非贵金属催化剂Ni/AC选择性氢解木质素C-O键  

Ni/AC Nonnoble metal catalyst for selective hydrohydrolysis of CO bonds in lignin

作　　者：孟森 丁创驰 任传清[1] 杜全超 季建伟[1] MENG Sen;DING Chuang-chi;REN Chuan-qing;DU Quan-chao;JI Jian-wei(Faculty of Chemical and Environmental Sciences,Shaanxi University of Technology,Hanzhong 723000,China)

机构地区：[1]陕西理工大学化学与环境科学学院,陕西汉中723000

出　　处：《化学研究与应用》2024年第2期261-269,共9页Chemical Research and Application

摘　　要：用浸渍法制备了具有高活性的非贵金属催化剂Ni/AC,采用X射线粉末衍射(XRD)、高分辨扫描透射电镜(STEM)对催化剂进行了表征,并研究了催化剂、温度、时间、氢气压力等因素对苯基苯醚选择性裂解C-O键的影响。结果表明Ni/AC在木质素α-O-4模型化合物的氢解反应中表现出较高的活性和选择性,获得了较高收率的甲苯和苯酚(>65.5%)。除此之外该催化剂在真实木质素的氢解反应中也展示出较好的活性。A highly active non-noble metal catalyst Ni/AC was prepared by impregnation method,and the catalyst was characterized by X-ray powder dffraction(XRD)and high-resolution scanning transmission electron microscopy(STEM),and the ffeets of cata-lyst,temperature,time,hydrogen pressure and other factors on the selective cleavage of CO bonds by phenyI phenyl ether were studied.The resuls showed that Ni/AC showed high activity and selectivity in the hydrogenolysis reaction of lignin a-0-4 model compounds,and higher yields of toluene and phenol(>65.5%)were obtained.In addion,the catalyst also showed good activity in the hydrogenolysis reaction of real lignin.

关 键 词：木质素 Ni/AC 氢解 芳香化合物 浸渍法 

分 类 号：O657[理学—分析化学]