摘要
近年来,MXene由于其高导电率与表面亲水性,良好离子传输性能和优异的机械性能,在储能领域中得到了广泛的关注并取得了一定的研究进展,其中对Ti3C2Tx MXene材料的研究是最早也是最普遍的。本文研究分别通过在纤维素纸、普通A4纸、较光滑滤纸、粗糙滤纸上喷涂相同质量的MXene溶液和在同一种纸张衬底上喷涂不同厚度的薄膜,接着利用激光雕刻机雕刻相同形貌的插指图案,并组装成微型超级电容器。通过电化学性能测试,从而揭示不同厚度及不同纸基衬底对MXene基微型超级电容器电化学性能的影响。单个器件面电容达到78 mF/cm^2,在功率密度为115.5 mW/cm^2时,能量密度高达14.1 mWh/cm^2。将四个器件进行串联,可以驱动一个时钟。
In recent years,due to its high conductivity and surface hydrophilicity,good ion transfer performance and excellent mechanical properties,MXene has received extensive attention and made some progress in the field of energy storage,among which the research on Ti3C2Tx MXene materials is the earliest and most common.In this paper,MXene films with the same quality was prepared by spraying method on cellulose paper,ordinary A4 paper,smoother filter paper and coarse filter paper,and the thin films with different thickness was sprayed on the same paper substrate.Then the same shape of finger pattern was carved by laser engraving machine and finally was assembled into microsupercapacitor.The electrochemical properties of MXene based microsupercapacitors were tested to reveal the effects of different thickness and paper substrate on the electrochemical properties of MXene based microsupercapacitors(MSCs).The areal capacitance of a single device can reach 78 mF/cm^2,and the energy density is as high as 14.1 mWh/cm^2 at the power density of 115.5 mW/cm^2.Four devices connected in series can drive a clock.
作者
李星星
肖绍军
马亚楠
罗时军
LI Xingxing;XIAO Shaojun;MA Yanan;LUO Shijun(School of Science, Hubei University of Automotive Technology, Shiyan 442002, China)
出处
《人工晶体学报》
EI
CAS
北大核心
2020年第3期526-531,共6页
Journal of Synthetic Crystals
基金
国家自然科学基金青年科学基金(11904091)
湖北省教育厅科学研究计划指导性项目(B2019079)
湖北汽车工业学院大学生创新创业资金(DC2019112)。
