Facile in situ selenization synthesis of chemically bonded SnSe/r-GO composite with superior lithium storage performance

Cheng, Yayi; Yu, Fangli; Li, Xin; Li, Guohao; Cheng, Weijie; Zhao, Xiaojuan; Xu, Yan; Qi, Hui

doi:10.1016/j.matlet.2024.136050

Materials Letters

2024

DOI: 10.1016/j.matlet.2024.136050

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Facile in situ selenization synthesis of chemically bonded SnSe/r-GO composite with superior lithium storage performance

Yayi Cheng,

Fangli Yu,

Xin Li

et al.

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2024

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A Universal In‐Situ Interfacial Growth Strategy for Various MXene‐Based van der Waals Heterostructures with Uniform Heterointerfaces: The Efficient Conversion from 3D Composite to 2D Heterostructures

Kong,

Zong,

Lei

et al. 2024

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Two‐dimensional (2D) van der Waals heterostructures endow individual 2D material with the novel functional structures, intriguing compositions, and fantastic interfaces, which efficiently provide a feasible route to overcome the intrinsic limitations of single 2D components and embrace the distinct features of different materials. However, the construction of 2D heterostructures with uniform heterointerfaces still poses significant challenges. Herein, a universal in‐situ interfacial growth strategy is designed to controllably prepare a series of MXene‐based tin selenides/sulfides with 2D van der Waals homogeneous heterostructures. Molten salt etching by‐products that are usually recognized as undesirable impurities, are reasonably utilized by us to efficiently transform into different 2D nanostructures via in‐situ interfacial growth. The obtained MXene‐based 2D heterostructures present sandwiched structures and lamellar interlacing networks with uniform heterointerfaces, which demonstrate the efficient conversion from 3D composite to 2D heterostructures. Such 2D heterostructures significantly enhance charge transfer efficiency, chemical reversibility, and overall structural stability in the electrochemical process. Taking 2D‐SnSe2/MXene anode as a representative, it delivers outstanding lithium storage performance with large reversible capacities and ultrahigh capacity retention of over 97% after numerous cycles at 0.2, 1.0, and 10.0 A g−1 current density, which suggests its tremendous application potential in lithium‐ion batteries.

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A Universal In‐Situ Interfacial Growth Strategy for Various MXene‐Based van der Waals Heterostructures with Uniform Heterointerfaces: The Efficient Conversion from 3D Composite to 2D Heterostructures

Kong,

Zong,

Lei

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

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Facile in situ selenization synthesis of chemically bonded SnSe/r-GO composite with superior lithium storage performance

Cited by 1 publication

References 11 publications

A Universal In‐Situ Interfacial Growth Strategy for Various MXene‐Based van der Waals Heterostructures with Uniform Heterointerfaces: The Efficient Conversion from 3D Composite to 2D Heterostructures

A Universal In‐Situ Interfacial Growth Strategy for Various MXene‐Based van der Waals Heterostructures with Uniform Heterointerfaces: The Efficient Conversion from 3D Composite to 2D Heterostructures

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