Selective hydrogenation of lignin-derived compounds under mild conditions
作者:Lu Chen、Antoine P. van Muyden、Xinjiang Cui、Gabor Laurenczy、Paul J. Dyson
DOI:10.1039/d0gc00121j
日期:——
processes used in their production. Here, we show that well-defined Rh nanoparticles dispersed in sub-micrometer size carbon hollow spheres, are able to hydrogenate lignin derived products undermildconditions (30 °C, 5 bar H2), in water. The optimum catalyst exhibits excellent selectivity and activity in the conversion of phenol to cyclohexanol and other related substrates including aryl ethers.
木质素衍生化学品生产中的关键挑战是减少其生产中使用的能源密集型过程。在这里,我们显示了分散在亚微米尺寸的碳空心球中的定义明确的Rh纳米粒子能够在温和条件下(30°C,5 bar H 2)在水中氢化木质素衍生产品。最佳催化剂在苯酚向环己醇和其他相关底物(包括芳基醚)的转化中表现出出色的选择性和活性。
Reductive fractionation of woody biomass into lignin monomers and cellulose by tandem metal triflate and Pd/C catalysis
作者:Xiaoming Huang、Olivia M. Morales Gonzalez、Jiadong Zhu、Tamás I. Korányi、Michael D. Boot、Emiel J. M. Hensen
DOI:10.1039/c6gc02962k
日期:——
A catalytic process for the upgrading of woody biomass into mono-aromatics, hemi-cellulose sugars and a solid cellulose-rich carbohydrate residue is presented.
immobilized on an acidic supported ionic liquid phase (Ru@SILP-SO3H) as a multifunctionalcatalyst. The catalyst components are assembled through a molecular approach ensuring synergistic action of the metal and acid functions. The resulting catalyst is highly active for the hydrogenolysis of various diaryl ethers. For symmetric substrates such as diphenyl ether, hydrogenolysis is followed by full hydrodeoxygenation
The Effect of Sulfonate Groups in the Structure of Porous Aromatic Frameworks on the Activity of Platinum Catalysts Towards Hydrodeoxygenation of Biofuel Components
作者:M. A. Kalinina、L. A. Kulikov、K. A. Cherednichenko、A. L. Maximov、E. A. Karakhanov
DOI:10.1134/s0965544121090115
日期:2021.9
Abstract Platinumcatalysts based on porous aromatic frameworks (PAF-30 and PAF-30–SO3H) have been synthesized. Properties of the obtained catalysts have been assessed via hydrogenation of guaiacol, veratrole, and pyrocatechol at 250°С and hydrogen pressure 3.0 MPa in isopropanol medium. It has been shown that the presence of acidic sites in the catalyst significantly increases the yield of deoxygenation