构建（0D/3D）MoSe2@HrGO 混合物以提高锌-碲水溶液电池中的反应动力学的限制策略

IF 4.1 2区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Science Pub Date : 2024-11-19 DOI:10.1016/j.ces.2024.120961

Zhaohua Jiang, Jinjin Wen, Huiting Xu, Yufen Zhang, Haonan Zhai, Zhijie Cui, Honghai Wang, Junjie Qi, Wen Liu, Jiapeng Liu

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引用次数: 0

摘要

基于锌和碲之间转化反应的锌-碲（Zn-Te）水溶液电池因其成本效益高、理论比容量大和出色的安全性能而引起了人们的极大兴趣。然而，缓慢的动力学对锌碲水电池的发展构成了障碍。在这项研究中，通过限制合成策略，零维（0D）纳米点和三维（3D）纳米流二硒化钼（MoSe2）被原位生长在孔状还原氧化石墨烯（HrGO）上。由于同时存在 (0D/3D)MoSe2、空心还原氧化石墨烯的优异导电性和独特的分层结构，(0D/3D)MoSe2@HrGO 杂化物极大地促进了 Zn 和 Te 之间的氧化还原动力学转换。因此，所构建的配备 Te@(0D/3D)MoSe2@HrGO 阴极的锌碲水溶液电池具有显著的比容量（电流密度为 0.15 A/g 时达到 505 mAh/g）和出色的长期循环稳定性。此外，还通过广泛的分析技术细致地探索了潜在的转换机制。这项研究为提高锌碲水电池的电化学性能引入了一种创新方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Confinement strategy construction (0D/3D)MoSe2@HrGO hybrid for enhancing reaction kinetics in aqueous zinc-tellurium batteries

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Confinement strategy construction (0D/3D)MoSe2@HrGO hybrid for enhancing reaction kinetics in aqueous zinc-tellurium batteries

Aqueous zinc-tellurium (Zn-Te) batteries based on conversion reactions between Zn and Te have sparked significant interest due to their cost-effectiveness, high theoretical specific capacity and outstanding safety features. Nevertheless, the sluggish kinetics pose a barrier to the advancement of aqueous Zn-Te batteries. In this study, zero-dimension (0D) nanodots and three-dimensional (3D) nanoflowers molybdenum diselenide (MoSe₂) are in situ grown on the holey reduced graphene oxide (HrGO) by a confinement synthesis strategy. Benefiting from the simultaneous presence of (0D/3D)MoSe₂, excellent conductivity of holey reduced graphene oxide and unique hierarchical structure, the (0D/3D)MoSe₂@HrGO hybrid greatly promotes the redox kinetics between Zn and Te conversion. Consequently, the constructed aqueous Zn-Te batteries equipped with a Te@(0D/3D)MoSe₂@HrGO cathode demonstrate remarkable specific capacity (reaching 505 mAh/g at a current density of 0.15 A/g) along with outstanding long-term cycling stability. Additionally, the underlying conversion mechanism has been meticulously explored through extensive analytical techniques. This research introduces an innovative approach to boost the electrochemical performance of aqueous zinc-tellurium batteries.

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来源期刊

Chemical Engineering Science 工程技术-工程：化工

CiteScore

7.50

自引率

8.50%

发文量

1025

审稿时长

50 days

期刊介绍： Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline. Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.