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<p>C = C and C = O selective hydrogenation in aromatic compounds is a key capability of supported active metal catalysts, leading to numerous practical applications. Here, carbon dots (CDs) material was produced by microwave-assisted hydrothermal method, and used as the carrier and reducing agent to develop PdAg/CDs composite catalyst. PdAg/CDs fabricated by photochemical reduction with UV-light demonstrated high selectivity for hydrogenation of cinnamic aldehyde (CAL) into hydrocinnamic alcohol (HCOL). With PdAg/CDs, 100% of CAL conversion and 90.0% of selectivity to HCOL were obtained at 140&#xa0;°C, 3&#xa0;h and 1 MPa H<sub>2</sub> in water. The improved catalytic performance of the PdAg/CDs catalyst was mainly due to the formation of Pd-Ag alloy and synergetic effect between Pd and Ag.</p>

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Hydrogenation of cinnamaldehyde to hydrocinnamyl alcohol over carbon dots supported Pd-Ag bimetallic

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月13日

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  • Wenyao Deng,
  • Guirong Bao,
  • Kongzhai Li,
  • An Wang,
  • Xuewu Ji,
  • Li Liu,
  • Peng Gao,
  • Hua Wang,
  • Jia Luo

摘要

C = C and C = O selective hydrogenation in aromatic compounds is a key capability of supported active metal catalysts, leading to numerous practical applications. Here, carbon dots (CDs) material was produced by microwave-assisted hydrothermal method, and used as the carrier and reducing agent to develop PdAg/CDs composite catalyst. PdAg/CDs fabricated by photochemical reduction with UV-light demonstrated high selectivity for hydrogenation of cinnamic aldehyde (CAL) into hydrocinnamic alcohol (HCOL). With PdAg/CDs, 100% of CAL conversion and 90.0% of selectivity to HCOL were obtained at 140 °C, 3 h and 1 MPa H2 in water. The improved catalytic performance of the PdAg/CDs catalyst was mainly due to the formation of Pd-Ag alloy and synergetic effect between Pd and Ag.