活性羽毛碳催化剂催化5-羟甲基糠醛消去合成2,5-二甲基呋喃  

Catalytic synthesis of 2,5-dimethylfuran by elimination of 5-hydroxymethylfurfural over activated feather carbon catalysts

作　　者：康博 赵玺 郝盼盼 周生虎 谌春林[2] 张建[2] KANG Bo;ZHAO Xi;HAO Panpan;ZHOU Shenghu;CHEN Chunlin;ZHANG Jian(School of Materials Science and Chemical Engineering,Ningbo University,Ningbo 315211,China;Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]宁波大学材料科学与化学工程学院,浙江宁波315211 [2]中国科学院宁波材料技术与工程研究所,浙江宁波315201 [3]华东理工大学化学与分子工程学院,上海200237

出　　处：《宁波大学学报（理工版）》2024年第6期80-89,共10页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家自然科学基金(22072170,U23A20125);浙江省重点研发计划(2021C03170)。

摘　　要：在生物衍生的燃料中,2,5-二甲基呋喃(DMF)具有优异的能量密度和高辛烷值,被认为是汽油的理想替代品.将羽毛衍生活化得到的层状多孔碳(AFC)作为催化剂载体,负载Pd纳米粒子作为催化剂,将5-羟甲基糠醛(HMF)转化为DMF.其中Pd/AFC-3催化剂具有相对较大的比表面积和合适的孔结构,使用甲酸作为氢供体,可实现99%的HMF转化率和95%的DMF收率.此外,HMF的羟基被有效吸附在AFC表面,形成O-H···N或O-H···π的强相互作用,有望加速HMF的氢解.甲酸不仅作为醛基加氢的氢源,而且与羟基发生酯化反应,形成羟基酯,脱氧后形成DMF.与商用载体制备的催化剂相比,活性羽毛碳催化剂的催化活性出色,并可以维持多个催化循环.Among the bio-derived fuels,2,5-dimethylfuran(DMF) is considered as an ideal alternative to gasoline because of its excellent energy density and high octane number.Feather-derived layered porous carbon by activation with KOH(AFC) was used as catalyst support,and supported palladium nanoparticles were used as catalysts for the conversion of 5-hydroxymethylfurfural(HMF) to DMF.The Pd/AFC-3 catalysts achieved a 99% conversion of HMF and a 95% yield of DMF using formic acid as a hydrogen donor due to their relatively large specific surface areas and suitable pore structure.In addition,HMF was effectively adsorbed on the surface of AFC through the hydroxy group to form strong O-H···N or O-H···π interactions,which will be expected to accelerate the hydrogenolysis of HMF.Formic acid not only serves as an H source for the hydrogenation of aldehyde groups but also undergoes esterification with the hydroxy group to form formyloxy ester,which in turn forms DMF after deoxygenation.The catalytic activity of the catalyst is excellent to such an extent that it is even comparative to those catalysts prepared from commercial carriers,and it can be maintained for multiple catalytic cycles.

关 键 词：羽毛 生物质燃料 2 5-二甲基呋喃 甲酸 催化剂 

分 类 号：TQ426.81[化学工程]