Phosphorus and nitrogen co-doped graphene for catalytic dehydrochlorination of 1,2-dichloroethane

作     者：Haonan Yu Xiaofeng Yang Hongbin Yang Jinming Xu Yanqiang Huang Haonan Yu;Xiaofeng Yang;Hongbin Yang;Jinming Xu;Yanqiang Huang

作者机构：CAS Key Laboratory of Science and Technology on Applied CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2023年第64卷第12期

页      面：149-155页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the Chinese Academy of Sciences Project for Young Scientists in Basic Research,China(YSBR-022) the National Natural Science Foundation of China,China(21925803) the Youth Innovation Promotion Association CAS,China 

主　　题：Catalysis Nanomaterials Fixed-bed Dehydrochlorination Doped graphene 

摘      要：A phosphorus and nitrogen co-doped graphene(PNG)was developed via a two-step pyrolysis approach through the intermedium of g-C_(3)N_(4) template and glyphosate as the phosphorus source,and was used for the catalytic dehydrochlorination of 1,2-dichloroethane(EDC)to vinyl chloride monomer(VCM)*** characterization results indicate that a volcano relationship of surface area and surface properties with the usage of phosphorus precursor was observed,and the sample of PNG-900-6 possesses not only the thin film structure with enhanced surface area but also the smaller grain size of PNG ***,such PNGs show a great improvement of catalytic performance in the dehydrochlorination of EDC,and the PNG-900-6 catalyst behaves the best with a 4-times higher activity than that on the nitrogen doped graphene(NG).It was also proved that the synergetic effect of the unique P-C coordination on the graphene to generate more quaternary nitrogen species was crucial in determining the catalytic performance of EDC *** results demonstrate that the phosphorus and nitrogen co-doped graphene offers many advantages in physical structure and chemical property,and are also great potential on the catalytic application in the dehydrochlorination of 1,2-dichloroethane.