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Dynamic Electronic Structure in Transition Metal Oxides Jiangong Li1,Haiying He1 (1.Department of Materials Science, Lanzhou University, Lanzhou 730000) 摘要:The isomer shift of La1-xCaxFeO3 decreases gradually from the value for trivalent iron to that for tetravalent iron, as the Ca content x increases from 0 to 1. This indicates that iron in La1.x-CaxFeO3 has an intermediate valence state......
Catalytic combustion of diesel soot over K2NiF4-type oxides La2-xKxCuO4 LIANG Cunzhen1,WANG Xuezhong2,ZHU Ling1 (1.Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;2.Chinese Research Academy of Environmental Sciences, Beijing 100012, China) Abstract:Nanostructure K2NiF4 type oxides La2-xKxCuO4 complex oxides were prepared using......
Practical Control of a Ball-Screw-Driven Stage for Long-Range Nanometer Positioning卢礼华Center for Precision Engineering,Harbin Institute of Technology摘 要:A DC motor and ball-screw-driven stage is studied for long-range nanometer positioning.The closed-loop system with high-gain PID controller is specially designed for high-precision point-to-point (PTP......
Conductivity of cerium oxides doped by trivalent cations ZHANG Hong(张鸿), WANG Jian (汪健), WANG Shen-cun(王申存), LI Zhi-cheng(李志成) School of Materials Science and Engineering, Central South... have pure single fluorite-type phase in all doped cerium oxides. Impedance measurement results show that the conductivities and activation energies of CeO2-based oxides depend closely on the dopants......
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Oxygen Storage Capacity and Adsorptive Property of Praseodymium Oxides 方明1,万颖2,刘毅廷1,马建新3 (1.Institute for Environment and Sustainable Development, Hong Kong University of Science and Technology... storage and adsorptive properties of praseodymium oxides were investigated by pulse experiments and temperature-programmed desportion/reduction (TPD/TPR) experiments. Pr2O3 possesses the similar oxygen......
Preparation and Activity of a Nanometer Anti-microbial Polyurethane关燕清1,2,彭长连1,21. School of Life Science,South China Normal University2. MOE Key laboratory of Laser Life Science,South China Normal...-immobilized cell factors was observed by FESEM as well as CSLM at the level of nanometer. Finally, the product with elementary test of anti-microbial was also evaluated .关键词:......
Influence of Lanthanum on Synthesizing of SiC Nanometer Powder张宁,龙海波,王柳燕,才庆魁摘 要:Low cost silicon carbon nanometer powder was synthesized by carbothermal reduction method with nanometer SiO2 and carbon as raw material. Its synthesis thermodynamics were discussed. The influence of La on TG-DSC curve was also analyzed. It indicated that the synthesis......
Preparation, characterization and photocatalytic properties of nanometer zinc ferriteXiaojun Guo, Youli Qi, Xien Li, Shengyin Li, Wu Yang, and Jinzhang GaoChemistry and Chemical Engineering College... Microscopy). These results showed that the range of particle size of ZnFe2O4 is about 15-25 nm. Photocatalytic activities of nanometer ZnFe2O4 were also evaluated by degradation of the curcumin solution......
