Development of Oxygen Vacancy-Rich Black TiO₂-Based Electrode Catalyst for Lithium-Oxygen Batteries

DOI

10.2991/978-94-6463-797-7_21How to use a DOI?

Keywords

White TiO2; Black TiO2; Oxygen vacancy; Lithium-oxygen batteries

Abstract

Lithium-oxygen batteries (LOBs) are promising candidates for next-generation energy storage systems due to their high theoretical energy density. However, several challenges currently hinder the practical implementation of these batteries, and addressing these challenges requires the use of innovative electrode materials. In this regard, titanium dioxide-based catalysts are highly desirable as electrode materials due to their excellent catalytic activities and stability. Herein, we develop an oxygen vacancy-rich black titanium dioxide (TiO₂) catalyst as a possible cathode electrode for lithium-oxygen batteries through a chemical reduction method followed by calcination under argon gas. The physicochemical characterization of the synthesized oxygen vacancy-rich black TiO₂ catalyst was compared to its white TiO₂ counterpart using XRD, FTIR, Raman, and BET techniques. The results from electrochemical testing demonstrate that the oxygen vacancy-rich black TiO₂ exhibits excellent electrochemical performance compared to its white TiO₂ counterpart, which was attributed to the improved electrical conductivity and good catalytic activity stimulated by oxygen vacancies. The exceptional electrochemical performance of oxygen-rich vacancy black TiO₂ indicates their potential for use in high-performance lithium-oxygen batteries.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Ntakadzeni Madima
AU  - Thembisile Khumalo
AU  - Tshimangadzo Munonde
AU  - Mpfunzeni Raphulu
PY  - 2025
DA  - 2025/07/22
TI  - Development of Oxygen Vacancy-Rich Black TiO₂-Based Electrode Catalyst for Lithium-Oxygen Batteries
BT  - Proceedings of the 1st International Symposium on African Sustainable Energy Solutions (AfrSusEnS 2024)
PB  - Atlantis Press
SP  - 157
EP  - 164
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-797-7_21
DO  - 10.2991/978-94-6463-797-7_21
ID  - Madima2025
ER  -