两步法制备碳化钛薄膜及其电容性能

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Abstract Two-dimensional transition metal carbide or carbonitride (MXene) is a newtype of ultra-thin and graphene-like two-dimensional nanomate-rials with high specific surface area, high conductivity, adjustable composition and controllable layer thickness, which has attracted extensive research interest in the fields of adsorption, catalysis and sensing. Thanks to its excellent electrochemical activity and ion transport properties, MXene has been gradually emerging in the field of energy storage in recent years. However, few studies associated with high-performance and long-life MXene-based supercapacitors have been reported. In this work, Ti₃C₂ thin film were prepared by etching and spraying. The morphological and structural features of the Ti₃C₂ thin film were characterized in detail. Then, the capacitance of the Ti₃C₂ thin film was investigated systematically with a three-electrode system which was constructed with Ti₃C₂ thin film as the working electrode, calomel saturated electrode as the reference electrode and platinum sheet electrode as the counter electrode. The results show that the specific capacitance of the Ti₃C₂ thin film is as high as 187.0 F/g at a current density of 1.0 A/g. Interestingly, the capacitance of the Ti₃C₂ film was still maintained at 97.0% after 500 cycles at a current density of 10.0 A/g, showing excellent cycle stability.

Key words： MXene thin films two-step approach capacitance properties cycle stability

Published: 09 December 2021

CLC number:

X511

About author:: Shan Ou has won the winning prize in the PCB competition at the college level, the third prize in the Light Cube competition at the university level, the third prize in the Sichuan intelligent hardware competition, the third prize in the Sichuan intelligent vehicle competition, the second prize in the National Robotics Championship, and she has also been awarded the title of outstanding student and outstanding student cadre in the senior classroom, as well as the National Inspirational Scholarship.
Wenlong Liu obtained his Ph.D. degree in School of Chemical Engineering from the Sichuan University and served in Chengdu University, till now. He is currently an associate professor and master supervisor. His research interests are in the development and application of new functional materials, including electric energy conversion and storage materials, thin film materials, nanomaterials, sensor materials, and research on semiconductor devices and processes, synthesis of materials, growth processes, structural characterization, optoelectronic performance testing, and applications to devices such as lithium-ion batteries, supercapacitor batteries, solar cells, sensors, TFTs, etc. In recent years, he published more than 30 papers, won the second prize of Sichuan Provincial Science and Technology Progress, declared 5 national invention patents, which have been 3 were granted. He has edited 3 books, participated in international academic confe-rences and presented orally 3 times.

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	OU Shan
	MOU Zihao
	LIN Tao
	LI Yao
	FENG Wei
	LIU Wenlong

Cite this article:

OU Shan,MOU Zihao,LIN Tao, et al. Preparation of Titanium Carbide Film by Two-step Approach and Its Capacitance Properties[J]. Materials Reports, 2021, 35(z2): 18-21.

URL:

http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2021/V35/Iz2/18

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