基于三维多孔石墨烯/含钛共轭聚合物复合多孔薄膜的柔性全固态超级电容器  

Flexible All-Solid-State Supercapacitor Based on Three-Dimensional Porous Graphene/Titanium-Containing Copolymer Composite Film

作　　者：杜惟实 吕耀康[1,2] 蔡志威 张诚[1] 

机构地区：[1]浙江工业大学化学工程学院,杭州310014 [2]清华大学化学系,北京100084 [3]浙江省食品药品检验研究院,杭州310051

出　　处：《物理化学学报》2017年第9期1828-1837,共10页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(21501148);浙江省自然科学基金(LQ15E030002;LY15E030006);中国博士后科学基金(2016M570075)资助项目~~

摘　　要：采用Fe^(3+)离子交联的方法制备氧化石墨烯水凝胶,经化学还原制备出一种新型的三维多孔石墨烯薄膜材料命名为rGO-Fe;通过电化学聚合法在rGO-Fe基底上进一步制备了一种三维多孔石墨烯/含钛共轭聚合物复合薄膜材料,命名为r GO-Fe/P(EDOT:P3C)-1-Ti。作为一种新型复合薄膜材料,rGO-Fe/P(EDOT:P3C)-1-Ti较rGO-Fe具有更好的抗拉伸性能,平均厚度为3μm的rGO-Fe/P(EDOT:P3C)-1-Ti薄膜,可承受载荷拉力0.97 N,优于相同厚度的rGO-Fe薄膜(0.76 N)。将rGO-Fe/P(EDOT:P3C)-1-Ti薄膜作为自支撑电极制备了柔性全固态超级电容器,表现出优良的电容性能,且在弯折状态下仍能正常工作。当电流密度为0.1 A?g^(-1)时,该柔性全固态超级电容器的质量比容量为71.13?F?g^(-1),面积比容量为101 mF?cm^(-2),当电流密度为0.6 A?g^(-1)时,其质量比容量为18.14 F?g^(-1),面积比容量为25.8 mF?cm^(-2)。A new three-dimensional （3D） porous graphene thin film named rGO-Fe was prepared through chemical reduction from Fe3＊ ions cross-linking graphene oxide hydrogel, and a 3D porous graphene/titanium-containing conjugated polymer composite film named rGO-Fe/P（EDOT：P3C）-I-Ti was further prepared via electrochemical polymerization on the rGO-Fe substrate. As a new composite film, rGO-Fe/P（EDOT：P3C）-I-Ti film with average thickness of 3μm can withstand the tensile load 0.97 N which is better than that of rGO-Fe （0.76 N）. We compared the electrochemical properties of these film materials, and prepared self-supporting electrodes and a flexible all-solid-state supercapacitor based on rGO-Fe/P（EDOT：P3C）-1-Ti. Galvanostatic charge-discharge test results showed that the as prepared flexible supercapacitor delivered a gravimetric specific capacitance of 71.13 F.g 1 （18.14 F.g=1） and an area specific capacitance of 101 mF.cm 2 （25.8 mF.cm 2） at 0.1 A.g-1 （0.6A.g 1）.

关 键 词：石墨烯 电化学聚合 交联 多孔薄膜 含钛共轭聚合物 柔性全固态超级电容器 

分 类 号：TB383.2[一般工业技术—材料科学与工程] TM53[电气工程—电器]