ZSM-5 Zeolite for Production of Renewable Fuel Additives from Furfural

Tathod

Saini

Arumugam

et al. 2023

ACS Appl. Nano Mater.

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“…[5][6][7] As 62% of the furfural is converted into FA, employing FA directly as a starting material seems to be economically viable. 8 Hence, in our study, we chose the less expensive esterification route over the one-pot synthesis route aiming to design a catalyst that can be operated under mild reaction conditions as per the green chemistry principles. In our study, various solid acid catalysts with different active sites were screened for the esterification of FA to FAc.…”

Section: Introductionmentioning

confidence: 99%

Selective synthesis of furfuryl acetate over solid acid catalysts and active site exploration using density functional theory

Vaishnavi

Sujith

Vaibhava

et al. 2022

Catal. Sci. Technol.

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“…The incessant global energy needs have compelled the development of renewable, sustainable, and efficient alternatives to fossil fuel resources [20][21][22][23]. In this regard, direct methanol fuel cells (DMFCs) have garnered exploding intrigue over the past years towards the production of sustainable energy [24,25].…”

Section: Introductionmentioning

confidence: 99%

Cost-Effective Nanoporous Gold Obtained by Dealloying Metastable Precursor, Au33Fe67, Reveals Excellent Methanol Electro-Oxidation Performance

et al. 2022

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In this study, we report nanoporous gold (NPG) as an economic, efficient, and stable alternative electrocatalyst for methanol electro-oxidation. The said sample was successfully prepared from an Fe-rich metastable Au33Fe67 supersaturated solid solution acting as the precursor, which was formed into ribbons by the phenomenon of rapid solidification using melt-spinning technique. The as‑quenched ribbon was then chemically dealloyed in 1 M HCl at 70 °C for different durations of time. A homogeneous, free-standing, and mechanically stable NPG sample was obtained with tunable ligament shape and size. The morphology and composition were characterized by using SEM with EDS, while the structure by XRD. The sample was examined as an electrocatalyst for methanol electro-oxidation profiting off its large surface area; cyclic voltammetry (CV) was the technique employed for electrochemical studies. In a basic solution of methanol and KOH, the sample displays a low peak potential of 0.47 V vs. Ag/AgCl for methanol electro-oxidation with a high peak current density of 0.43 mA/cm2. In addition, it demonstrates outstanding stability and high poisoning tolerance. It is noteworthy that the fabrication process of the NPG sample from start to end was intentionally opted to be sustainable, cost-effective, rapid, and feasible. The usage of critical raw materials was avoided. As a whole, the properties and results put forth by the NPG sample make it an inexpensive, sustainable, and excellent alternative as an electrocatalyst for methanol electro-oxidation.

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Utilization of renewable resources: Investigation on role of active sites in zeolite catalyst for transformation of furfuryl alcohol into alkyl levulinate

Cited by 9 publications

References 36 publications

Hybrid Nanocomposite Comprising Mg–Al Hydrotalcite Nanocrystals on ZSM-5 Zeolite for Production of Renewable Fuel Additives from Furfural

Hybrid Nanocomposite Comprising Mg–Al Hydrotalcite Nanocrystals on ZSM-5 Zeolite for Production of Renewable Fuel Additives from Furfural

Selective synthesis of furfuryl acetate over solid acid catalysts and active site exploration using density functional theory

Cost-Effective Nanoporous Gold Obtained by Dealloying Metastable Precursor, Au33Fe67, Reveals Excellent Methanol Electro-Oxidation Performance

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