Correlative Mapping of Crystal Orientation and Chemistry at the Nanoscale

纳米尺度晶体取向和化学的相关映射

• 批准号: EP/S021531/1
• 负责人: Sarah Haigh
• 金额: $ 176.59万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FS021531%2F1
• 关键词: Correlative; Mapping; Crystal; Orientation; Chemistry

Advanced materials lie at the heart of a huge number of key modern technologies, from aerospace and automotive industries, to semiconductors through to surgical implants. Central to the study of materials is the ability to analyse the structure of materials from the atomic scale, up through the microscopic structure and on to the size of individual components and devices. Only by understanding this hierarchy of structure can the properties and performance of devices and components be optimised. Transmission electron microscopy (TEM) is a key technique for characterising the local structure and chemistry of a wide range of materials. It is possible to gain information about the arrangement of atoms through imaging and electron diffraction patterns, and also to study composition via complementary spectroscopic measurements. One of the greatest strengths of the TEM is the ability to study tiny volumes of material, and hence to uncover information about the local defects and interfaces which often control the macroscopic properties of modern devices and materials.In this proposal we aim to install a state-of-the-art TEM with a dedicated electron diffraction camera that enable ultra-fast and large area analysis of the crystal structure, orientation and strain in engineering materials, alloys, ceramics and coatings. Furthermore, the high sensitivity of the new detector will also allow the same range of experiments using low electron doses. Excitingly this will open up new opportunities to study the atomic arrangement and microstructure of materials that are traditionally not suited to electron microscopy methods. These include organic materials (such as polymers, composites and pharmaceuticals) and also the variety of novel hybrid organic-inorganic materials that are showing great potential for technologies such as solar cells, gas storage and targeted catalysis. This new advance is particularly important as such organic and hybrid materials are difficult to characterise using traditional X-ray diffraction methods and the microstructure of ordered and disordered domains, defects and interfaces is often poorly understood for these materials. Only by understanding such structural complexity can we hope to control and harness their amazing breadth of properties.Combined with this diffraction capability will be high efficiency X-ray spectroscopy compositional analysis allowing the simultaneous analysis of the local atomic structure and chemistry of samples. Such correlative experiments will allow a better understanding of the macroscopic behaviour of materials and device, for example understanding how trace impurities affects the way cracks extend through barrier coatings or the structure changes that occur when hybrid framework materials absorb gas molecules. This will include the incorporation of advanced data science methods (often referred to as big-data approaches) to help process and understand the huge quantities of data that such a system can generate. In this way it should be possible to unlock secrets of material structure that would be impossible to ascertain by the isolated study of either crystal structure or composition.This new analytical power will be used in conjunction with a range of in-situ experimental methods that will allow materials and devices to be subjected to conditions such as temperature, fields, stress or chemical attack during the studies. By mimicking realistic operating conditions the true behaviour of materials can be explored and optimised for the benefit of all.

先进的材料位于许多关键现代技术的核心，从航空航天和汽车行业，到半导体到手术植入物。材料研究的核心是能够通过微观结构以及各个组件和设备的大小分析原子量表的材料结构。只有了解结构的这种层次结构，才能优化设备和组件的属性和性能。透射电子显微镜（TEM）是表征各种材料的局部结构和化学性质的关键技术。可以通过成像和电子衍射模式获得有关原子布置的信息，并通过互补的光谱测量研究组成。 One of the greatest strengths of the TEM is the ability to study tiny volumes of material, and hence to uncover information about the local defects and interfaces which often control the macroscopic properties of modern devices and materials.In this proposal we aim to install a state-of-the-art TEM with a dedicated electron diffraction camera that enable ultra-fast and large area analysis of the crystal structure, orientation and strain in engineering materials, alloys, ceramics和涂料。此外，新检测器的高灵敏度还将允许使用低电子剂量进行相同的实验范围。令人兴奋的是，这将为研究传统上不适合电子显微镜方法的材料的原子布置和微观结构提供新的机会。其中包括有机材料（例如聚合物，复合材料和药品），以及各种新型混合有机无机材料，这些材料在太阳能电池，储气和靶向催化等技术中都显示出很大的潜力。这种新的进步尤其重要，因为这种有机和混合材料很难使用传统的X射线衍射方法来表征，并且对于这些材料而言，有序和无序域，缺陷和界面的微观结构通常对这些材料的理解却很差。只有通过理解这种结构上的复杂性，我们才能希望控制和利用它们的惊人属性广度。具有这种衍射能力，才能高效X射线光谱谱图组成分析，从而可以同时分析样品的局部原子结构和化学。这种相关实验将使人们可以更好地了解材料和装置的宏观行为，例如，了解痕量杂质如何影响裂纹延伸的方式贯穿屏障涂层或当混合框架材料吸收气体分子时发生的结构变化。这将包括合并高级数据科学方法（通常称为大数据方法），以帮助处理和了解这种系统可以生成的大量数据。通过这种方式，应该可以解锁材料结构的秘密，而这些材料结构将无法通过晶体结构或组成的孤立研究来确定。此新的分析能力将与一系列现场实验性实验方法结合使用，这些方法将允许材料和设备在研究过程中受到温度，场，压力或化学攻击等条件。通过模仿现实的工作条件，可以探索和优化材料的真实行为，以使所有人的利益。

项目成果

Synthesis of molybdenum-doped rhenium disulfide alloy using aerosol-assisted chemical vapour deposition

• DOI: 10.1016/j.mssp.2021.105718
• 发表时间: 2021-06
• 期刊: Materials Science in Semiconductor Processing
• 影响因子: 4.1
• 作者: N. Al-Dulaimi;M. Al-Shakban;E. Lewis;Paul D. McNaughter;F. Alam;S. Haigh;David J. Lewis

Enhancing Hydrogen Production from the Photoreforming of Lignin.

提高木质素光重整的氢产量。

• DOI: 10.1002/cplu.202300411
• 发表时间: 2024
• 期刊: ChemPlusChem
• 影响因子: 3.4
• 作者: Aljohani M

A High-Resolution Versatile Focused Ion Implantation Platform for Nanoscale Engineering

用于纳米工程的高分辨率多功能聚焦离子注入平台

• DOI: 10.1002/adem.202300889
• 发表时间: 2023
• 期刊: Advanced Engineering Materials
• 影响因子: 3.6
• 作者: Adshead M

Phase stability of V- based multi-principal element alloys

V基多主元合金的相稳定性

• DOI: 10.1080/02670836.2022.2067645
• 发表时间: 2022
• 期刊: Materials Science and Technology
• 影响因子: 1.8
• 作者: Barron P

Directed Evolution of an Efficient and Thermostable PET Depolymerase

• DOI: 10.26434/chemrxiv-2021-mcjh6
• 发表时间: 2021-01-01
• 期刊: ChemRxiv
• 作者: Bell, E.;Smithson, R.;Day, P.
• 通讯作者: Day, P.