Spinel LiMn2O4 was synthesized by solid-state method,using Mn2O3 as manganese source. By X-ray diffraction, scanning electron microscope and electrochemical performance test, effects of impurity calcium from manganese source.ie. MnCO3on the electrochemical properties of spinel LiMn2O4 weresystematically...

Mesoporous NiCo2O4 nanocomposites have been successfully synthetized by a xerogel route followed by heat-treatment process using propylene oxide as a gelation agent. The prepared materials are characterized by X-ray diffraction, FESEM, HRTEM and N2 adsorption/desorption. The results suggest the NiCo2O4...

A simple method to fabricate pyroelectric sensors array using standard semiconductor process on Silicon substrate was investigated. 600 nm porous SiO2 film was prepared by spin coating, working as ultra-thin thermal insulator. Good insulation property was achieved owing to its extremely low thermal conductance....

Metal-organic frameworks have drawn great attention over the last two decades owing to their interesting structures and potential applications in various areas such as gas storage, catalysis and energy storage. This porous crystalline material also has potential application in lithium-ion batteries as...

The texturization of monocrystalline silicon wafers using different K2CO3 concentrations under different times and temperatures solution has been investigated. In this paper, the pyramid density, size and uniformity on the wafer surface were discussed in different variables. We found that texturing time...

Gallium nitride (GaN) has attracted much attention for a long time as a promising material for semiconductor device application in the transistors, visible light-emitting sources and high powder diodes. Many investigations are paid to the synthesis method, the process of crystal growth, structure and...

The tin oxide ceramics electrode were prepared by the traditional solid phase sintering method. Influence of different ZnO doping amount on the microstructure and electroconductibility of the ceramics by SEM and XRD and other analytical instrument and the relationship between composition, performance...

The development of white organic light emitting diodes (WOLEDs) holds great promise since they combine the potentialities of high efficiency and inexpensive production with the appealing features of high-color-quality white light. Nevertheless, reliability and color quality still need to be optimized...

We perform first-principles calculations to study the electronic structures and optical properties of rutile SnNxO2-x as a possible photocatalytic material. It is found that N incorporation lead to the enhancement of p states in the energy gap and the decrease of band gap. The optical transition between...

MnO2 is directly deposited on active carbon (AC) to synthesize AC/MnO2 composite to improve the capacitance of electrode material. AC/MnO2 composites are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2 adsorption-desorption, and the electrochemical properties are evaluated...

Both two-dimensional (2D) ZnO nanobowl arrays and three-dimensional (3D) ZnO inverse opals were fabricated using hydrothermal method with assistance of the three-dimensional colloidal crystal templates. Scanning electron microscope measurements showed the morphological evolutions of ZnO from rods to...