Rapid Synthesis of Fast-Charging TiNb2O7 for Lithium-Ion Storage via Ultrafast Carbothermal Shock DOI Creative Commons

Xianyu Hu,

Yunlei Zhong, Xiaosai Hu

et al.

Micromachines, Journal Year: 2025, Volume and Issue: 16(5), P. 490 - 490

Published: April 22, 2025

The development of fast-charging lithium-ion batteries urgently requires high-performance anode materials. In this paper, through an ultrafast carbothermal shock (CTS) strategy, titanium niobium oxide (TiNb2O7, TNO) with optimized structure was successfully synthesized within 30 s. By regulating the synthesis temperature to 1200 °C, TNO-1200 material obtained. Its lattice parameters (a-axis: 17.6869 Å) and unit-cell volume (796.83 Å3) were significantly expanded compared standard 17.51 Å, ~790 Å3), which widened migration channels. Rietveld refinement atomic position analysis indicated that partial overlap Ti/Nb atoms cooperative displacement oxygen induced by CTS reduced diffusion energy barrier. Meanwhile, cation disorder suppressed polarization effect. Electrochemical tests showed after 3000 cycles at a current density 10 C, specific capacity reached 125 mAh/g, retention rate 98%. EDS mapping confirmed uniform distribution elements absence impurity phases. This study provides efficient strategy theoretical basis for design battery materials atomic-scale structural engineering.

Language: Английский

Application of capacitive deionization in heavy metal ions removal and recovery: A review DOI
Hongyu Shi, Mengjiao Xu,

Luxiang Wang

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132027 - 132027

Published: Feb. 1, 2025

Language: Английский

Citations

1
Integrating MnO2 nanostructures into activated carbon fiber felt for enhanced chromium ions removal in capacitive deionization DOI

Thong Nguyen Tan,

Sandhya Babel

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: 197, P. 106970 - 106970

Published: March 3, 2025

Language: Английский

Citations

0
H-TiO2-NTs/CoMn-LDO/MoSe2-Ce electrodes for selective extraction of lead ions via capacitive deionization DOI
Changbin Tang,

Hongjiao Xu,

Yanrong Li

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132895 - 132895

Published: April 1, 2025

Language: Английский

Citations

0
Rapid Synthesis of Fast-Charging TiNb2O7 for Lithium-Ion Storage via Ultrafast Carbothermal Shock DOI Creative Commons

Xianyu Hu,

Yunlei Zhong, Xiaosai Hu

et al.

Micromachines, Journal Year: 2025, Volume and Issue: 16(5), P. 490 - 490

Published: April 22, 2025

The development of fast-charging lithium-ion batteries urgently requires high-performance anode materials. In this paper, through an ultrafast carbothermal shock (CTS) strategy, titanium niobium oxide (TiNb2O7, TNO) with optimized structure was successfully synthesized within 30 s. By regulating the synthesis temperature to 1200 °C, TNO-1200 material obtained. Its lattice parameters (a-axis: 17.6869 Å) and unit-cell volume (796.83 Å3) were significantly expanded compared standard 17.51 Å, ~790 Å3), which widened migration channels. Rietveld refinement atomic position analysis indicated that partial overlap Ti/Nb atoms cooperative displacement oxygen induced by CTS reduced diffusion energy barrier. Meanwhile, cation disorder suppressed polarization effect. Electrochemical tests showed after 3000 cycles at a current density 10 C, specific capacity reached 125 mAh/g, retention rate 98%. EDS mapping confirmed uniform distribution elements absence impurity phases. This study provides efficient strategy theoretical basis for design battery materials atomic-scale structural engineering.

Language: Английский

Citations

0