Gold coated vertically aligned carbon nanotubes as electrode for electrochemical capacitors

被引：3

作者：

Roguai, Sabrina ^{[1
,2
]}

Djelloul, Abdelkader ^{[1
,2
]}

机构：

[1] Abbes Laghrour Univ, LASPI2A Lab Struct Properties & Interatom Interac, Khenchela 40000, Algeria

[2] Abbes Laghrour Univ, Sci Matter, Khenchela 40000, Algeria

来源：

THIN SOLID FILMS | 2023年 / 777卷

关键词：

Gold; Carbon nanotubes; Vertically aligned carbon nanotubes; Electrochemical capacitors; Cyclic voltammetry; MESOPOROUS CARBON; DEIONIZATION; PERFORMANCE; DESALINATION; WATER; LAYER; IONS;

D O I：

10.1016/j.tsf.2023.139894

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, gold (Au) films were deposited onto vertically aligned carbon nanotubes (CNTs) by Dc magnetron sputtering method for use as super-capacitor electrodes. By so doing, we synthesize a porous Au deposit anchored on the CNTs with a high apparent surface area. The structure and microstructure studies revealed that the Au@CNTs have a porous nanostructure morphology. The porous Au/CNTs electrodes exhibit an a good areal capacitance compared to state of art Au based electrode (25.6 mF cm-2 at 5 mV.s-1) and excellent cycling stability (90% retention after 10.000 cycles) in 0.5 M H2SO4 aqueous solution. These results demonstrate the beneficial use of CNTs to fabricate a porous Au deposit with improved electrochemical energy storage. In addition, these porous structures can also be used as templates for another type of materials for electrochemical energy storage.

引用

页数：6

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