Construction of Hierarchical Nanotubes Assembled from Ultrathin V3 S4 @C Nanosheets towards Alkali-Ion Batteries with Ion-Dependent Electrochemical Mechanisms.
Yang LiuZehang SunXuan SunYue LinKe TanJinfeng SunLongwei LiangLinrui HouChangzhou YuanPublished in: Angewandte Chemie (International ed. in English) (2020)
Ultrathin core-shell V3 S4 @C nanosheets assembled into hierarchical nanotubes (V3 S4 @C NS-HNTs) are synthesized by a self-template strategy and evaluated as general anodes for alkali-ion batteries. Structural/physicochemical characterizations and DFT calculations bring insights into the intrinsic relationship between crystal structures and electrochemical mechanisms of the V3 S4 @C NS-HNTs electrode. The V3 S4 @C NS-HNTs are endowed with strong structural rigidness owing to the layered VS2 subunits and interlayer occupied V atoms, and efficient alkali-ion adsorption/diffusion thanks to the electroactive V3 S4 -C interfaces. The resulting V3 S4 @C NS-HNTs anode exhibit distinct alkali-ion-dependent charge storage mechanisms and exceptional long-durability cyclic performance in storage of K+ , benefiting from synergistic contributions of pseudocapacitive and reversible intercalation/de-intercalation behaviors superior to those of the conversion-reaction-based Li+ -/Na+ -storage counterparts.
Keyphrases
- ion batteries
- dengue virus
- metal organic framework
- gold nanoparticles
- molecularly imprinted
- density functional theory
- reduced graphene oxide
- zika virus
- quantum dots
- ionic liquid
- molecular dynamics
- highly efficient
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- solar cells
- molecular docking
- cancer therapy
- transition metal
- visible light
- mass spectrometry
- aqueous solution
- solid phase extraction
- liquid chromatography