کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1278006 | 1497602 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Characterization of CoB–silica nanochains hydrogen storage composite prepared by in-situ reduction Characterization of CoB–silica nanochains hydrogen storage composite prepared by in-situ reduction](/preview/png/1278006.png)
The CoB–silica nanochains hydrogen storage composite was prepared by in-situ reduction of cobalt salt on the surface of amine-modified silica nanospheres. The structure and morphology of the sample were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The valence state of atoms was characterized by X-ray photoelectron spectroscopy (XPS). The electrochemical properties of the sample were also investigated. The results demonstrated that the CoB–silica nanochains hydrogen storage composite possessed amorphous nanochains structure by a series of nanospheres connecting in one-dimension. In addition, the material as electroactive negative electrodes showed high reversible discharge capacity (about 500 mAh/g in the first cycle) and good cycling stability. A properly electrochemical reaction mechanism was constructed primarily.
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 15, August 2010, Pages 8177–8181