双金属片
糠醛
糠醇
材料科学
催化作用
生物量(生态学)
纳米颗粒
化学工程
碳纤维
生物炭
纳米技术
化学
有机化学
热解
复合材料
复合数
工程类
地质学
海洋学
作者
Di Hu,Hong Xu,Zixiao Yi,Zuo Chen,Chenlu Ye,Zuotong Wu,Hector F. Garcés,Kai Yan
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2019-08-27
卷期号:7 (18): 15339-15345
被引量:53
标识
DOI:10.1021/acssuschemeng.9b02665
摘要
The green utilization of biomass waste and its eco-friendly conversion into biofuels and value-added chemicals play a crucial role in resolving energy demand and environmental pollution. Herein, we report a win–win strategy to utilize biomass waste to fabricate functional materials and then transform biomass-derived source into valuable products. We developed a one-step strategy using the green solvent CO2 deposition method to spatially confine monometallic Pd and Pt and bimetallic Pd–Pt nanoparticles in a porous carbon fabricated from biomass waste sorghum at a very low temperature of 40–70 °C. The synthesized monometallic Pd and Pt and bimetallic Pd–Pt nanoparticles display superior performance in the selective conversion of biomass-based furfural into fine chemicals, furfuryl alcohol and tetrahydrofurfuryl alcohol. With only 3 wt % Pd or 3 wt % Pt supported on the synthesized porous carbon, these catalysts are far superior to the commercial 5 wt % Pd or Pt on carbon support, respectively. The turnover number of the as-prepared 3 wt % Pd/C catalyst shows ∼7 times improvement compared with the commercial 5 wt % Pd/C. This study provided a one-step method to precisely confine monometallic Pd and Pt and bimetallic Pd–Pt in the porous channel of the carbon support, offered more catalytic active sites, and presented excellent performance and high stability. The methodology developed in this work is promising for the synthesis of various metallic nanoparticles and valorization of biomass.
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