Wang Jinjin, Du Cheng-Feng, Xue Yaqing, Tan Xianyi, Kang Jinzhao, Gao Yan, Yu Hong, Yan Qingyu
State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal Materials Northwestern Polytechnical University Xi'an Shaanxi P. R. China.
School of Materials Science and Engineering Nanyang Technological University Singapore.
Exploration (Beijing). 2021 Oct 30;1(2):20210024. doi: 10.1002/EXP.20210024. eCollection 2021 Oct.
Owing to the large surface area and adjustable surface properties, the two-dimensional (2D) MXenes have revealed the great potential in constructing hybrid materials and for Na-ion storage (SIS). In particular, the facilitated Na-ion adsorption, intercalation, and migration on MXenes can be achieved by surface modification. Herein, a new surface modification strategy on MXenes, namely, the reactive surface modification (RSM), is focused and illustrated, while the recent advances in the research of SIS performance based on MXenes and their derivatives obtained from the RSM process are briefly summarized as well. In the second section, the intrinsic surface chemistries of MXenes and their surface-related physicochemical properties are first summarized. Meanwhile, the close relationship between the surface characters and the Na-ion adsorption, intercalation, and migration on MXenes is emphasized. Following the SIS properties of MXenes, the surface-induced SIS property variations, and the SIS performance of RSM MXene-based hybrids are discussed progressively. Finally, the existing challenges and prospects on the RSM MXene-based hybrids for SIS are proposed.
由于二维（2D）MXenes具有较大的表面积和可调节的表面性质，它们在构建杂化材料和用于钠离子存储（SIS）方面展现出了巨大潜力。特别是，通过表面改性可以实现钠离子在MXenes上的吸附、嵌入和迁移。在此，重点阐述了一种针对MXenes的新型表面改性策略，即反应性表面改性（RSM），同时也简要总结了基于MXenes及其通过RSM过程获得的衍生物的SIS性能研究的最新进展。在第二部分中，首先总结了MXenes的固有表面化学及其与表面相关的物理化学性质。同时，强调了表面特性与钠离子在MXenes上的吸附、嵌入和迁移之间的密切关系。接着逐步讨论了MXenes的SIS性质、表面诱导的SIS性质变化以及基于RSM MXene的杂化物的SIS性能。最后，提出了基于RSM MXene的杂化物用于SIS的现有挑战和前景。
