Bimetallic Ti3-xNbxC2Tx MXenes for high-performance lithium-ion capacitors

IF 3.1 3区 化学 Q3 CHEMISTRY, PHYSICAL
Yunfeng Guan , Binyi Xiao , Rui Chen , Jin Liu , Haiping Yang , Mengyin Zhao , Jianjun Xu , Yu Ding
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引用次数: 0

Abstract

Bimetallic solid solution MXenes have emerged as promising materials for high-performance lithium-ion capacitors. Herein, we investigate the effect of niobium content on the lithium-ion storage performance of Ti3C2Tx MXenes through theoretical calculations and experimental methods. Among these bimetallic solid-solution MXenes, Ti2NbC2Tx demonstrates superior specific capacity of 323 mAh g−1 at 0.1 A g−1. Furthermore, Ti2NbC2Tx//AC lithium-ion capacitors display a high energy density of 120 Wh kg−1 at a power density of 50 W kg−1. This work provides valuable insights into the optimization of Ti3-xNbxC2Tx MXenes for enhanced lithium-ion storage and paves the way for the development of high-performance energy storage devices.

Abstract Image

高性能锂离子电容器用双金属Ti3-xNbxC2Tx MXenes
双金属固溶体MXenes已成为高性能锂离子电容器的有前途的材料。本文通过理论计算和实验方法研究铌含量对Ti3C2Tx MXenes锂离子存储性能的影响。在这些双金属固溶体MXenes中,Ti2NbC2Tx在0.1 A g−1时具有323 mAh g−1的优越比容量。此外,Ti2NbC2Tx//AC锂离子电容器在50 W kg - 1的功率密度下显示出120 Wh kg - 1的高能量密度。这项工作为优化Ti3-xNbxC2Tx MXenes增强锂离子存储提供了有价值的见解,并为高性能储能设备的开发铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Chemical Physics Letters
Chemical Physics Letters 化学-物理:原子、分子和化学物理
CiteScore
5.70
自引率
3.60%
发文量
798
审稿时长
33 days
期刊介绍: Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.
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