文献类型：期刊文献

英文题名：The synergistic effect of Cu0 and Cu+ for one-step synthesis of aviation biofuel from biomass-derived ketones

作者：Li, Tan[1]; Su, Jing[1]; Yin, Linjia[1]; Zhang, Xiangkun[1]; Wang, Cong[1]; Li, Xinbao[2]; Zhang, Jing[3]; Wang, Kaige[1]

机构：[1] State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China; [2] Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, China; [3] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2023

卷号：26

期号：4

起止页码：1910

外文期刊名：Green Chemistry

收录：EI(收录号：20234615057536)

语种：英文

外文关键词：Acetone - Catalysts

摘要：A Cu-based catalyst was developed for one-step solvent-free synthesis of aviation biofuel from biomass-derived ketones, including acetone, cyclopentanone, cyclohexanone, and 2-pentanone. Under the optimal working conditions, the conversion rate of acetone, cyclopentanone, cyclohexanone and 2-pentanone of 100% can be achieved by using Cu/Al2O3. 79.7 c% maximum carbon yield of liquid hydrocarbons with 89.5% selectivity of aviation biofuel was obtained under the conditions of 1.0 MPa H2, 280 °C, and 2 h?1 WHSV. The effects of the calcination temperature on the acidity and basicity of the catalyst, as well as the valence and dispersion of Cu species, were investigated. Based on DFT calculations and in situ DRIFTS results, the preferred adsorption of carbonyl groups and efficient dissociation of hydrogen on Cu+ increased the local concentration of H and feedstock on the catalyst surface, accelerating the rate-determining step that predominated on Cu0. The synergistic effect of Cu0 and Cu+ enhanced the formation of aviation biofuel. ? 2024 The Royal Society of Chemistry.