Zawar, Sidra Akbar, Muhammad Mustafa, Ghulam M. Ali, Ghulam Riaz, Saira Atiq, Shahid Chung, Kyung Yoon 2024-01-19T14:31:14Z 2024-01-19T14:31:14Z 2021-09-05 2021-06-25 0925-8388 https://pubs.kist.re.kr/handle/201004/116842 Advantageous utilization of sodium-ion batteries (SIBs) requires superior performance, enriched with cost-effective anode materials, having excellent storage capability, high conductivity, and structural stability. Hybrid structures based on inorganic metal oxides and organic nano-carbons are evolving as satisfactory electrode materials for the next-generation SIBs owing to their exceptional properties. In this study, Co2.98Zn0.02O4/CNTs hybrid is synthesized using a facile hydrothermal followed by a solvothermal route. As prepared hybrid has been utilized as an anode in a Na half cell and the results are compared with Co2.98Zn0.02O4 and bare Co3O4 anodes. Galvanostatic charge-discharge profiles revealed a high reversible capacity of 721 mAh g(-1) for the electrode containing carbon nanotubes (CNTs) i.e. Co2.98Zn0.02O4/CNTs exhibiting remarkable coulombic efficiency of 99% as compared to the other two electrodes. The hybrid anode showed improved capacity retention (289 mAh g(-1)) after 100 cycles as computed from the cyclic test which is much higher than bare Co3O4. The rate capability test of Co2.98Zn0.02O4/CNTs showed that specific capacity retained as high as 138 mAh g(-1)@10 C which is an outstanding rate performance, whereas bare Co3O4 couldn't perform even after 0.5 C. Sodium insertion/extraction is also improved for Co2.98Zn0.02O4/CNTs, as revealed by electrochemical impedance and diffusion coefficient. From these findings, it is inferred that carbon-based Zn-doped Co3O4 hybrid electrode materials can be a superior combination for high-performance and fast charging future SIBs. (C) 2021 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA CNTs embedded in layered Zn-doped Co3O4 nano-architectures as an efficient hybrid anode material for SIBs Article 10.1016/j.jallcom.2021.158730 1 JOURNAL OF ALLOYS AND COMPOUNDS, v.867 JOURNAL OF ALLOYS AND COMPOUNDS 867 scie scopus 000630276200004 2-s2.0-85100624425 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article Hybrid electrode material Na-ion batteries Cyclic stability CNTs Metal oxides