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纳米氧化镧及其复合氧化物不同于常规微米氧化镧及其复合氧化物,既显示出纳米材料所具有的独特性能,如界面效应、小尺寸效应、宏观量子隧道效应等,又表现出比表面积大、催化活性高、吸附选择性强、晶格氧迁移等优良特性。近年来,纳米氧化镧及其复合氧化物应用范围随其新颖特性的发现而不断拓展,同时也吸引了国内外很多学者对其开展了大量的研究工作,对常用的传统制备方法(如固相法、水热法、沉淀法、溶胶凝胶法)不断进行改进,并提出如静电纺丝法和反相乳液法等多种新型制备方法来解决因制备方法本身的局限性而造成的纳米粒子间容易发生团聚、粒度分布不均等问题。综述了静电纺丝法、反相乳液法和熔盐法等制备方法的最新研究情况,也深入介绍了纳米氧化镧及其复合氧化物在光催化材料、传感器材料、电池电极材料、发光材料等应用领域的国内外最新研究进展。
Nanometer lanthanum oxide and its composite oxide is different from the conventional micron lanthanum oxide and its composite oxide, both shows the unique properties of nanomaterials, such as interface effect, small size effect, macroscopic quantum tunneling effect, but also shows the specific surface area Large, high catalytic activity, adsorption selectivity, lattice oxygen migration and other fine features. In recent years, the scope of the application of nano-lanthanum oxide and its composite oxide with the discovery of its new features continue to expand, but also attracted many scholars at home and abroad to carry out a large number of its research work, the commonly used conventional preparation methods (such as solid phase Method, hydrothermal method, precipitation method, sol-gel method) are continuously improved, and many new preparation methods such as electrospinning method and reverse phase emulsion method are proposed to solve the problems of the preparation method itself caused by the limitations of the nanoparticles Between the reunion prone, uneven distribution of particle size. The latest research on the preparation methods of electrospinning method, inverse emulsion method and molten salt method are also reviewed. The photocatalytic materials, sensor materials, battery electrode materials, luminescent materials and so on Application of the latest research progress at home and abroad.