当前位置: X-MOL 学术Electrochem. Commun. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Enhanced electrochemical performance of molten salt synthesized V2CTx MXene@VOx composite in Zn ion aqueous electrolytes
Electrochemistry Communications ( IF 4.7 ) Pub Date : 2024-06-06 , DOI: 10.1016/j.elecom.2024.107770
Jinru Wen , Hongyan Dan , Chunyang Li , Chunlong Dai , Zifeng Lin

The development of MXenes using Lewis acidic salts for etching (MS-MXenes) in molten salts presents a novel, fluorine-free method attracting considerable interest. However, the behavior of various MS-MXenes and their derivatives in aqueous environments remains largely unexplored. Particularly, vanadium-based MXenes demonstrate intriguing properties in Zn ion aqueous electrolytes. Herein, a fluorine-free VCT MXene@VO is synthesized by molten salt etching under an argon atmosphere. The electrochemical properties of VCT@VO are tested in various aqueous electrolytes, including Zn(TFSI), ZnSO, ZnBr, ZnAc, and ZnCl solutions. The VCT@VO shows high redox capacities in all these Zn ion electrolytes, with the peak performance observed in 1 M ZnBr, achieving a maximum capacity of 172 mAh g at 1 mV s. This performance rivals that of VCT MXene prepared through wet-chemical methods. These results underscore the potential of MS-MXenes materials in aqueous energy storage applications.

中文翻译:


熔盐合成的 V2CTx MXene@VOx 复合材料在锌离子水电解质中增强电化学性能



使用路易斯酸性盐在熔盐中蚀刻(MS-MXenes)开发的 MXene 提出了一种新颖的无氟方法,引起了人们的极大兴趣。然而,各种 MS-MXene 及其衍生物在水环境中的行为在很大程度上仍未得到探索。特别是,钒基 MXene 在锌离子水电解质中表现出有趣的特性。在此,通过在氩气气氛下熔盐蚀刻合成了无氟VCT MXene@VO。 VCT@VO 的电化学性能在各种水性电解质中进行了测试,包括 Zn(TFSI)、ZnSO、ZnBr、ZnAc 和 ZnCl 溶液。 VCT@VO 在所有这些锌离子电解质中均表现出高氧化还原容量,其中在 1 M ZnBr 中观察到峰值性能,在 1 mV s 下实现了 172 mAh g 的最大容量。该性能可与湿化学法制备的 VCT MXene 相媲美。这些结果强调了 MS-MXenes 材料在水性储能应用中的潜力。
更新日期:2024-06-06
down
wechat
bug