Construction of nanoporous gold/g-C3N4 heterostructure for electrochemical supercapacitor

被引：43

作者：

Chen, A. Y. ^{[1
]}

Zhang, T. T. ^{[1
]}

Qiu, Y. J. ^{[1
]}

Wang, D. ^{[1
]}

Wang, P. ^{[1
]}

Li, H. J. ^{[1
]}

Li, Y. ^{[3
]}

Yang, J. H. ^{[1
]}

Wang, X. Y. ^{[1
,2
]}

Xie, X. F. ^{[4
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai 200093, Peoples R China

[2] City Univ Hong Kong, Ctr Adv Struct Mat, Shenzhen Res Inst, Shenzhen 518057, Peoples R China

[3] Shanghai Innovat Inst Mat, Shanghai 200444, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2019年 / 294卷

基金：

中国国家自然科学基金;

关键词：

Graphitic carbon nitride; Nanoporous gold; Electrochemical deposition; Supercapacitor; GRAPHITIC CARBON NITRIDE; PORE-SIZE; GRAPHENE; PERFORMANCE; STORAGE; NANOSTRUCTURE; ELECTRODES; CONVERSION; ENERGY; FILMS;

D O I：

10.1016/j.electacta.2018.10.106

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Hybrids with two-dimensional and three-dimensional nanostructures have attracted great interest in the construction of supercapacitor electrodes due to their unique structural features. Graphitic carbon nitride (g-C3N4) nanosheets are deposited on the surface of a nanoporous gold (NPG) film via an electrochemical method to form a hybrid electrode of NPG/g-C3N4 with an ultra-thin, ultra-light and good flexible characteristics. The electrochemical tests show that the hybrid electrode exhibits a good supercapacitive performance, such as an admirable specific capacitance (440 F g(-1) at 2 A g(-1)) in 0.5M Na2SO4 solution and a favorable cycling durability (maintaining 98% capacity after 10000 cycles). More interesting, the NPG/g-C3N4 electrode displays a striking enhancement of supercapacitive performance with the increase of bending angle. This superior property can be attributed to the unique nanosheets on nanoporous structure by a strong interfacial effect between the defected Au atoms of NPG and g-C3N4. (c) 2018 Elsevier Ltd. All rights reserved.

引用

页码：260 / 267

页数：8

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