The yttria-stabilized zirconia(YSZ)film was fabricated on the La 0.8 Sr 0.2 MnO 3(LSM)substrate by electrochemical deposition.The effects of electrochemical deposition conditions on morphological structure of Y(OH) 3 ...The yttria-stabilized zirconia(YSZ)film was fabricated on the La 0.8 Sr 0.2 MnO 3(LSM)substrate by electrochemical deposition.The effects of electrochemical deposition conditions on morphological structure of Y(OH) 3 -Zr(OH) 4 film were studied.The optimal conditions for depositing homogeneous and compact hydroxide film were obtained.The experimental results show that the density of the electrophoretic deposition film is increased remarkably if electrochemical deposition is applied to fill in the pores.展开更多
Nano Y2O3:Eu3+ fluorescence powder was prepared by thermal decomposition of the rare earth citric acid complexes.The structure,size,morphology and luminescent properties of fluorescence powder were investigated by mea...Nano Y2O3:Eu3+ fluorescence powder was prepared by thermal decomposition of the rare earth citric acid complexes.The structure,size,morphology and luminescent properties of fluorescence powder were investigated by means of XRD and TEM.The results show that the crystal structure of nano Y2O3:Eu3+fluorescence powder is cubic,and the size of the particles is between 20 nm and 60 nm.The phosphors has the maximum excitation peak at 248 nm,and the maximum emission peak at 615 nm.展开更多
Nanosize TiO 2,Y 2 O 3/TiO 2 particles were prepared by the sol-gel process. The structur e was characterized by means of XRD,TEM. The photoelectric properties of the nan oparticles were studied by PL. The thickness a...Nanosize TiO 2,Y 2 O 3/TiO 2 particles were prepared by the sol-gel process. The structur e was characterized by means of XRD,TEM. The photoelectric properties of the nan oparticles were studied by PL. The thickness and the surface of the carboxymethy l cellulose film was measured by SEM. Based on a model reaction, the photocataly tic degradation of methylene blue with positive charge was investigated in TiO 2, Y2O3/TiO 2 nanopowder composite films irradiated by UV lamp. The results revealed that the degradation process belonged to the first-order k inetic reaction.展开更多
文摘The yttria-stabilized zirconia(YSZ)film was fabricated on the La 0.8 Sr 0.2 MnO 3(LSM)substrate by electrochemical deposition.The effects of electrochemical deposition conditions on morphological structure of Y(OH) 3 -Zr(OH) 4 film were studied.The optimal conditions for depositing homogeneous and compact hydroxide film were obtained.The experimental results show that the density of the electrophoretic deposition film is increased remarkably if electrochemical deposition is applied to fill in the pores.
文摘Nano Y2O3:Eu3+ fluorescence powder was prepared by thermal decomposition of the rare earth citric acid complexes.The structure,size,morphology and luminescent properties of fluorescence powder were investigated by means of XRD and TEM.The results show that the crystal structure of nano Y2O3:Eu3+fluorescence powder is cubic,and the size of the particles is between 20 nm and 60 nm.The phosphors has the maximum excitation peak at 248 nm,and the maximum emission peak at 615 nm.
基金Support Foundation of Fujian Education Bureau( K04026) Support Foundation of Fujian Development &Reformation Committee(04FJSD)
文摘Nanosize TiO 2,Y 2 O 3/TiO 2 particles were prepared by the sol-gel process. The structur e was characterized by means of XRD,TEM. The photoelectric properties of the nan oparticles were studied by PL. The thickness and the surface of the carboxymethy l cellulose film was measured by SEM. Based on a model reaction, the photocataly tic degradation of methylene blue with positive charge was investigated in TiO 2, Y2O3/TiO 2 nanopowder composite films irradiated by UV lamp. The results revealed that the degradation process belonged to the first-order k inetic reaction.
