Comparison of Structure Stability of Graphene and MXene by Peak Force Tapping Mode of Atomic Force Microscope
CHEN Lihang1,2,†, CHEONG Lingzhi3,†, SHEN Cai2, LIU Zhaoping2
1 School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211,China 2 Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201,China 3 College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211,China
摘要 本工作通过原位原子力显微镜Peak force tapping模式对石墨烯和迈科烯(MXene)的结构稳定性进行了比较。当原位观察二维材料还原氧化石墨烯(rGO)时,rGO形貌基本不随时间发生改变;而当原位观察二维材料迈科烯V2C时,V2C表面发生纳米刻蚀现象,其形貌表面积随扫描时间逐渐减小。利用数据处理软件分析面积变化,计算出纳米刻蚀的速率,发现增大峰值力,平均纳米刻蚀速率随之增大,且在大气环境中的刻蚀速率大于在手套箱(Ar气氛围,H2O和O2含量小于1×10－6)中的速率,说明大气中的水分对材料的稳定性有影响,会加快纳米刻蚀的速率。本研究表明原子力显微镜Peak force tapping模式可以用来快速表征二维材料的稳定性。
Abstract: In this paper, the structural stability of graphene and MXene was compared by peak force tapping mode of AFM. When in-situ scanning of two-dimensional material of reduced graphene oxide (rGO), the morphology of rGO did not change with time, which indicated that peak force tapping mode had no damage effect on the stable structure surface; when in-situ scanning of two-dimensional material V2C, nano-etching occurred on the surface of V2C, and the morphology surface area decreased with scanning time. The data processing software was used to analyze the area change and calculate the nano etching rate. It was found that the average nano-etching rate increased with the increase of the peak force, and the etching rate in the atmospheric environment was higher than that in the glove box (Ar atmosphere, the content of H2O and O2 was less than 1×10-6), which indicated that the moisture in the atmosphere had an impact on the stability of the material and would accelerate the nano-etching. This study shows that the peak force tapping mode of AFM can be used to qualitatively characterize the stability of two-dimensional materials.
作者简介: 陈立杭,2019年6月毕业于中国计量大学,获得理学学士学位。现在中科院宁波材料所与宁波大学联合培养,攻读硕士学位,在沈彩副研究员的指导下进行研究。目前主要研究领域为材料表/界面结构显微分析。 张绫芷,宁波大学食品与药学学院教授。已在国内外期刊发表SCI论文60多篇,申请发明专利9项(授权1 项),撰写专著章节4 部,获得省市奖项5项。 沈彩,中国科学院宁波材料技术与工程研究所,“春蕾”副研究员,硕士研究生导师。宁波市“3315计划”创新人才; 中科院青年创新促进会会员。2008年在英国圣安得鲁斯大学化学系获得博士学位。主要致力于扫描探针显微镜技术的应用和新能源材料的开发。在JACS, ACS Nano,Energy Storage Materials, Nano Energy, Small Methods, Ultramicroscopy和 Journal of Microscopy等SCI期刊上发表论文90多篇,引用3000多次,H-index 33;申请发明专利10多项(授权7项)。主持国家自然科学基金面上项目、国家自然科学基金联合项目、国家自然科学基金青年项目、浙江省自然科学基金、宁波市自然科学基金等项目。作为子课题/子任务负责人参与国家重点研发计划“新能源汽车”专项、宁波市“科技创新2025”重大专项“高比能锂金属二次电池技术”等项目。担任Journal of Microscopy、Materials期刊编委、中国有色金属学报青年编委以及60多个学术期刊审稿人。 刘兆平,中国科学院宁波材料技术与工程研究所,高级研究员,博士研究生导师。主要研究方向为石墨烯和动力锂离子电池及其材料技术。已发表论文近170篇。
引用本文:
陈立杭, 张绫芷, 沈彩, 刘兆平. AFM峰值力轻敲模式下石墨烯与迈科烯结构稳定性的比较[J]. 材料导报, 2021, 35(22): 22006-22010.
CHEN Lihang, CHEONG Lingzhi, SHEN Cai, LIU Zhaoping. Comparison of Structure Stability of Graphene and MXene by Peak Force Tapping Mode of Atomic Force Microscope. Materials Reports, 2021, 35(22): 22006-22010.
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2021, Vol. 35 
