Mechanism of CeO_(2) synthesized by thermal decomposition of Ce-MOF and its performance of benzene catalytic combustion

作     者：Jie Zheng Zhuo Wang Zhu Chen Shufeng Zuo Jie Zheng;Zhuo Wang;Zhu Chen;Shufeng Zuo

作者机构：Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals ProcessShaoxing UniversityShaoxing 312000China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2021年第39卷第7期

页      面：790-796,I0002页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project supported by Zhejiang Public Welfare Technology Research Project(LGG19B070003) the Foundation of Science and Technology of the Shaoxing City(2018C10019) the National Natural Science Foundation of China(21577094) 

主　　题：Thermal decomposition Ce-MOF Mechanism Structure-effect relationship Benzene Catalytic combustion 

摘      要：In this paper,the formation mechanism of mesoporous CeO_(2) synthesized by thermal decomposition of Ce-MOF and its performance of benzene catalytic combustion,as well as the structure-activity relationship between them were studied in *** self-assembly process and physicochemical properties of CeO_(2) were characterized by thermogravimetry analysis,powder X-ray diffraction,N2 adsorption/desorption,high-resolution transmission electron microscopy and X-ray photoelectron spectroscopy *** results show that Ce-MOF is completely decomposed into pure mesoporous CeO_(2) when the decomposition temperature is higher than 400℃.At this threshold temperature,CeO_(2)(400) has the largest specific surface area and pore volume of 114 m^(2)/g and 0.152 cm^(3)/g,***_(2)(400) exhibits very high catalytic activity for benzene combustion,which can completely catalyze the degradation of benzene at 260℃.Meanwhile,the mesoporous CeO_(2)(400) supported Pt nanocrystalline catalysts were prepared by high temperature solution-phase reduction ***/CeO_(2)(400)can completely degrade benzene at about 200℃ and represents high durability and good waterresistance for benzene combustion during 100 h of continuous reaction.