氮掺杂碳纳米管负载钯基催化剂在间二硝基苯加氢中的应用  

Application of nitrogen-doped carbon nanotube-supported palladium-based catalysts in hydrogenation of m-dinitrobenzene

作　　者：刘加帅 王楠 郑辉东[1,2] 范立海 吴丹 Liu Jiashuai;Wang Nan;Zheng Huidong;Fan Lihai;Wu Dan(College of Chemical Engineering,Fuzhou University,Fuzhou 350116,Fujian,China;Qingyuan Innovation Laboratory,Quanzhou 362801,Fujian,China)

机构地区：[1]福州大学化工学院,福建福州350116 [2]清源创新实验室,福建泉州362801

出　　处：《工业催化》2024年第8期24-30,共7页Industrial Catalysis

基　　金：泉州市引进高层次人才团队项目(2021CT006)。

摘　　要：制备Pd负载在氮掺杂碳纳米管(NCNTs)载体上的Pd/NCNTs催化剂,并将其用于间二硝基苯催化加氢生成间苯二胺的反应。研究NCNTs的不同制备方法对Pd/NCNTs催化剂催化性能的影响。结果表明,Pd纳米颗粒可以更均匀地分散在NCNTs载体上,可与载体形成强相互作用。当NCNTs中的氮含量越高且吡啶氮占比较高时,Pd/NCNTs催化剂的加氢活性越高。在间二硝基苯催化加氢反应中,Pd/NCNTs催化剂相较于Pd/CNTs催化剂的加氢活性提高了69%。In this paper,Pd/NCNTs catalysts of Pd supported on nitrogen-doped carbon nanotubes(NCNTs)were prepared and used in the catalytic hydrogenation of m-dinitrobenzene to m-phenylenediamine.The effects of different preparation methods of NCNTs on the catalytic performance of Pd/NCNTs catalysts were studied.The experimental results show that Pd nanoparticles can be more evenly dispersed on the carrier of NCNTs and can interact strongly with the carrier.The hydrogenation activity of Pd/NCNTs catalyst is higher when the nitrogen content in NCNTs is higher and the proportion of pyridine nitrogen is higher.In the catalytic hydrogenation of m-dinitrobenzene,the hydrogenation activity of Pd/NCNTs catalyst is 69%higher than that of Pd/CNTs catalyst.

关 键 词：催化剂工程 钯催化剂 硝基加氢 氮掺杂 间二硝基苯 吡啶氮 

分 类 号：TQ426.6[化学工程] O643.36[理学—物理化学]