Fabrication of 2D structure of MoS2 assisted by carbon template for use in electrochemical capacitor
Fitri Nur Indah Sari, Jyh-Ming Ting*
National Cheng Kung University, Tainan, Taiwan Presenter: Fitri Nur Indah Sari
Corresponding author: Jyh-Ming Ting
*Corresponding author’s e-mail: [email protected]
ABSTRACT
2D structure materials are one of the promising material for use in electrochemical capacitor. There are several kind of 2D structure material, such as graphene, MXenes phase, and transition metal dichalcogenides (TMD). In here, we are focus on TMD material which is MoS2. There are two part of the fabrication of 2D structure of MoS2, which are by exfoliation
from the bulk MoS2 or directly synthesis of 2D structure of MoS2. In the present study, we
prefer to synthesis of 2D structure of MoS2 instead of exfoliation part. We utilized the various
carbon template to forming the 2D structure of MoS2 such as graphene oxide (GO), reduced
graphene oxide (RGO), N-doped graphene oxide (NDG), and carbon clothes with a facile method, microwave-assisted hydrothermal (MAH). Various degree oxidation of graphene would give nanoflower assembled by nanosheets morphology and carbon clothes would give nanoflakes morphology. These 2D structures would give excellent double layer capacitance. The effect of the time reaction and concentration of MoS2 precursor also were discussed.
Physical and chemical properties were be investigated by using X-ray diffraction for the crystallinity, scanning electron microscope (SEM) and transmission electron microscopy (TEM) for the morphology, X-ray photoelectron spectroscopy (XPS) to confirm the chemical content, thermogravimetric analysis (TGA) to know the wt. % of MoS2 in the template.
Electrochemical properties of materials were be investigated by using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic.
Keywords: 2D structure, MoS2, graphene, reduced graphene oxide, N-doped graphene, carbon
