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 language | English |
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Pages (from-to) | 260-267 |
Journal | Electrochimica Acta |
Volume | 294 |
Online published | 16 Oct 2018 |
DOIs | |
Publication status | Published - 20 Jan 2019 |
Research Keywords
- Electrochemical deposition
- Graphitic carbon nitride
- Nanoporous gold
- Supercapacitor