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Polymetallic Complexes: Modelling Heterogeneous Catalysis in Solution

多金属配合物：模拟溶液中的多相催化

基本信息

批准号：
EP/S005781/1
负责人：
Ruaraidh McIntosh
金额：
$ 31.29万
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：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FS005781%2F1
关键词：
Polymetallic Complexes Modelling Heterogeneous Catalysis

项目摘要

The production of chemicals on an industrial scale often involves the use of a catalyst because it makes production of that chemical more efficient and therefore more cost effective. The chemical industry generally prefers these catalysts to be heterogeneous (e.g. a solid catalyst in a liquid reaction) as these are simple to separate from the products once the reaction is complete. To develop and improve upon these catalysts it is important to obtain a deep understanding of how they work in order to understand the features that are vital to their reactivity. Achieving this for heterogeneous catalysts presents a significant challenge because it is often difficult to define the active form (or forms) of the catalyst. The research proposed here aims to bridge this gap by synthesising soluble compounds, containing small clusters of metal atoms, which will be used to model heterogeneous catalysts and study specific reactions that they can be used for. This method allows us to utilise many of the highly sensitive, solution based techniques, which are usually unavailable for heterogeneous catalysts due to their inherent insolubility, and obtain the comprehensive understanding that is crucial for catalyst development. In these initial studies, we will focus on the conversion of CO and CO2 into more valuable resources. The chemical industry currently relies heavily on feedstocks that are derived from depleting fossil fuels reserves. Establishing alternative feedstock sources that are derived from abundant, sustainable resources, such as CO and CO2, would promote an industry that is not reliant on the production of oil. CO and CO2 are relatively stable molecules therefore transforming them into more valuable compounds is challenging. However, it is well established that metal complexes can help to promote this conversion by weakening the C-O bonds they contain. We are interested in utilising our model catalysts to study the reactivity of these gases and ultimately apply our understanding of catalysts to establishing economically viable processes for their conversion.

工业规模的化学品生产通常涉及催化剂的使用，因为它使化学品的生产更有效率，因此更具成本效益。化学工业通常喜欢这些催化剂是非均相的(例如，液体反应中的固体催化剂)，因为一旦反应完成，这些催化剂很容易从产物中分离出来。为了开发和改进这些催化剂，重要的是要深入了解它们的工作原理，以便了解对它们的反应活性至关重要的特性。对于多相催化剂来说，实现这一点是一个巨大的挑战，因为通常很难定义催化剂的活性形式。这里提出的研究旨在通过合成含有小金属原子簇的可溶化合物来弥合这一差距，这些化合物将被用来对多相催化剂进行建模，并研究它们可以用于的特定反应。这种方法使我们能够利用许多高灵敏的基于溶液的技术，这些技术通常不适用于多相催化剂，因为它们固有的不溶性，并获得对催化剂开发至关重要的全面了解。在这些初步研究中，我们将重点关注将CO和CO2转化为更有价值的资源。化学工业目前严重依赖化石燃料储备枯竭所产生的原料。建立来自丰富的可持续资源的替代原料来源，如一氧化碳和二氧化碳，将促进一个不依赖石油生产的行业。CO和CO2是相对稳定的分子，因此将它们转化为更有价值的化合物是具有挑战性的。然而，众所周知，金属络合物可以通过削弱它们所含的C-O键来帮助促进这种转化。我们有兴趣利用我们的模型催化剂来研究这些气体的反应性，并最终将我们对催化剂的了解应用于建立经济可行的转化过程。