CAJ | 학술논문

采用牺牲模板法和水热法制备了3种形貌Mn2 O 3(核壳球、空心立方体、纳米棒)，使用 X 射线衍射(XRD)、扫描电镜(SEM)和透射电镜(TEM)对其进行表征，结果表明，不同形貌 Mn2 O 3具有相同的晶体结构.在此基础上，研究了这3种Mn2 O 3对氯苯的催化活性.活性测试结果表明，不同形貌Mn2 O 3对氯苯的催化性能有显著差异，其活性顺序为空心立方体＞核壳球＞纳米棒.H2-TPR和 BET 结果表明，不同形貌Mn2 O 3中氧物种的流动性及催化剂比表面积的相对大小是决定其催化性能的重要因素.
채용희생모판법화수열법제비료3충형모Mn2 O 3(핵각구、공심립방체、납미봉)，사용 X 사선연사(XRD)、소묘전경(SEM)화투사전경(TEM)대기진행표정，결과표명，불동형모 Mn2 O 3구유상동적정체결구.재차기출상，연구료저3충Mn2 O 3대록분적최화활성.활성측시결과표명，불동형모Mn2 O 3대록분적최화성능유현저차이，기활성순서위공심립방체＞핵각구＞납미봉.H2-TPR화 BET 결과표명，불동형모Mn2 O 3중양물충적류동성급최화제비표면적적상대대소시결정기최화성능적중요인소.
The Mn2 O3 catalysts with typical morphologies,such as core-shell spheres,hollow cubes and one-di-mensional nanorods were synthesized by sacrificial template and hydrothermal methods,and their catalytic properties for oxidation of chlorobenzene (CB)were tested.The samples were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM),transmission electron microscopy (TEM)and so on.The XRD result indicated that all samples had the same crystal structure.The catalytic activity tests showed that the per-formance for CB oxidation depended on the morphology of Mn2 O3 ,following in the order of hollow cubes >core-shell spheres> nanorods.The H2-TPR and N2 adsorption-desorption results demonstrated that the mobili-ty of oxygen and specific surface area of the catalysts were considered as the dominant factors for low tempera-ture catalytic destruction of CB.