首页|MXene/椰壳炭复合材料的制备及电化学性能分析

MXene/椰壳炭复合材料的制备及电化学性能分析

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MXene具有与金属材料相似的能带结构,并表现出良好的导电性能.但是MXene极易发生层状堆积,影响MXene材料的电化学性能.本研究拟采用MXene和椰壳碳在去离子水中混合制备MXene复合材料,研究其结构和形态对其电化学性质的影响.研究结果表明,加入到MXene薄膜中的可溶性椰壳炭,通过粒子之间的相互渗透对锂离子的迁移起到促进作用.对该材料进行了充放电实验结果表明,采用质量配比1∶2的材料,在电流密度0.1 A/g条件下,其首次充放电比容量可以达到1951.7 mAh/g,经过200次循环后,其充放电比容量为800.8 mAh/g.
Preparation and Electrochemical Performance Analysis of MXene/Coconut Shell Carbon Composite Materials
MXene has a band structure similar to metallic materials and exhibits good conductivity.However,MXene is prone to layered stacking,which affects the electrochemical performance of MXene materials.This study aims to prepare MXene composite materials by mixing MXene and coconut shell carbon in deionized water,and investigate the effects of its structure and morphology on its electrochemical properties.The research results indicate that soluble coconut shell charcoal added to MXene films promotes the migration of lithium ions through interpenetration between particles.The charging and discharging experiments were conducted on the material,and the results showed that using a 1∶2 mass ratio of material,under a current density of 0.1 A/g,its initial charging and discharging specific capacity can reach 1 951.7 mAh/g.After 200 cycles,its charging and discharging specific capacity is 800.8 mAh/g.

MXenecoconut shell charcoalelectrochemical performance

张洋洋

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河南化工技师学院,河南 开封 475000

MXene 椰壳炭 电化学性能

2024

山西化工
山西省煤化工发展促进中心 山西省化工学会

山西化工

影响因子:0.293
ISSN:1004-7050
年,卷(期):2024.44(5)