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<p>Using heterogeneous catalysts to synthesize chemicals from biomass aligns seamlessly with sustainable chemistry principles. The Cu/ZrO<sub>2</sub> catalyst studied in this study was prepared using impregnation, and has been demonstrated to be highly active in hydrogenating γ-valerolactone (GVL) to methyl tetrahydrofuran (MTHF). In order to characterize CZ catalysts, different bulk and surface characterization techniques were employed. GVL was hydrogenated over the 5CZ catalyst at 275 °C and 0.1&#xa0;MPa, achieving 89.1% GVL conversion with 74.5% selectivity toward MTHF. Hydrogen adsorption is enhanced by the reduced copper particle size of 5CZ, resulting in remarkable hydrogenation activity. In this study, Cu particles and ZrO<sub>2</sub> were found to synergistically interact on the 5CZ catalyst surface due to enhanced dispersions of Cu particles and strong acidic sites. The superior catalytic performance of the 5CZ catalyst can be correlated with the N<sub>2</sub>O titration results, which revealed the highest Cu surface area and excellent Cu dispersion, providing a larger number of accessible active Cu sites for efficient hydrogen adsorption and activation during GVL hydrogenation. It was important to optimize reaction parameters such as temperature, GVL feeding, and catalyst loading in order to achieve excellent conversion of GVL selectively to MTHF.</p> Graphical Abstract <p></p>

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Cu/ZrO2 Catalyst Assisted Cascade Engineered Synthesis of Methyl Tetrahydrofuran from γ-Valerolactone

  • 期刊论文

  • 发表日期：

    2026年7月11日

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  • J. Vasantha Madhuri,
  • Voleti Nagaveni,
  • Venishetty Sunil Kumar,
  • Police Vishnuvardhan Reddy,
  • Saroja Rani Bhupatiraju,
  • Sirisha Bandi

摘要

Using heterogeneous catalysts to synthesize chemicals from biomass aligns seamlessly with sustainable chemistry principles. The Cu/ZrO2 catalyst studied in this study was prepared using impregnation, and has been demonstrated to be highly active in hydrogenating γ-valerolactone (GVL) to methyl tetrahydrofuran (MTHF). In order to characterize CZ catalysts, different bulk and surface characterization techniques were employed. GVL was hydrogenated over the 5CZ catalyst at 275 °C and 0.1 MPa, achieving 89.1% GVL conversion with 74.5% selectivity toward MTHF. Hydrogen adsorption is enhanced by the reduced copper particle size of 5CZ, resulting in remarkable hydrogenation activity. In this study, Cu particles and ZrO2 were found to synergistically interact on the 5CZ catalyst surface due to enhanced dispersions of Cu particles and strong acidic sites. The superior catalytic performance of the 5CZ catalyst can be correlated with the N2O titration results, which revealed the highest Cu surface area and excellent Cu dispersion, providing a larger number of accessible active Cu sites for efficient hydrogen adsorption and activation during GVL hydrogenation. It was important to optimize reaction parameters such as temperature, GVL feeding, and catalyst loading in order to achieve excellent conversion of GVL selectively to MTHF.

Graphical Abstract