| 摘要: |
| 合理使用生物质，对解决环境污染和资源短缺问题大有裨益.5-羟甲基糠醛（5-HMF）可以由生物质衍生的糖类脱水获得，进一步完全氢化可以转化为具有高附加值的2，5-二羟甲基四氢呋喃（DHMTHF）.以表面胺基功能化介孔二氧化硅小球（SiO2-NH2）为载体，采用等体积浸渍法制备了高分散钌（Ru）基（Ru-B）纳米催化剂（Ru-B/SiO2-NH2）.以2-丁醇为溶剂，将制得的Ru-B/SiO2-NH2用于5-HMF加氢制DHMTHF.在160℃，2.76 MPa，800 r·min-1的条件下，5-HMF转化率为100%，DHMTHF的产率为87%.与目前报道的催化剂相比，该催化体系可以在更为温和的条件下获得较好的效果.构效关系研究表明：载体表面胺基功能化可以起到锚定和高度分散Ru-B非晶态合金纳米粒子的作用. |
| 关键词: 钌（Ru）基（Ru-B） 5-羟甲基糠醛（5-HMF） 2，5-二羟甲基四氢呋喃（DHMTHF） 完全加氢 生物质催化转化 |
| DOI：10.3969/J.ISSN.1000-5137.2020.02.004 |
| 分类号:O643.32 |
| 基金项目:国家自然科学基金面上项目（21972093） |
|
| Synthesis of Ru-based nanocatalyst for 5-hydroxymethylfurfural hydrogenation to 2, 5-dihydroxymethyltetrahydrofuran |
|
LAN Zijie, WANG Cong, LI Hui
|
|
College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
|
| Abstract: |
| Rationaluse ofbiomassis of greatbenefittosolving environmentalpollution andresourceshortage.5-Hydroxymethylfurfural (5-HMF)can be obtained via dehydration of sugars derived from biomass, which can be converted into high-value-added 2, 5－dihydroxymethyltetrahydrofuran(DHMTHF)by further complete hydrogenation. High-dispersionruthenium(Ru)-based(Ru-B) nanocatalyst(Ru-B/SiO2-NH2)was synthesized with surface amino-functionalized mesoporous silica spheres(SiO2-NH2)as the carrier.During the hydrogenation of 5-HMF to DHMTHF, the as-prepared Ru-B/SiO2-NH2 was used as the catalyst with 2-butanol as the solvent.Under optimized reaction conditions(reaction temperature：160 ℃, reaction pressure：2.76 MPa), the conversion of 5-HMF was 100% and the selectivity to DHMTHF was 87%. Compared with the catalysts reported so far, better results can be achieved by the present catalytic system under milder conditions. Structure-activity relationship studies show that aminofunctionalization on the surface of the carrier can anchor and disperse Ru-B amorphous alloy nanoparticles. |
| Key words: ruthenium(Ru)-based(Ru-B) 5-hydroxymethylfurfural(5-HMF) 2, 5-dihydroxymethyltetrahydrofuran (DHMTHF) complete hydrogenation catalytic biomass conversion |
