Free-standing reduced graphene oxide/polypyrrole films with enhanced electrochemical performance for flexible supercapacitors

被引：58

作者：

Guo, Xiumei ^{[1
]}

Bai, Nana ^{[1
]}

Tian, Yan ^{[1
]}

Gai, Ligang ^{[1
]}

机构：

[1] Qilu Univ Technol, Shandong Acad Sci, Sch Chem & Pharmaceut Engn, Inst Adv Energy Mat & Chem, Jinan 250353, Shandong, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2018年 / 408卷

基金：

中国国家自然科学基金;

关键词：

Reduced graphene oxide/polypyrrole film; Flexible all-solid-state supercapacitor; Interfacial polymerization; NEXT-GENERATION; POLYPYRROLE; COMPOSITE; ELECTRODE; POLYMER; NANOCOMPOSITES; POLYANILINE; CAPACITANCE; NANOSHEETS; OXIDE;

D O I：

10.1016/j.jpowsour.2018.10.083

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Flexible all-solid-state supercapacitors with specific energy higher than 1 mW h cm(-3) after long-term cycles remain a hot research topic in energy storage systems. In this paper, free-standing reduced graphene oxide/polypyrrole films are produced at the ice/ethanol interface following by hydrogen iodide reduction. The reduced graphene oxide/polypyrrole films are featured with high specific surface area, three-dimensional porosity, and tunable thickness and electronic conductivity. The typical flexible all-solid-state supercapacitor based on reduced graphene oxide/polypyrrole films exhibits a high volumetric specific capacitance of 17.3 F cm(-3) and a high specific energy of 2.40 mW h cm(-3) with corresponding specific power of 136.1 mW cm(-3) at a current density of 3 mA cm(-2) (ca. 10 Ag-1 After 10,000 cycles at 3 mA cm(-2), the capacitance retention of the typical flexible supercapacitor retains 73.2%. The enhanced electrochemical properties of the flexible supercapacitors are attributed to the high specific surface area, three-dimensional porosity, and the synergistic effect between reduced graphene oxide and polypyrrole with respect to the composite films.

引用

页码：51 / 57

页数：7

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