Electrodeposition of Polypyrrole/Reduced Graphene Oxide/Iron Oxide Nanocomposite as Supercapacitor Electrode Material
Electrodeposition of Polypyrrole/Reduced Graphene Oxide/Iron Oxide Nanocomposite as Supercapacitor Electrode Material
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DOI：
10.1155/2013/653890
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发表时间：
2013-01-01
影响因子：
--
通讯作者：
Huang, N. M.
中科院分区：
文献类型：
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作者：
Eeu, Y. C.;Lim, H. N.;Huang, N. M.
用还原氧化石墨烯(RGO)和氧化铁对聚吡咯(PPy)进行增强，以达到电化学稳定和增强的目的。采用一锅计时电流法制备了三元纳米复合薄膜，该方法成本低廉，对实验友好。场发射扫描电子显微镜(FESEM)图像显示了三元纳米复合膜的层状结构，而不是PPy的树枝状结构，这表明三种材料在电沉积过程中发生了杂化。X射线衍射图表明，三元纳米复合材料中存在Fe2O_3。循环伏安(CV)分析表明，纳米复合材料的电流分别比二元(PPy/RGO)和单独(PPy)的增强电流增加了两倍和四倍。三元纳米复合薄膜在200次充放电循环后仍表现出优异的比电容保持性。
Polypyrrole (PPy) was reinforced with reduced graphene oxide (RGO) and iron oxide to achieve electrochemical stability and enhancement. The ternary nanocomposite film was prepared using a facile one-pot chronoamperometry approach, which is inexpensive and experimentally friendly. The field emission scanning electron microscopy (FESEM) image shows a layered morphology of the ternary nanocomposite film as opposed to the dendritic structure of PPy, suggesting hybridization of the three materials during electrodeposition. X-ray diffraction (XRD) profile shows the presence of Fe2O3 in the ternary nanocomposite. Cyclic voltammetry (CV) analysis illustrates enhanced current for the nanocomposite by twofold and fourfold compared to its binary (PPy/RGO) and individual (PPy) counterparts, respectively. The ternary nanocomposite film exhibited excellent specific capacitance retention even after 200 cycles of charge/discharge.