掺氮碳材料催化果糖制备乳酸

Study on Conversion of Fructose to Lactic Acid over Nitrogen-doped Carbon Material

掺氮碳材料具有优异的微观结构和稳定性,以及氮原子掺杂提供的独特电化学性能,可应用于催化反应。本文通过选择性地对石墨改性,制备了碱性的掺氮碳材料催化剂,用于催化果糖制备乳酸。通过对样品的表征及实验分析,我们发现氮原子的掺杂提供了催化活性。最后考察了催化剂在不同的反应条件下对催化效果的影响,以及重复回收性能。结果表明反应温度在200℃,乳酸产率在30 min内可以达到35.2%。

Nitrogen-doped carbon materials have excellent microstructure and stability,as well as unique electrochemical properties provided by nitrogen doping.In this paper,a basic Nitrogen-doped carbon catalyst was prepared by modifying graphite selectively,which was used as the catalyst for the conversion of glucose to lactic acid.Through the characterization of the samples and experiments,we found that the doping of nitrogen atoms did provide a certain catalytic activity.Finally,the influence of the catalyst on the catalytic performance under different reaction conditions and the recycling performance were investigated.The results showed that the fructose yield could reach 35.2%in 30 minutes at 200℃.