期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 148, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2020.109753
关键词
Polyaniline; Carbon quantum dots; Core-shell; Supercapacitor
A green electrochemical approach was developed for the fabrication of PANI nanofiber and C-dots nanoparticles, with the composite material showing good performance in supercapacitors. The addition of C-dots to the PANI matrix enhanced the charge transport manner, leading to higher supercapacitor properties of the composite materials.
A green electrochemical approach is developed for the fabrication of polyaniline (PANI) nanofiber and carbon quantum dots (C-dots) nanoparticles. In this regard, C-dots were manufactured by DC power supply by 2 Pt plates in ethanol and NaOH solution. While, PANI was synthesized by chronopotentiometry using a 3-electrode compartment system in aniline and SDS solution. The C-dots/PANI composite was prepared via adsorption of C-dots on PANI to be produced PANI as a core and C-dots as a shell, due to the electrostatic adsorption of carboxylic groups of C-dots on PANI. The acquired composite material shows good performance for supercapacitors with a high specific capacity of 264.6 F g(-1) at a current density of 2.5 A g(-1). The long term studies conducted on materials show that the composite based on (C-dot/PANI) remain high stability up to the tested 5000 charge-discharge cycles. The results from double-layer capacitance, cyclic voltammetry, and the impedance test display that the addition of C-dots to the PANI matrix can enhance the charge transport manner, which leads to higher supercapacitor property of the composite materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据