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

A. Y. Chen, T. T. Zhang, Y. J. Qiu, D. Wang, P. Wang, H. J. Li, Y. Li, J. H. Yang, X. Y. Wang*, X. F. Xie*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

47 Citations (Scopus)

Abstract

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 0.5 M 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.
Original languageEnglish
Pages (from-to)260-267
JournalElectrochimica Acta
Volume294
Online published16 Oct 2018
DOIs
Publication statusPublished - 20 Jan 2019

Research Keywords

  • Electrochemical deposition
  • Graphitic carbon nitride
  • Nanoporous gold
  • Supercapacitor

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