کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1283734 | 1497660 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Influence of copper electroplating on high pressure hydrogen-storage behaviors of activated carbon fibers Influence of copper electroplating on high pressure hydrogen-storage behaviors of activated carbon fibers](/preview/png/1283734.png)
In this work, copper nanoparticles were plated onto the surfaces of activated carbon fibers (ACFs) in order to investigate the effects of their presence on the high pressure hydrogen-storage behaviors of the resultant Cu/ACFs, as studied by PCT apparatus at 100 atm and 298 K. The Cu/ACFs’ pore structures and total pore volumes were analyzed by reference to N2/77K adsorption isotherms, and their chemical composition and surface morphologies were characterized using an energy-dispersive X-ray spectrometer (EDS) and a scanning electron microscope (SEM), respectively. In the experimental result, the specific surface area and total pore volume decreased with increasing electroplating time. However, the hydrogen-storage capacity was enhanced in the presence of Cu nanoparticles for Cu-10 and Cu-30 samples, and then began to decline. These results indicated that the surface properties were decreased by the Cu nanoparticles, but that the hydrogen-storage capacity was increased by the modified spill over of hydrogen molecules into the carbon structures.
Journal: International Journal of Hydrogen Energy - Volume 33, Issue 6, March 2008, Pages 1706–1710