微环境条件下纳米材料的形貌、组成和相演化的原位透射电镜表征和操作

IF 7.6 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Na Li, Tian Wang, Bo Wen, Zicheng Yin, Xinyang Li, Jie Feng, Shujiang Ding, Shengchun Yang, Guorui Yang, Yawei Yang
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引用次数: 0

摘要

纳米材料以其独特的性能在催化、能源、生物医学等领域有着广泛的应用。然而,从材料合成的角度来看,纳米材料的可控制备存在诸多挑战。这些包括控制它们的尺寸、形态、晶体结构和表面特性,这对它们在特定应用中的性能至关重要。这些问题的根本原因是对纳米材料生长过程的实时观察受到限制。另一方面,原位透射电子显微镜(TEM)克服了传统原位检测技术的局限性。它可以在原子尺度上实时观察和分析纳米材料生长过程中的动态结构演变。这有助于深入了解纳米材料的成核和生长机制,并有助于纳米材料的可控制备。本文综述了利用原位透射电镜从原子尺度上观察和研究了零、一维和二维纳米材料在不同环境(液相、气相和固相)中生长和演化的复杂动态过程。这对设计和制备具有特异性能的纳米材料具有重要意义。提出了原位瞬变电磁法的未来发展,结合先进的数据分析和与其他技术的集成,对纳米技术及其应用的进一步发展具有巨大的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
In situ transmission electron microscopy characterization and manipulation of the morphology, composition and phase evolution of nanomaterials under microenvironment conditions
Nanomaterials possess a broad range of applications in areas such as catalysis, energy, and biomedicine because of their unique properties. However, from the perspective of materials synthesis, there are numerous challenges in the controllable preparation of nanomaterials. These include the control of their size, morphology, crystal structure, and surface properties, which are essential for their performance in specific applications. The fundamental cause of these issues is the limitation in the real-time observation of the growth process of nanomaterials. In situ transmission electron microscopy (TEM), on the other hand, overcomes the limitations of traditional in situ testing techniques. It enables the real-time observation and analysis of the dynamic structural evolution during the growth of nanomaterials at the atomic scale. This contributes to a profound understanding of the nucleation and growth mechanisms of nanomaterials and facilitates the controlled preparation of nanomaterials. This review centers on the utilization of in situ TEM to observe and study the complex dynamic processes of zero-, one-, and two-dimensional nanomaterial growth and evolution in different environments (liquid, gas, and solid phases) from the atomic scale. This is of great significance for the design and preparation of nanomaterials with specific properties. The proposed future development of in situ TEM, in combination with advanced data analysis and integration with other techniques, holds great potential for the further advancement of nanotechnology and its applications.
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来源期刊
Chemical Science
Chemical Science CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
14.40
自引率
4.80%
发文量
1352
审稿时长
2.1 months
期刊介绍: Chemical Science is a journal that encompasses various disciplines within the chemical sciences. Its scope includes publishing ground-breaking research with significant implications for its respective field, as well as appealing to a wider audience in related areas. To be considered for publication, articles must showcase innovative and original advances in their field of study and be presented in a manner that is understandable to scientists from diverse backgrounds. However, the journal generally does not publish highly specialized research.
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