3D Nanoscale chemical analysis: a FIBSEM-SIMS facility optimised for soft and composite materials

3D 纳米级化学分析：针对软材料和复合材料优化的 FIBSEM-SIMS 设施

• 批准号: EP/V028855/1
• 负责人: Rik Brydson
• 金额: $ 219.94万
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV028855%2F1
• 关键词: 3D; Nanoscale; chemical; analysis; FIBSEM

The increasing complexity of materials that underpin advances in the digital technologies, additive manufacturing, healthcare, food, energy, environmental and fine chemical sectors requires a step-change in semi-quantitative, isotopic and trace chemical analysis from nanoscale volumes, contextualised in their native 3D structure. Furthermore, with urgent societal pressures for sustainable NetZero technologies, rapid analysis of both synthetic and natural materials over multiple length scales, can facilitate their improvement and optimal utilisation. An integrated UHV FIBSEM-ToFSIMS instrument provides an important tool for surface chemical analysis with isotopic and trace element sensitivity and also enables 3D nanoscale chemical characterisation of materials over volumes of 100,000 cubic micrometres via serial ion beam sectioning. This analysis fills a pivotal gap within correlative workflows for the combined structural and chemical imaging of materials at different length scales: between that probed by light and X-rays, and that obtained using analytical transmission electron microscopy, and ultimately atom probe tomography. The new equipment will possess flexibility to study both hard and also soft materials, via the cryo-workflow, thus increasing UK expertise in analysis of important, hybrid organic-inorganic materials. Such a capability opens up new horizons for the characterisation of complex soft solids (and potentially solid/liquid dispersions) used in a wide range of medical, chemical, structural and electronic applications.

支持数字技术、增材制造、医疗保健、食品、能源、环境和精细化工领域进步的材料日益复杂，需要从纳米级体积的半定量、同位素和痕量化学分析中进行逐步改变，并在其原生3D结构中进行情境化。此外，随着可持续NetZero技术的紧迫社会压力，对多种长度尺度的合成和天然材料进行快速分析，可以促进其改进和优化利用。集成的UHV FIBSEM-ToFSIMS仪器为具有同位素和微量元素灵敏度的表面化学分析提供了重要工具，并且还可以通过连续离子束切片对超过100，000立方微米的材料进行3D纳米级化学表征。这种分析填补了相关工作流程中的一个关键空白，用于在不同长度尺度上对材料进行结构和化学成像：在光和X射线探测之间，以及使用分析透射电子显微镜和最终原子探针断层扫描获得的。新设备将通过低温工作流程灵活地研究硬材料和软材料，从而提高英国在分析重要的混合有机-无机材料方面的专业知识。这种能力为在广泛的医疗、化学、结构和电子应用中使用的复杂软固体（和潜在的固体/液体分散体）的表征开辟了新的视野。

项目成果

In situ electron microscopy techniques for nanoparticle dispersion analysis of commercial sunscreen

用于商业防晒霜纳米颗粒分散分析的原位电子显微镜技术

• DOI: 10.1007/s11051-023-05769-4
• 发表时间: 2023
• 期刊: Journal of Nanoparticle Research
• 影响因子: 2.5
• 作者: Ilett M

Morphological features of halloysite nanotubes (HNTs) as revealed by various microscopies

各种显微镜揭示的埃洛石纳米管（HNT）的形态特征

• DOI: 10.1180/clm.2023.37
• 发表时间: 2023
• 期刊: Clay Minerals
• 影响因子: 1.5
• 作者: Gray-Wannell N