Room-Temperature Assembled MXene-Based Aerogels for High Mass-Loading Sodium-Ion Storage

作     者：Fei Song Jian Hu Guohao Li Jie Wang Shuijiao Chen Xiuqiang Xie Zhenjun Wu Nan Zhang Fei Song;Jian Hu;Guohao Li;Jie Wang;Shuijiao Chen;Xiuqiang Xie;Zhenjun Wu;Nan Zhang

作者机构：College of Materials Science and EngineeringHunan UniversityChangsha 410082People’s Republic of China College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2022年第14卷第2期

页      面：282-295页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This work was supported by the National Natural Science Foundation of China(52071137,51977071,51802040,and 21802020) the Science and Technology Innovation Program of Hunan Province(2021RC3066 and 2021RC3067) the Natural Science Foundation of Hunan Province(2020JJ3004 and 2020JJ4192) N.Zhang and X.Xie also acknowledge the financial support of the Fundamental Research Funds for the Central Universities 

主　　题：MXenes Aerogel Room-temperature assembly Interfacial engineering Sodium-ion storage 

摘      要：Low-temperature assembly of MXene nanosheets into three-dimensional(3D) robust aerogels addresses the crucial stability concern of the nano-building blocks during the fabrication process,which is of key importance for transforming the fascinating properties at the nanoscale into the macroscopic scale for practical ***,suitable cross-linking agents(amino-propyltriethoxysilane,Mn^(2+),Fe^(2+),Zn^(2+),and Co^(2+)) as interfacial mediators to engineer the interlayer interactions are reported to realize the graphene oxide(GO)-assisted assembly of Ti_(3)C_(2)T_(x) MXene aerogel at room *** elaborate aerogel construction not only suppresses the oxidation degradation of Ti_(3)C_(2)T_(x) but also generates porous aerogels with a high Ti_(3)C_(2)T_(x) content(87 wt%) and robustness,thereby guaranteeing the functional accessibility of Ti_(3)C_(2)T_(x) nanosheets and operational reliability as integrated functional *** combination with a further sulfur modification,the Ti_(3)C_(2)T_(x) aerogel electrode shows promising electrochemical performances as the freestanding anode for sodium-ion *** at an ultrahigh loading mass of 12.3 mg cm^(-2),a pronounced areal capacity of 1.26 mAh cm^(-2) at a current density of 0.1 A g^(-1) has been achieved,which is of practical *** work conceptually suggests a new way to exert the utmost surface functionalities of MXenes in 3D monolithic form and can be an inspiring scaffold to promote the application of MXenes in different areas.