|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|63752||48251||2016||6 صفحه PDF||سفارش دهید||دانلود کنید|
A free-standing paper-like three-dimensional graphene framework (3DGF) with orientated laminar structure and interconnected macropores, was obtained by the hard template-directed ordered assembly. As the sacrificial templates, polystyrene (PS) latex spheres were assembled with graphene oxide (GO) to build up a sandwich type composite film, followed by heat removal of which with a simultaneous reduction of GO. The 3DGF exhibited high specific surface area of 402.5 m2/g, controllable pores and mechanical flexibility, which was employed as the binder-free supercapacitor electrode and shows high specific gravimetric capacitance of 95 F/g at 0.5 A/g, with enhanced rate capability in 3 electrode KOH system.
The 3D paper-like graphene with higher surface area and highly orientated laminar structure can be suitable as electrode, which may lead to the development of binder-free electrode for next generation supercapactor.Figure optionsDownload as PowerPoint slide
Journal: Journal of Energy Chemistry - Volume 25, Issue 1, January 2016, Pages 49–54