Enhanced hydrodeoxygenation of lignin-derived anisole to arenes catalyzed by Mn-doped Cu/Al_(2)O_(3)  

作　　者：Xiaofei Wang Shixiang Feng Yue Wang Yujun Zhao Shouying Huang Shengping Wang Xinbin Ma 

机构地区：[1]Key Laboratory for Green Chemical Technology of Ministry of Education,Collaborative Innovation Centre of Chemical Science and Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin,300072,China [2]Joint School of National University of Singapore and Tianjin University,International Campus of Tianjin University,Binhai New City,Fuzhou,350207,China

出　　处：《Green Energy & Environment》2023年第3期927-937,共11页绿色能源与环境（英文版）

基　　金：supported by National Natural Science Foundation of China (21938008).

摘　　要：Lignin is a renewable carbon resource to produce arenes due to its abundant aromatic structures.For the liquid-phase hydrodeoxygenation(HDO)based on metallic catalysts,the preservation of aromatic rings in lignin or its derivatives remains a challenge.Herein,we synthesized Mndoped Cu/Al_(2)O_(3) catalysts from layered double hydroxides(LDHs)for liquid-phase HDO of lignin-derived anisole.Mn doping significantly enhanced the selective deoxygenation of anisole to arenes and inhibited the saturated hydrogenation on Cu/Al_(2)O_(3).With Mn doping increasing,the surface of Cu particles was modified with MnO_(x) along with enhanced generation of oxygen vacancies(Ov).The evolution of active sites structure led to a controllable adsorption geometry of anisole,which was beneficial for increasing arenes selectivity.As a result,the arenes selectivity obtained on 4Cu/8Mn4AlO_(x) was increased to be more than 6 folds of that value on 4Cu/4Al_(2)O_(3) over the synergistic sites between metal Cu and Ov generated on MnO_(x).

关 键 词：ANISOLE HYDRODEOXYGENATION Oxygen vacancy ARENES Metal oxide 

分 类 号：TK6[动力工程及工程热物理—生物能] TQ241[化学工程—有机化工] TQ426