Verdianto, Ariono Lim, Hyojun Park, Jungjoon Kim, Sang-Ok 2024-01-19T09:33:42Z 2024-01-19T09:33:42Z 2023-02-23 2023-05 0925-8388 https://pubs.kist.re.kr/handle/201004/113788 Alloy-type SnSb is regarded as a potential candidate of Na-ion host material because of its high theoretical capacity achieved through reversible redox reactions. However, the drawbacks associated with massive volume variations limit its practical application. In this study, sandwich-like heterostructured composites composed of multilayered MXene and SnSb nanocrystals were prepared via a simple wet-chemical pre-cipitation method. The multilayered MXene with mechanical robustness and high electrical conductivity helped to accommodate the severe volume changes of SnSb nanocrystals, and provide a sufficient con-ductive network that facilitated electron and Na-ion transportation, and participate in electrochemical reactions through its capacitive behavior. The uniformly embedded SnSb nanocrystals in the interlayer of MXene prevented the re-stacking of the MXene multilayer upon cycling. The SnSb/MXene composite anode exhibited remarkable reversible capacity (398 mAh g-1 at 100 mA g-1) with dramatically improved Na-ion storage performance regarding cyclability and rate capability compared to pure SnSb anodes. (c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). English Elsevier BV Sandwich-like heterostructured SnSb/MXene composite anode for enhanced sodium-ion storage performance Article 10.1016/j.jallcom.2023.168950 1 Journal of Alloys and Compounds, v.942 Journal of Alloys and Compounds 942 Y scie scopus 000926570200001 2-s2.0-85147200549 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article LONG CYCLE LIFE CARBON SNSB INTERCALATION NANOFIBERS TI3C2TX Multilayered MXene SnSb nanocrystal Heterostructure Anode Sodium -ion battery