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.
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)
出处
《工业催化》
CAS
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)。
