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A new method was used to synthesize the cathode material Li1+xV3O8, and it simplified the process of preparing and shortened the time of reaction in comparison with previous Sol-gel method with the citric acid. The characteristics of Li1+xV3O8 were investigated by X-ray diffraction, thermogravimetry and differential thermal analysis, and transmission electron microscopy, which showed the material Li1+xV3O8 with a good thermal stability had been obtained via the new method. The electrochemical performance of Li1+xV3O8 was measured, which indicated that the material obtained had a remarkable discharge capacity of 380mAh/g and a good cycle performance.

We herein present a facile but efficient CTAB-assisted solution-phase synthesis and postannealing approach for preparing a series of necklace-like phosphors, including SrAl2O4:Eu2+, Dy3+, CaAl2O4:Eu2+, Dy3+, and BaAl2O4:Eu2+, Dy3+. The as-prepared samples were characterized by means of XRPD, FESEM, TEM, and PL techniques. The experimental results indicate that CTAB plays the crucial role in the formation of needle-like precursors in solution, which are further converted into the final phosphors in a reducing atmosphere of H2/Ar (15% + 85%). To investigate the optical characteristics of the aluminate phosphors, we conducted the excitation, emission, and afterglow decaying measurements at room temperature. It is noteworthy that the aluminate phosphors are so floppy after being calcined at 1300 °C for 5 h, which effectively avoids the traditional crushing of hard phosphor blocks into small particles.