Abstract
Anatase TiO2 nanopores are successfully prepared through alternating voltage induced electrochemical synthesis (AVIES) approach at room temperature. When utilizing TiO2 nanoporous materials as an anode for Na-ion battery, it delivers a reversible charge-discharge capacity of around 180 mA h g−1 at 0.2 C (67 mA g−1) after 200 cycles. Meanwhile, it also shows a good cycling performance and a high rate capability due to unique nanoporous structures, which promote electrolyte wetting and facilitate diffusion of Na+. Additionally, cyclic voltammetry demonstrate that the sodium-ion storage of as-prepared TiO2 is a cooperative control behavior of diffusion and capacitance, but mainly controlled by capacitive behavior, which further facilitates a rapid (de-)intercalation of Na+.
| Original language | English |
|---|---|
| Pages (from-to) | 196-202 |
| Number of pages | 7 |
| Journal | Journal of Power Sources |
| Volume | 336 |
| DOIs | |
| Publication status | Published - 30 Dec 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 Elsevier B.V.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Alternating voltage
- Anode
- Sodium-ion battery
- TiO nanopores
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