Polyoxometalate-loaded Nanocellulose Sponge as a Novel Catalyst for the Regioselective Hydroboration of Phenylacetylene

作     者：GuoQing Yang CongCong Zhang BiJia Wang ZhiPing Mao Hong Xu Yi Zhong XueLing Feng XiaoFeng Sui 

作者机构：Key Lab of Science and Technology of Eco-textileMinistry of EducationCollege of ChemistryChemical Engineering and BiotechnologyDonghua UniversityShanghai201620China Innovation Center for Textile Science and Technology of DHUDonghua UniversityShanghai201620China 

出 版 物：《Paper And Biomaterials》 (造纸与生物质材料（英文）)

年 卷 期：2019年第4卷第2期

页      面：1-9页

学科分类：08[工学] 0822[工学-轻工技术与工程] 

基　　金：financially supported by the Fundamental Research Funds for the Central Universities(No.2232018A3-04,No.2232018-02,and No.2232018G-043) the Program of Introducing Talents of Discipline to Universities(No.105-07-005735) 

主　　题：cellulose nanofiber polyoxometalates catalyst immobilization hydroboration heterogeneous catalyst 

摘      要：In this work,an amino-modified cellulose nanofiber sponge was prepared and used as a support for polyoxometalate(POM)catalysts with a high loading efficiency.Fourier transform infrared spectroscopy,thermogravimetric analysis,and energy-dispersive X-ray spectroscopy revealed that an Anderson-type POM,(NH4)4[CuMo6O18(OH)6]·5H2O was successfully immobilized on the sponge based on electrostatic interactions.Morphological analysis indicated that the POM-loaded sponge retained its porous structure and that the POM was homogeneously distributed on the sponge walls.The POM-loaded sponge exhibited excellent mechanical properties by recovering 79.9%of its original thickness following a 60%compression strain.The POM-loaded sponge was found to effectively catalyze the hydroboration of phenylacetylenes,yielding excellent conversion and regioselectivity of up to 96%and 99%,respectively.Its catalytic activity remained unchanged after five reuse cycles.These findings represent a scalable strategy for immobilizing POMs on porous supports.