A high-capacity of oxygen induced SrTiO3 cathode material for rechargeable Alkaline Zinc battery

Wong, Christelle Pau Ping and Lai, Chin Wei and Lee, Kian Mun and Pan, Guan Ting and Chong, Kok Boon and Johan, Mohd Rafie and Juan, Joon Ching and Yang, Thomas Chung Kuang (2021) A high-capacity of oxygen induced SrTiO3 cathode material for rechargeable Alkaline Zinc battery. Materials Science in Semiconductor Processing, 130. p. 105802. ISSN 1369-8001, DOI https://doi.org/10.1016/j.mssp.2021.105802.

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Official URL: https://doi.org/10.1016/j.mssp.2021.105802


The tremendously usage in batteries has led to development of safe, economical and environment friendly batteries. Therefore, the progress to explore new type of battery such as rechargeable alkaline zinc batteries (RAZBs) based on metal oxides has attracted many interests. In this study, RAZBs based on SrTiO3 nanoparticles as cathode is successfully produced and also managed to generate high specific volume capacity of 387 mAh cm−3 at 1.2 V. Based on the total volume of battery, the energy density of the battery is 37 mWh cm−3. The SrTiO3 prepared via facile hydrothermal process exhibits large specific surface area. Besides the surface area, the presence of oxygen vacancies (Vo¨) in SrTiO3 is also contributed to the high electron contact efficiency. The presence of Vo¨ play an important role in the redox property and rechargeability of SrTiO3 as cathode. The RAZBs based on SrTiO3 nanoparticles shows a good cycling performance and achieve 100% coulombic efficiency. In conclusion, the new cathode material based on SrTiO3 create new possibilities for RAZBs. © 2021

Item Type: Article
Funders: University of Malaya for funding this research work under the Grand Challenge Grant ( GC002A-15SBS ), Partnership grant ( PV029-2017 ), Joint Research ( RU001-2018 ), Institute of Research Management & Services (Student Financial Aid 2019 ), National Taipei University of Technology - University of Malaya Joint 5 Research Program ( NTUT-UM-109-02 ), Ministry of Science and Technology ( MOST, 108-2221-E-027-072 )
Uncontrolled Keywords: Batteries; Perovskite; SrTiO3; Hydrothermal; Oxygen vacancies
Subjects: Q Science > QD Chemistry
T Technology > TP Chemical technology
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 03 May 2021 08:11
Last Modified: 03 May 2021 08:11
URI: http://eprints.um.edu.my/id/eprint/25937

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