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在MOF衍生的金属化物异构结构 (Cu/Cu₃P@NC) 上的化工程作为用于增强超级电容器性能的电极

Nissar Hussain¹, Zahir Abbas¹, Shagufi Naz Ansari^1,2

¹Department of Chemistry, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore 453552, India.

Inorganic chemistry

|October 11, 2023

概括

研究人员从一个基于铜的金属有机框架 (Cu-MOF) 开发了一种新的化铜/化碳 (CuP/Cu@NC) 异构结构. 这种材料在超级电容器中表现出色,提供高能量密度和稳定性.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
纳米技术纳米技术

背景情况:

金属有机框架 (MOF) 对储能具有前景,但其导电性较差.
开发导电MOF衍生材料对于提高电极性能至关重要.
碳纳米结构可以改善储能材料中的电子和离子传输.

研究的目的:

设计和合成一个新的3D铜基MOF (Cu-MOF).
为储能应用开发一种高导电性MOF衍生异构结构 (CuP/Cu@NC).
为了研究CuP/Cu@NC异构结构作为电极材料的电化学特性.

主要方法:

在环境温度下使用溶剂扩散方法合成3DCu-MOF.
低温化Cu-MOF以创建CuP/Cu@NC异构结构.
使用单晶X射线衍射进行表征.
在超级电容器中对材料进行电化学测试.

主要成果:

成功合成了一种具有独特拓的新型3D Cu-MOF.
来自MOF的CuP/Cu@NC异构结构表现出增强的电子和离子扩散.
电极在1Ag-1下产生了540Cg-1的特定容量,在20Ag-1.1下产生了190Cg-1的特定容量.
不对称的固态超级电容器实现了45.5Wh kg-1的能量密度和7.98 kW kg-1.1的功率密度.

结论:

CuP/Cu@NC异构表现出优越的电化学性能,包括高容量,速率能力和循环稳定性.
异构结构中的协同效应显著提高了导电性和离子传输.
这种MOF衍生材料显示出高级超级电容应用的巨大潜力.

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