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Affiliation of Author(s):材料科学与技术学院

Journal:Chem. Eng. J.

Abstract:MXenes, 2D transition metal carbides and nitrides, deliver competitive performance in sodium ion batteries because of metallic conductivity, hydrophilic surface and good mechanical stability. However, similar to other individual 2D materials, the electrochemical performance of MXenes was hindered by the modest capacity and the tendency of restacking. To overcome these limitations, construction heterolayered architecture with 2D high capacity SnS2nanoplates is an effective strategy. The heterolayered electrode combined the metallic conductive of MXene and high redox activity SnS2can achieve a synergistic enhancement. When used as anodes for sodium ion batteries, the MXene/SnS2composite exhibited a great performance in term of capacity, rate capability, and cycling stability. A superior cycling could still obtain at extreme temperature that MXene/SnS25:1 electrode maintain a reversible capacity of 120 mAh g−1after 125 cycles at 0 °C. © 2017 Elsevier B.V.

ISSN No.:1385-8947

Translation or Not:no

Date of Publication:2018-01-01

Co-author:吴宇婷,聂平,吴朗源,Zhang Xiaogang

Correspondence Author:Zhang Xiaogang,Dou Hui