Ionic-Liquid Mixtures: from Surface Structure to Catalytic Performance

离子液体混合物：从表面结构到催化性能

• 批准号: EP/T03114X/1
• 负责人: Kenneth McKendrick
• 金额: $ 86.67万
• 依托单位: Heriot-Watt University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FT03114X%2F1
• 关键词: Ionic; Liquid; Mixtures; Surface; Structure

Ionic liquids (ILs), with their unique combination of properties and wealth of potential applications, have captured the imagination of a large community of scientists in recent years. Fundamental studies on ILs have led to breakthroughs in our understanding and have enabled the development of ILs that are promising candidates for use in areas such as catalysis, carbon-capture and storage (CCS), biomass processing, as electrolytes in batteries, supercapacitors and dye-sensitised solar cells and more. This project aims to develop and utilise a wide range of experimental and computational methodologies to investigate the surface, and bulk, structure of IL mixtures that are currently poorly understood and consequently underutilised. We previously developed a novel technique that can probe liquid interfaces with direct chemical specificity, Reactive-Atom Scattering - Laser-Induced Fluorescence (RAS-LIF), and used it to detect H (or D)-containing functional groups at IL interfaces. We will extend its applicability to new chemical functionalities, in particular fluorinated species, by using high-energy Al-atoms as reactive probes of fluorinated functionality (on both cations and anions) at IL surfaces. This will be complemented by new capabilities for studying liquid surfaces by X-ray and neutron reflectivity under catalytically relevant conditions, and by bulk structure/property studies. The detailed understanding developed will lead to structure-property relationships in IL mixture systems that will be used in the final stages of the project in supported IL phase (SILP) catalysis and will support the deployment of new and bespoke functional ILs for catalysis in SILP systems. This ambitious project aims to cover the whole pipeline of IL development from preparation, to structural understanding, and then to industrially relevant applications.

近年来，离子液体（ILS）及其独特的财产和丰富应用结合，吸引了大型科学家社区的想象。对IL的基本研究已导致我们的理解突破，并使IL的发展成为有希望的候选者，以在催化，碳捕获和存储（CCS）（CCS），生物量处理，作为电池，超级电容器和染料中的电解质， - 敏化的太阳能电池等等。该项目旨在开发和利用广泛的实验和计算方法，以研究目前尚未理解并因此未充分利用的IL混合物的表面和批量结构。我们先前开发了一种新型技术，可以探测具有直接化学特异性，反应性原子散射 - 激光诱导的荧光（RAS-LIF）的液体界面，并将其用于检测IL接口处的H（或D）官能团。我们将通过使用高能量的原子作为IL表面上的氟化功能（阳离子和阴离子）的反应性探针，将其适用性扩展到新的化学功能，特别是氟化物种。这将由X射线和中子反射率在催化相关条件下以及批量结构/财产研究下研究液体表面的新功能补充。开发的详细理解将导致IL混合系统中的结构特性关系，该系统将在项目的最后阶段用于支持IL期（SILP）催化，并将支持SILP系统中新的和定制功能ILS的部署用于催化。这个雄心勃勃的项目旨在涵盖IL开发的整个渠道，从制备，结构理解，再到与工业相关的应用。

项目成果

Surface Structure of Alkyl/Fluoroalkylimidazolium Ionic-Liquid Mixtures.

• DOI: 10.1021/acs.jpcb.1c10460
• 发表时间: 2022-03-10
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY B
• 影响因子: 3.3
• 作者: Purcell, Simon M.;Lane, Paul D.;D'Andrea, Lucia;Elstone, Naomi S.;Bruce, Duncan W.;Slattery, John M.;Smoll, Eric J., Jr.;Greaves, Stuart J.;Costen, Matthew L.;Minton, Timothy K.;McKendrick, Kenneth G.
• 通讯作者: McKendrick, Kenneth G.

Understanding the Liquid Structure in Mixtures of Ionic Liquids with Semiperfluoroalkyl or Alkyl Chains.

• DOI: 10.1021/acs.jpcb.3c02647
• 发表时间: 2023-08-24
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY B
• 影响因子: 3.3
• 作者: Elstone, Naomi S.;Shimizu, Karina;Shaw, Emily V.;Lane, Paul D.;D'Andrea, Luciïa;Deme, Bruno;Mahmoudi, Najet;Rogers, Sarah E.;Youngs, Sarah;Costen, Matthew L.;McKendrick, Kenneth G.;Lopes, Jose Canongia N.;Bruce, Duncan W.;Slattery, John M.
• 通讯作者: Slattery, John M.

Superthermal Al Atoms as a Reactive-Atom Probe of Fluorinated Surfaces.

• DOI: 10.1021/acs.jpca.3c02167
• 发表时间: 2023-07-06
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY A
• 影响因子: 2.9
• 作者: Lane, Paul D.;Gstir, Thomas;Purcell, Simon M.;Swierczewski, Michal;Elstone, Naomi S.;Bruce, Duncan W.;Slattery, John M.;Costen, Matthew L.;McKendrick, Kenneth G.
• 通讯作者: McKendrick, Kenneth G.