石墨烯基氮掺杂层级孔碳负载钯及其PTA加氢精制应用  

Graphene based nitrogen doped hierarchical porous carbon supported Pd and its application in PTA hydrofining

作　　者：殷迪 郑晴 张晓利 卞雯 杨叶伟 何观伟 Yin Di;Zheng Qing;Zhang Xiaoli;Bian Wen;Yang Yewei;He Guanwei(The Northwest Research Institute of Chemical industry Co.,Ltd.,Xi’an 710061,Shaanxi,China)

机构地区：[1]西北化工研究院有限公司,陕西西安710061

出　　处：《工业催化》2022年第10期69-76,共8页Industrial Catalysis

基　　金：陕西延长石油(集团)有限责任公司科技计划项目(ycsy2020jcyj-A-03)。

摘　　要：以氧化石墨烯为结构导向剂,间苯二酚-甲醛-三聚氰胺为前驱体,其中三聚氰胺为氮源,经溶胶-凝胶法及炭化制备得到厚度均一可控、氮含量可调的三维堆叠石墨烯基氮掺杂层级孔碳纳米片(NCNS),负载Pd后的Pd/NCNS催化剂用于PTA加氢精制。与商用Pd/C催化剂相比,制备的Pd/NCNS催化剂表现出更高的活性,这可归因于其较短的扩散通道、氮掺杂及其所致的高Pd分散度。With graphene oxide as the structure directing agent,resorcinol-formaldehyde-melamine as the precursor,and melamine as the nitrogen source,three-dimensional stacked graphene based nitrogen doped hierarchical porous carbon nanosheets(NCNS)with uniform thickness and adjustable nitrogen content were prepared by sol-gel and carbonization.After loaded with Pd,Pd/NCNS catalyst was applied in PTA hydrofining.Compared with commercial Pd/C catalyst,Pd/NCNS catalyst shows higher activity,which can be attributed to its shorter diffusion channel,nitrogen doping and its high Pd dispersion.

关 键 词：精细化学工程 石墨烯 氮掺杂碳 层级孔 PD/C催化剂 PTA加氢精制 

分 类 号：TQ426.94[化学工程] O643.36[理学—物理化学]