Enhancing Electrochemical Energy Storage with 3D Ti3C2Tx Hybrid Electrode Materials

IF 19 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Functional Materials Pub Date : 2025-05-23 DOI:10.1002/adfm.202505998

Kai Song, Jiabei Li, Tursun Abdiryim, Ruxangul Jamal, Hongtao Yang, Yanqiang Zhou, Zhigang Wang, Guoliang Zhang, Jiachang Liu, Wenjing Zhang, Jinglei Chen

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Abstract

MXenes have demonstrated significant promise in electrochemical energy storage due to their high electrical conductivity, excellent flexibility, and hydrophilicity. However, their susceptibility to stacking and oxidation limits the development of MXenes in energy storage. In this paper, 3D structured Ti₃C₂T_x (THM) is prepared. Subsequently, THM is used as the inner support structure, and polydopamine (PDA) is used as the outer shell structure to encapsulate the THM, and the uniformly dispersed and N-doped spherical structure (THM@CN) is obtained after carbonization at 650 °C. Finally, NiS is uniformly cultivated on the surface of THM@CN by hydrothermal synthesis to acquire the electrode material NiS/THM@CN. The NiS/THM@CN electrode material has a weight capacitance of 2750 F g⁻¹ (305.56 mAh g⁻¹/1 A g⁻¹). Furthermore, the solid-phase asymmetric HSC has an energy density up to 73.36 Wh kg⁻¹ and, with the capacitance of the HSC system, is sustained at 88.5% of the initial value after 15 000 cycles. The proposed structure with THM as the inner support junction and CN as the outer shell has a high specific surface area and dispersion, as well as excellent electrochemical stability, which further promotes the application of Ti₃C₂T_x in high-performance energy storage devices.

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三维Ti3C2Tx杂化电极材料增强电化学储能

由于其高导电性、优异的柔韧性和亲水性，MXenes在电化学储能方面表现出了巨大的前景。然而，其易堆积和氧化的特性限制了MXenes在储能领域的发展。本文制备了三维结构Ti3C2Tx （THM）。随后以THM作为内部支撑结构，以聚多巴胺（PDA）作为外壳结构对THM进行包封，650℃碳化后得到均匀分散、掺n的球形结构（THM@CN）。最后通过水热合成法在THM@CN表面均匀培养NiS，得到电极材料NiS/THM@CN。NiS/THM@CN电极材料的重量电容为2750 F g−1 （305.56 mAh g−1/1 a g−1）。此外，固相非对称HSC的能量密度高达73.36 Wh kg−1，并且在HSC系统的电容下，在15000次循环后保持在初始值的88.5%。所提出的以THM为内支撑结，CN为外壳的结构具有较高的比表面积和分散性，以及优异的电化学稳定性，进一步促进了Ti3C2Tx在高性能储能器件中的应用。

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

Advanced Functional Materials 工程技术-材料科学：综合

CiteScore

29.50

自引率

4.20%

发文量

2086

审稿时长

2.1 months

期刊介绍： Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.