碳基材料原子尺度低损伤透射电子显微分析
Atomic-scale investigation of carbon-based materials by gentle transmission electron microscopy
摘要
Abstract
Although carbon-based materials, such as graphene, metal-organic frameworks (MOFs), polymers and biomolecules, have aroused increasing scientific interest in the fields of physics, chemistry, materials science and molecular biology, their atomic-scale observation is still a challenge due to their structural instability under the electron beam. Ambiguous atomic arrangements have critically limited the fundamental understanding on these materials and their potential applications in electronics, mechanics, thermo-dynamics, catalysis, bioscience and medicine. Very recently, revolutionary sub-?ngstr?m resolution achievements of transmission electron microscopy (TEM) using a low voltage, a low electron dose, or a cryogenic environment have greatly facilitated the atomic-scale structural and chemical examination of electron beam sensitive materials. In particular, the ability to image light elements atom by atom gives unprecedented insight into the structures and properties of novel carbon-based materials. In this review, the recent de-velopments in advanced TEM combined with various imaging and spectroscopy techniques, and their use in examining graphene-based materials, MOFs, polymers, and biomacromolecules are summarized and discussed. The current challenges in materials re-search and trends for the future design of TEM equipment are outlined, which is expected to provide a deeper understanding of struc-ture–performance relationships and the discovery of new carbon materials.关键词
透射电子显微分析/电子束敏感碳基材料/原子分辨率/低加速电压/低电子剂量Key words
Transmission electron microscopy/Beam sensitive carbon-based materials/Atomic resolution/Low voltage/Low dose分类
化学化工引用本文复制引用
刘培植,郝兵,章海霞,许并社,郭俊杰..碳基材料原子尺度低损伤透射电子显微分析[J].新型炭材料,2021,36(3):497-511,15.基金项目
National Natural Science Foundation of China(52001222) （52001222）
Natural Science Foundation of Shanxi  （）
Province  （）
(20191102004,  （）
201901D111107,  （）
201901D211046) （）
Scientific and Technological In-novation Programs of Higher Education Institutions in Shanxi(STIP,2019L0120,2019L0253,2019L0346) （STIP,2019L0120,2019L0253,2019L0346）
Program for the Innovative Talents of Higher Educa-tion Institutions in Shanxi （）
Special Foundation for Youth SanJin Scholars （）
Overseas High-Level Talents Introduction Innovation Team Project.国家自然科学基金(52001222) （52001222）
山西省科技重大专项(20191102004) （20191102004）
山西省基础研究项目(201901D111107,201901D211046) （201901D111107,201901D211046）
山西省高等学校科技创新项目(2019L0120,2019L0253,2019L0346) （2019L0120,2019L0253,2019L0346）
山西省高等学校创新人才支持计划 （）
三晋学者基金 （）
山西省引进海外高层次人才创新团队. （）
