Heterobimetallic CoCeO_(x) derived from cobalt partially-substituted Ce-UiO-66 for chlorobenzene efficient catalytic destruction

作     者：Lu Li Shuangshuang Fu Dan Tao Jiaxun Zhang Mingjiao Tian Jianwen Shi Mudi Ma Chi He Lu Li;Shuangshuang Fu;Dan Tao;Jiaxun Zhang;Mingjiao Tian;Jianwen Shi;Mudi Ma;Chi He

作者机构：State Key Laboratory of Electrical Insulation and Power EquipmentCenter of Nanomaterials for Renewable EnergySchool of Electrical EngineeringXi'an Jiaotong UniversityXi'an 710049China School of Environmental and Municipal EngineeringXi'an University of Architecture and TechnologyXi'an 710055China College of Geology and EnvironmentXi'an University of Science and TechnologyXi'an 710054China State Key Laboratory of Multiphase Flow in Power EngineeringSchool of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049China School of Human Settlements and Civil EngineeringXi'an Jiaotong UniversityXi'an 710049China 

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

年 卷 期：2023年第41卷第6期

页      面：810-819,I0001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 the National Natural Science Foundation of China(22106124,22276145) the Natural Science Foundation of Shaanxi Province(2021JQ-011) 

主　　题：Ce-UiO-66 CoCeO_(x)bimetallic oxide Chlorobenzene Catalytic oxidation Reaction mechanism Rare earths 

摘      要：Here,a metal-organic framework(MOF)-templated strategy was applied to synthesize the CoCeO_(x) bimetallic catalysts by calcining Co partially-substituted *** is indicated that the substituted Co limited Ce cations in Ce-UiO-66 framework,which affects its growth and structure crystallinity to some *** pyrolysis treatment,the derived bimetallic oxide(CoCeO_(x)-M)can basically keep the octahedral structure and the surface area is much higher than the bulk metal composite oxide(CoCeO_(x)-B)prepared by traditional *** reveal that CoCeO_(x)-M performs the best chlorobenzene degradation capacity,superior stability and vapor tolerance compared with those of CeO_(2)-M(derived from Ce-UiO-66)and CoCeO_(x)-*** the same time,it is favorable to inhibit the formation of CO during the oxidation *** superior catalytic performance of CoCeO_(x)-M is attributed to a good dispersion of metal cations,high surface area and active oxygen concentration,and good redox ***,the formation of organic byproducts especially chlorinated organics can be obviously prohibited over CoCeO_(x)-M compared with that of CeO_(2)-*** study reveals that chlorobenzene dissociates on the surface of CoCeO_(x)-M to form carboxylates such as acetate species,maleate and phenolate before finally oxidized into CO_(2),H_(2)O,and *** present work poses new insights into the fabrication of efficient catalysts for industrial CVOC purification.