Exsolved catalysts for the conversion of CO2 to methanol

英国政府承诺到2050年实现温室气体净零排放，到2035年大幅减少排放。然而，目前我们90%的能源供应依赖于化石燃料，这导致了额外的排放。为了使我们的能源供应脱碳并达到净零排放，我们需要增加氢气的使用，并利用正在排放的二氧化碳。使用氢气，再加上转化多余的二氧化碳，可持续地合成包括甲醇和更高级碳氢化合物在内的化学原料，可能会使二氧化碳排放量减少90%，使这一过程成为一个令人兴奋的未来前景。事实上，利用现有技术可以将二氧化碳用作燃料和化学品合成的原料，但材料方面的挑战，如动力学限制和较差的稳定性，阻碍了高效工艺的开发。要让这一点成为可行的、高效的催化剂，为二氧化碳加氢量身定做的催化剂设计至关重要。在这个项目中，我们的目标是(A)设计和制备稳定和高活性的材料，用于从二氧化碳生产化学品和燃料，以及(B)对控制选择性和活性的原则有基本的了解，以获得所需的产品。为了实现这些雄心勃勃的目标，我们使用了Exsolve，一种生产纳米颗粒的方法，这种纳米颗粒表现出增强的活性和针对失活机制的稳定性。该项目将探索从一系列载体中释放高活性异质结构，寻求开发新的最先进的催化剂，将二氧化碳转化为高价值的燃料或化学品。

The UK Government pledged to net-zero greenhouse gas emissions by 2050, significantly cutting back on emissions by 2035. However, currently, 90% of our energy supply is dependent on fossil fuels resulting in additional emissions. To decarbonise our energy supply and reach net zero, we need to increase our use of hydrogen as well as utilise the CO2 being emitted. The use of hydrogen, coupled with the conversion of that excess CO2, for the sustainable synthesis of chemical feedstocks, including methanol, and higher hydrocarbons, could result in 90% drop in CO2 emissions making thisprocess an exciting future prospect. Indeed, the use of CO2 as feedstock for fuel and chemicals synthesis is possible using existing technology but materials challenges, such as kinetic limitations and poor stability, prevent the development of efficient processes. For this to become viable, efficient catalyst design tailored towards CO2 hydrogenation is of essence. In this project we are aiming (a) to design and prepare stable and highly active materials for the production of chemicals and fuels from CO2, and (b) developing fundamental understanding of the principles that govern electivity and activity to the desired products. To accomplish these ambitious targets, we employ exsolution, an approach to producing nanoparticles which display enhanced activity and stability against deactivation mechanisms. This project will explore the exsolution of highly active heterostructures from a range of supports seeking to develop the new state of the art catalysts for CO2 conversion to high value fuels or chemicals.