扩展层间距的非均相MoS2@CNPs杂化锌离子水电池

IF 5.5 3区材料科学 Q1 ELECTROCHEMISTRY

Electrochimica Acta Pub Date : 2025-01-23 DOI:10.1016/j.electacta.2025.145729

Nannan Xu, Zhe Wang, Fan Wang, Cheng Lu, Yunrui Wei, Jinhua Ding, Shuangjian Li, Huanian Zhang, Lianzheng Su

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引用次数: 0

摘要

水溶液锌离子电池（arzabs）的正极材料一直在不断发展，对二硫化钼（MoS2）进行了改进，以解决电导率差、内阻高、离子传输慢等问题。在这里，在以葡萄糖为前驱体的硬碳球表面生长了一种非均相的二硫化钼纳米片复合结构（MoS2@CNPs）。由于MoS2@CNPs的非均相结构，晶格间距从0.62 nm增加到0.97 nm。结果表明，具有碳纳米材料非均相结构的化合物二硫化钼可以扩大二硫化钼的晶格间距，降低锌离子插入的能垒，提高其电荷转移能力。因此，异质MoS2@CNPs混合动力提供了更好的循环稳定性和性能比。

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Heterogeneous MoS2@CNPs hybrid with expanded interlayer spacing for aqueous rechargeable zinc-ion batteries

The cathode materials of the aqueous zinc ion battery (ARZIBs) have been continuously developing, MoS₂ has been enhanced to address issues such as poor conductivity, high internal resistance, and slow ion transmission. Here, a heterogeneous composite structure of MoS₂ nanosheets is grown on the surface of hard carbon spheres provided by glucose as a precursor (MoS₂@CNPs). The lattice spacing increased from 0.62 nm to 0.97 nm due to the heterogeneous structure of MoS₂@CNPs. The results reveal that the compound MoS₂ with carbon nanomaterials heterogeneous structure can enlarge lattice the spacing of MoS₂, decrease the energy barrier for zinc ion insertion, and improve the charge transfer capability. Therefore, a heterogeneous MoS₂@CNPs hybrid delivers better cycling stability and performance ratio.

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来源期刊

Electrochimica Acta 工程技术-电化学

CiteScore

11.30

自引率

6.10%

发文量

1634

审稿时长

41 days

期刊介绍： Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.