典型文献
MOF-derived molybdenum selenide on Ti3C2Tx with superior capacitive performance for lithium-ion capacitors
文献摘要:
Two-dimensional Ti3C2Tx exhibits outstanding rate property and cycle performance in lithium-ion capacitors (LICs) due to its unique layered structure, excellent electronic conductivity, and high specific surface area. However, like graphene, Ti3C2Tx restacks during electrochemical cycling due to hydrogen bonding or van der Waals forces, leading to a decrease in the specific surface area and an increase in the diffusion distance of electrolyte ions between the interlayer of the material. Here, a transition metal selenide MoSe2 with a special three-stacked atomic layered structure, derived from metal–organic framework (MOF), is introduced into the Ti3C2Tx structure through a solvo-thermal method. The synergic effects of rapid Li+ diffusion and pillaring effect from the MoSe2 and excellent conductivity from the Ti3C2Tx sheets endow the material with excellent electrochemical reaction kinetics and capacity. The composite Ti3C2Tx@MoSe2 material exhibits a high capacity over 300 mAh·g?1 at 150 mA·g?1 and excellent rate property with a specific capacity of 150 mAh·g?1 at 1500 mA·g?1. Addition-ally, the material shows a superior capacitive contribution of 86.0% at 2.0 mV·s?1 due to the fast electrochemical reactions. A Ti3C2Tx@MoSe2//AC LIC device is also fabricated and exhibits stable cycle performance.
文献关键词:
中图分类号:
作者姓名:
Jianjian Zhong;Lu Qin;Jianling Li;Zhe Yang;Kai Yang;Mingjie Zhang
作者机构:
State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China;State Key Laboratory of Operation and Control of Renewable Energy and Storage Systems,China Electric Power Research Institute,Beijing 100192,China
文献出处:
引用格式:
[1]Jianjian Zhong;Lu Qin;Jianling Li;Zhe Yang;Kai Yang;Mingjie Zhang-.MOF-derived molybdenum selenide on Ti3C2Tx with superior capacitive performance for lithium-ion capacitors)[J].矿物冶金与材料学报,2022(05):1061-1072
A类:
restacks,solvo,pillaring
B类:
MOF,derived,molybdenum,selenide,Ti3C2Tx,superior,capacitive,performance,lithium,capacitors,Two,dimensional,exhibits,outstanding,rate,property,cycle,LICs,due,unique,layered,structure,excellent,electronic,conductivity,high,specific,surface,area,However,like,graphene,during,electrochemical,cycling,hydrogen,bonding,van,Waals,forces,leading,decrease,increase,diffusion,distance,electrolyte,between,interlayer,material,Here,transition,metal,MoSe2,special,three,stacked,atomic,from,organic,framework,introduced,into,through,thermal,method,synergic,effects,rapid,Li+,sheets,endow,kinetics,capacity,composite,over,mAh,Addition,ally,shows,contribution,mV,fast,reactions,AC,device,also,fabricated,stable
AB值:
0.501654
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