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Selective Electrocatalytic Hydrogenation of 5-Hydroxymethylfurfural to 2,5-dihydroxymethylfuran on Bimetallic PdCu Alloy

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Chinese Journal of Structural Chemistry 2022年第5期41卷 63-69页

作者： Xu Yue Weixing Zhao Shuangyin Wang Yuqin Zou State Key Laboratory of Chem/Bio-Sensing and Chemometrics College of Chemistry and Chemical EngineeringAdvanced Catalytic Engineering Research Center of the Ministry of EducationHunan UniversityChangsha 410082China Shenzhen Institute of Hunan University Shenzhen 518057China

2,5-dihydroxymethylfuran(DHMF),obtained from 5-hydroxymethylfurfural(HMF)by electrochemical method,is a promising building block for ***,one challenge of this process is to reduce initial potential and improve catalytic *** this work,the PdCu bimetallic catalyst is prepared with an onset potential of-0.05 VRHE and a selectivity of 99%.Compared with the single Cu electrocatalyst,the adsorption of HMF and proton is improved by introducing of Pd,which is demonstrated by the electrochemical results and hydrogen production *** work provides an effective strategy to improve the selectivity of Cu-based electrocatalyst and builds a relationship between the adsorption capacity and the electrocatalytic performance.

关键词： biomass 2,5-dihydroxymethylfuran electrocatalyst bimetallic alloy hydrogenation

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Highly efficient production of 2,5-dihydroxymethylfuran from biomass-derived 5-hydroxymethylfurfural over an amorphous and mesoporous zirconium phosphonate catalyst

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Journal of Energy Chemistry 2019年第10期28卷 82-92页

作者： Lei Hu Ning Li Xiaoli Dai Yuqi Guo Yetao Jiang Aiyong He Jiaxing Xu Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology Jiangsu Collaborative Innovation Center of Regional Modern Agriculture &Environmental Protection School of Chemistry and Chemical Engineering Huaiyin Normal University

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.

关键词： 5-Hydroxymethylfurfural 2,5-dihydroxymethylfuran 2-Butanol Zirconium phosphonate catalyst Meerwein-Ponndorf-Verley reduction

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