文献类型：期刊文献

中文题名：从Na_(2)Cl二维晶体到NaCl_(2)二维晶体

英文题名：Two-Dimensional Crystal:From Na_(2)Cl to NaCl_(2)

作者：吴梦娇[1];雷晓玲[1];方海平[1,2]

机构：[1]华东理工大学物理学院,上海200237;[2]浙江大学物理学院,杭州310027

年份：2026

卷号：38

期号：1

起止页码：59

中文期刊名：化学进展

外文期刊名：Progress in Chemistry

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001692496200004)】；北大核心:【北大核心2023】；

基金：The work was supported by the National Natural Science Foundation of China (No. 12435001) , the Natural Science Foundation of Shanghai, China (No. 23JC1401400) , and the Fundamental Research Funds for the Central Universities.

语种：中文

中文关键词：反常化学计量比;二维晶体;碳基材料;水合离子-π作用

外文关键词：unconventional stoichiometries;two-dimensional crystals;carbon-based materials;hydrated cation-πinteraction

摘要：我们日常吃的食盐,氯化钠晶体(NaCl),由一份钠对应一份氯构成。事实上,常温常压下NaCl是唯一完全由钠和氯元素形成的晶体。近期,在常温常压下制备出具有反常化学计量比的Na_(2)Cl和Na_(3)Cl等新型二维晶体物质,其具有独特的电子结构,因此具有与常规三维晶体完全不同的物理化学性质。基于此,本文回顾了近期在石墨烯膜上观察到的自然环境下生成的阴阳离子比例反常(反常化学计量比)的Na_(2)Cl、NaCl_(2)、CaCl、K_(x)Cl和Li_(2)Cl等二维晶体的研究进展,侧重在环境条件下石墨烯表面的二维反常化学计量比晶体的制备、结构、特征分析和应用方面的最新进展,并且特别关注了具有反常化学计量比晶体的特殊性质,包括它们的压电性、金属性、异质结和室温铁磁性等。
The table salt we consume daily,sodium chloride crystal(NaCl),consists of one sodium atom for every chlorine atom.In fact,NaCl is the only crystal composed solely of sodium and chlorine elements that exists under normal temperature and pressure conditions.Recently,novel two-dimensional crystalline materials with unconventional stoichiometries,such as Na_(2)Cl and Na_(3)Cl,have successfully fabricated at ambient conditions.These two-dimensional(2D)crystals’unique electronic structures endow them with novel attributes,which differ from those of conventional three-dimensional crystals.This review summarizes the recent progress made in the fabrication and analysis of the structures,distinctive features,and applications of these 2D unconventional-stoichiometry crystals Na_(2)Cl、NaCl_(2)、CaCl、K_(x)Cl and Li_(2)Cl on graphene surfaces in ambient conditions.Their special properties,including their piezoelectricity,metallicity,heterojunction,and room-temperature ferromagnetism,are paid particularly close attention.Finally,some significant prospects and further developments in this exciting interdisciplinary field are proposed.