科学研究

当前位置:网站首页 > 科学研究 > 学术交流 > 正文

永利官网硕士研究生孔德志在RSC Advances刊出论文

时间:2013年04月27日 00:00  阅读:

    日前,英国皇家化学学会综合类期刊RSC Advances发表了永利官网罗永松老师课题组一项有关自组装石墨烯/聚苯胺纳米蠕虫状复合材料用于增强超级电容器性能的最新研究成果,本成果是永利官网硕士研究生孔德志在其导师悉心指导下顺利完成。 

题目:Self-assembled graphene@PANI nanoworm composites with enhanced supercapacitor performance

期刊:RSC Advances, 2013, 3, 5851-5859

作者:Yongsong Luo, Dezhi Kong, Yonglei Jia, Jingshan Luo, Yang Lu, Deyang Zhang,  Kangwen Qiu,  Chang Ming Li and  Ting Yu

摘要:Self-assembled hierarchical graphene@polyaniline (PANI) nanoworm composites have been fabricated using graphene oxide (GO) and aniline as the starting materials. The worm-like PANI nanostructures were successfully obtained via a simple polymerization route. The graphene-wrapped hierarchical PANI nanoworm structures could be prepared using a three-step process by dispersing the PANI nanoworms sequentially into the relevant solution. The morphologies and microstructures of the samples were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Electrochemical properties were also characterized by cyclic voltammetry (CV) and galvanostatic charge–discharge. The results indicated that the integration of graphene and the worm-like PANI nanocomposites possessed excellent electrochemical properties. These hierarchical worm-like graphene@PANI nanostructures could afford an interconnected network with a lot of well-defined nanopores, and further provided more active sites and excellent electron transfer path for improving the electric conductivity as well as good mechanical properties. Supercapacitor devices based on these self-assembled nanocomposites showed high electrochemical capacitance (488.2 F g−1) at a discharge rate of 0.5 A g−1, which also could effectively improve electrochemical stability and rate performances.

链接: http://pubs.rsc.org/en/content/articlelanding/2013/RA/C3RA00151B