Alternating voltage induced ordered anatase TiO2 nanopores: An electrochemical investigation of sodium storage

Simin Li, Lingling Xie, Hongshuai Hou, Hanxiao Liao, Zhaodong Huang, Xiaoqing Qiu*, Xiaobo Ji

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

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 languageEnglish
Pages (from-to)196-202
Number of pages7
JournalJournal of Power Sources
Volume336
DOIs
Publication statusPublished - 30 Dec 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Alternating voltage
  • Anode
  • Sodium-ion battery
  • TiO nanopores

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