Two-dimensional monoelement nanosheets produced from bulk crystals for potassium-ion storage

被引：2

作者：

Luo, Wen ^{[1
]}

Ru, Fei ^{[1
]}

Yu, Dandan ^{[1
]}

Liu, Hongjie ^{[2
]}

Gao, Weiwei ^{[2
]}

Song, Wenlong ^{[2
]}

Chen, Da ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Mat & Chem, Hangzhou 310018, Zhejiang, Peoples R China

[2] Tianneng Battery Grp Co Ltd, Changxing City 313100, Zhejiang, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2023年 / 830卷

基金：

中国国家自然科学基金;

关键词：

Energy storage and conversion; Potassium-ion batteries; Nanocrystalline materials; Tellurium; Two-dimensional materials; ANTIMONENE;

D O I：

10.1016/j.cplett.2023.140824

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two-dimensional (2D) nanomaterials, particularly anisotropic monoelemental semiconductors, have attracted considerable attention for optoelectronic and electronic applications. Herein, a general substrate-free solution process is presented to prepare 2D non-layered selenium (Se)/tellurium (Te) and layered antimony (Sb) from bulk crystals. As a representative anode for K+ storage, the 2D Sb/mesoporous carbon (CMK-3) composite exhibits a high capacity up to 390.1 mAh/g at 50 mA g+1 and ultra-high retention of 98.9 % after 200 cycles, demonstrating that the reduced particle size and expanded interlayer distance effectively shorten the ionic diffusion pathway for fast kinetics.

引用

页数：5

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