【摘 要】
：
The development of high-efficiency and low-cost catalysts is very crucial for the MeerweinPonndorf-Verley (MPV) reduction of biomass-derived 5-hydroxymethylfurfural (HMF) into 2,5-dihydroxymethylfuran (DHMF).In this work,an amorphous and mesoporous zircon
【机 构】
：
Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovat
论文部分内容阅读
The development of high-efficiency and low-cost catalysts is very crucial for the MeerweinPonndorf-Verley (MPV) reduction of biomass-derived 5-hydroxymethylfurfural (HMF) into 2,5-dihydroxymethylfuran (DHMF).In this work,an amorphous and mesoporous zirconium phosphonate catalyst (Zr-DTMP),which is a zirconium-containing organic-inorganic nanohybrid,was successfully designed and synthesized by the simple assembly of zirconium tetrachloride (ZrCl4) and diethylene triaminepenta(methylene phosphonic acid) (DTMP).Satisfactorily,when Zr-DTMP was employed for the MPV reduction of HMF in the presence of 2-butanol (secBuOH),DHMF yield could be achieved as 96.5％ in 3 h under a relatively mild reaction temperature of 140 ℃.Systematic investigations indicated that this high catalytic activity should be mainly due to the cooperative role of enhancive Lewis acid site (Zr4+) and Lewis base site (O2-) in activating the carbonyl group of HMF and dissociating the hydroxyl group of secBuOH,respectively.Additionally,Zr-DTMP showed excellent catalytic stability,when it was successively used 5 recycles,its surface characteristics and textural properties still remained almost unchanged,and so,the catalytic activity was not obviously affected.More interestingly,Zr-DTMP could also be applied for the selective reduction of other biomass-derived carbonyl compounds,such as 5-methylfurfural (MF),furfural (FF),levulinic acid (LA),ethyl levulinate (EL) and cyclohexanone (CHN),into the corresponding products with high yields,which is beneficial to the effective synthesis of various valuable bio-based chemicals.
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