Bibliographic Details
| Title: |
Engineering of Metal–Organic Framework-Derived CoTiO 3 Micro-Prisms for Lithium-Ion Batteries. |
| Authors: |
Li, Tao1 (AUTHOR) lit@mail.xzcit.cn, Song, Minghui2 (AUTHOR), Zhang, Qi3 (AUTHOR), Li, Yifan3 (AUTHOR), Yu, Gengchen2 (AUTHOR), Bai, Xue1,2 (AUTHOR) |
| Source: |
Molecules. Jan2025, Vol. 30 Issue 1, p34. 14p. |
| Subject Terms: |
*METALLIC composites, *TRANSITION metal compounds, *DENSITY functional theory, *AMORPHOUS carbon, *ENERGY conversion |
| Abstract: |
Metal–organic framework (MOF)-derived transition metal compounds and their composites have attracted great interest for applications in energy conversion and storage. In this work, hexagonal micro-prisms of Ni-doped CoTiO3 composited with amorphous carbon (NixCTO/C) were synthesized using Ti-Co-based MOFs as precursors. The experimental results indicate the substitutional doping of Ni2+ for Co2+ in CoTiO3 (CTO), leading to improved conductivity, as further confirmed by density functional theory calculations. Thus, the carbon-free sample of Ni-doped CTO exhibits improved lithium storage properties compared to the pristine one. Furthermore, when coupled with in situ-formed carbon, the dually modified Ni0.05CTO/C micro-prisms demonstrated a significantly increased reversible capacity of 584.8 mA h g−1, excellent rate capability, and superior cycling stability at a high current density of 500 mA g−1. This enhanced electrochemical performance can be attributed to the synergistic effect of Ni doping and carbon coating. [ABSTRACT FROM AUTHOR] |
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