کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
74510 | 49093 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Ultrasonic synthesis and electrochemical characterization of V2O5/mesoporous carbon composites Ultrasonic synthesis and electrochemical characterization of V2O5/mesoporous carbon composites](/preview/png/74510.png)
V2O5/ordered mesoporous carbon (CMK-3) composites were prepared by an ultrasonic method. The microstructures of such composites were characterized by X-ray diffraction (XRD), nitrogen adsorption and desorption, X-ray photoelectron spectra (XPS) and transmission electron microscopy (TEM). The results showed that the ultrasonic synthesis method was flexible and efficient to highly disperse V2O5 nanoparticles in CMK-3. The electrochemical property of the V2O5/CMK-3 composites has also been investigated. The specific capacitance of the new composites was significantly improved (124 F/g) compared to that of CMK-3 (77 F/g). The high capacitance was mainly derived from the high specific surface area of CMK-3 and the pseudo-capacitance of V2O5. Therefore, the V2O5/CMK-3 composites can be a potential electrode material applied in the capacitors.
Journal: Microporous and Mesoporous Materials - Volume 126, Issues 1–2, November 2009, Pages 58–64