Minimizing Energy Demand in the Conversion of Levulinic Acid to γ‑Valerolactone via Photothermal Catalysis Using Raney Ni

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Abstract The valorization of lignocellulosic wastes emerges as a prime strategy to mitigate the global carbon footprint. Among multiple biomass derivatives, γ‐valerolactone is particularly attractive precursor high‐value chemicals, biofuel, green solvent or perfumery. γ‐Valerolactone can be synthesized through hydrogenation reaction from levulinic acid, obtained cellulose. However, high energy requirements this synthetic pathway have hindered its industrial viability. To drastically reduce requirements, here novel strategy, based on solvothermal‐photothermal processes using cost‐effective Raney‐Ni photothermal catalyst, proposed. First, use hydrogen gas avoided by selecting isopropanol safer and greener H‐source. Second, photothermocatalytic process used minimize temperature time with respect conventional reactions. This approach exploits broadband optical absorption Raney®‐Ni, due highly damped plasmonic behavior, achieve fast efficient catalyst heating inside reactor. required less than 2 h just 132 °C reach over 95% conversion, thereby reducing consumption compared Importantly, these conditions granted reusability. could offer sustainable alternative for production γ‐valerolactone.

Language: Английский

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MnO Interface-Induced Ni Electronic Reconfiguration for Hydrogen-Activated Heterolysis and Enhanced Catalytic Hydrogenation of N-Ethylcarbazole

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

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Co-MnO/spontaneously polarized ceramic-carbon composite with oxygen vacancies for enhancing catalytic transfer hydrogenation of levulinic acid to γ-valerolactone

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145417 - 145417

Published: April 1, 2025

Language: Английский

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Zirconium Phosphate-Pillared Zeolite MCM-36 for Green Production of γ-Valerolactone from Levulinic Acid via Catalytic Transfer Hydrogenation

Molecules, Journal Year: 2024, Volume and Issue: 29(16), P. 3779 - 3779

Published: Aug. 9, 2024

γ-valerolactone (GVL), derived from biomass, is a crucial platform compound for biofuel synthesis and various industrial applications. Current methods synthesizing GVL involve expensive catalysts high-pressure hydrogen, prompting the search greener alternatives. This study focuses on novel zirconium phosphate (ZrP)-pillared zeolite MCM-36 derivative catalyst converting levulinic acid (LA) to using alcohol as hydrogen source. The incorporation of ZrP significantly contributes mesoporosity greatly enhances acidity catalysts. Additionally, we employed 31P MAS NMR comprehensively investigate influence phosphorus species both catalytic conversion LA GVL. By adjusting Zr-to-P ratios, synthesized with enhanced acidity, achieving high selectivity exhibited recyclability, showing only minor deactivation over course five cycles. Furthermore, was successfully applied one-pot furfural GVL, showcasing its versatility in biomass conversion. highlights potential MCM-ZrP1 sustainable offers insights future research renewable energy technologies.

Language: Английский

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Enhancing glycerol hydrogenolysis to n-propanol: Key role of Lewis acid in HZSM-5 supported Cu catalyst

Bioresource Technology, Journal Year: 2024, Volume and Issue: 417, P. 131879 - 131879

Published: Nov. 26, 2024

Language: Английский

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