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<p>Highly efficient mesoporous silica-supported copper catalysts were employed in simultaneous dehydrogenation of cyclohexanol (CHOL) to cyclohexanone (CHN) and hydrogenation furfuraldehyde (FAL) to furfuryl alcohol (FOL). The present coupling reaction is economically viable as it requires no external supply of hydrogen and is performed in vapor phase at atmospheric pressure within a temperature range of 433–513 K over 2D SBA-15 and 3D KIT-6, which were more competent toward CHN and FOL on 10% Cu than 10% Cu/SiO<sub>2</sub>. Various characterization techniques and activity studies were applied, including x-ray diffraction (XRD), H<sub>2</sub> temperature-programmed reduction (TPR), N<sub>2</sub>O pulse chemisorption, and Brunauer–Emmett–Teller (BET) surface area studies. The stability of these catalysts was evaluated through time-on-stream studies conducted for up to 10 h. In addition, the higher activity of 10CS-15 and 10CK-6 is owing to the improved dispersion and a greater number of active species of copper over a large surface, facilitating the transfer of hydrogen in the hydrogenation process when transforming furfuraldehyde (FAL) to furfuryl alcohol (FOL).</p>

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Simultaneous Dehydrogenation of Cyclohexanol to Cyclohexanone and Hydrogenation of Furfuraldehyde to Furfuryl Alcohol over Mesoporous Silica-Supported Copper Catalysts

  • 期刊论文

  • 发表日期：

    2026年3月31日

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  • B. Sridevi,
  • Ch. S. Anuradha

摘要

Highly efficient mesoporous silica-supported copper catalysts were employed in simultaneous dehydrogenation of cyclohexanol (CHOL) to cyclohexanone (CHN) and hydrogenation furfuraldehyde (FAL) to furfuryl alcohol (FOL). The present coupling reaction is economically viable as it requires no external supply of hydrogen and is performed in vapor phase at atmospheric pressure within a temperature range of 433–513 K over 2D SBA-15 and 3D KIT-6, which were more competent toward CHN and FOL on 10% Cu than 10% Cu/SiO2. Various characterization techniques and activity studies were applied, including x-ray diffraction (XRD), H2 temperature-programmed reduction (TPR), N2O pulse chemisorption, and Brunauer–Emmett–Teller (BET) surface area studies. The stability of these catalysts was evaluated through time-on-stream studies conducted for up to 10 h. In addition, the higher activity of 10CS-15 and 10CK-6 is owing to the improved dispersion and a greater number of active species of copper over a large surface, facilitating the transfer of hydrogen in the hydrogenation process when transforming furfuraldehyde (FAL) to furfuryl alcohol (FOL).