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新颖的具有项链结构的一维介孔磷酸铈材料通过一种简单方法(水包油的“微型反应器”)成功合成。通过SEM,TEM,XRD和氮气吸附对合成材料形貌、晶体结构、比表面积及孔径分布进行表征分析。合成的磷酸铈为六方相晶体结构;由宽约10nm,长10~20nm的纳米珠组成具有项链结构的链状纳米结构,链长度约几百纳米;氮气吸附表征证明材料具有典型介孔特征,比表面积为74m2/g,孔径大小集中在2~3nm和10~12nm。项链结构的形成可通过定向连接聚集生长机理实现。在合成制备其它新型复杂纳米材料中会起到积极作用。
The novel one-dimensional mesoporous cerium phosphate material with necklace structure was successfully synthesized by a simple method (oil-in-water “microreactor”). The morphology, crystal structure, specific surface area and pore size distribution of the synthesized materials were characterized by SEM, TEM, XRD and nitrogen adsorption. The synthesized cerium phosphate has a hexagonal phase crystal structure; a nanochain having a width of about 10 nm and a length of 10 to 20 nm forms a chain-like nanostructure with a chain length of about several hundred nanometers; the nitrogen adsorption characterization proves that the material has typical mesopore characteristics, The specific surface area of 74m2 / g, pore size concentrated in the 2 ~ 3nm and 10 ~ 12nm. The formation of necklace structure can be achieved through the directional connection aggregation growth mechanism. Synthetic preparation of other new complex nanomaterials will play an active role.