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- W4306711595 endingPage "139841" @default.
- W4306711595 startingPage "139841" @default.
- W4306711595 abstract "• Tiny In 2 Se 3 nanoparticles encapsulated into MOFs−derived porous nitrogen−doped carbon matrix (In 2 Se 3 /PNC) is constructed. • The optimized In 2 Se 3 /PNC−800 electrode exhibits a high capacity up to 1038 mAh g −1 and remarkable cycling stability over 2000 cycles. • DFT simulations and In−situ XRD explore the lithium storage mechanism of the In 2 Se 3 /PNC−800 electrode. As a representative two-dimensional layered material, In 2 Se 3 attracts an increasing research interest because of the virtue of high theoretical lithium-ion storage capacity. However, the development of In 2 Se 3- based anode is primarily confined by the poor electronic conductivity and inevitable volume variations. Moreover, the lithium−ion storage mechanism of In 2 Se 3 - based electrode is still not clear. Here, we report a facile construction strategy for metal-organic frameworks (MOFs)-derived In 2 Se 3 nanocrystals encapsulated in porous nitrogen−doped carbon conductive matrix (In 2 Se 3 /PNC). The In 2 Se 3 /PNC with porous structure and rich N−doped carbon affords highly efficient channels for rapid transportation of ions and electrons. Meanwhile, as the heterogeneous structure provides sufficient void space to relieve the internal mechanical stress during the repeated charge-discharge processes. Thus, the optimized In 2 Se 3 /PNC−800 (annealed at 800 °C) electrode exhibits a capacity as high as 1038 mAh g −1 at 200 mA g −1 , remarkable cycling stability over 2000 cycles and a comparable high-rate capability. Moreover, the reaction mechanism of the In 2 Se 3 with Li + is revealed through in-situ XRD and density functional theory (DFT) simulations. This study may present broad opportunities for reliable construction of high-capacity selenium-based composites for energy storage." @default.
- W4306711595 created "2022-10-19" @default.
- W4306711595 creator A5005725920 @default.
- W4306711595 creator A5026431418 @default.
- W4306711595 creator A5041170278 @default.
- W4306711595 creator A5065512679 @default.
- W4306711595 creator A5065761001 @default.
- W4306711595 creator A5074743331 @default.
- W4306711595 creator A5078949281 @default.
- W4306711595 creator A5080143012 @default.
- W4306711595 creator A5089361102 @default.
- W4306711595 date "2023-02-01" @default.
- W4306711595 modified "2023-10-18" @default.
- W4306711595 title "Synergistic engineering of structural and electronic regulation of In2Se3 for ultrastable Li − ion battery" @default.
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