Interface Engineering for Solar Fuels

太阳能燃料界面工程

• 批准号: EP/S030727/1
• 负责人: Salvador Eslava
• 金额: $ 134.57万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FS030727%2F1
• 关键词: Interface; Engineering; Solar; Fuels

The use of fossil fuels and resulting CO2 emissions are exacerbating global climate change. The alternative use of hydrogen could cut CO2 emissions and improve air quality of urban areas, since burning hydrogen generates harmless water. To realise this potential we need to find clean ways to produce hydrogen fuel. Water splitting into hydrogen (and oxygen) can be achieved cleanly with electrolysers running on electricity from renewable sources such as solar, wind or hydropower. In a more direct manner, water can also be cleanly split using sunlight and semiconductor absorbing layers integrated in photoelectrodes of photoelectrochemical (PEC) cells. PEC solar water splitting is limited by both poor lifetime of photo-induced charges and poor catalytic properties of semiconductor surfaces to split water at the electrolyte interface.This fellowship aims to develop novel approaches to engineer the interface between semiconductors and electrolytes, in order to optimise the performance of the semiconductors and achieve efficient solar energy devices. We will develop fabrication methods to tune those interfaces and boost their PEC final performance. Photoelectrodes will be prepared oriented and with exposed active crystal facets, or with extra layers on their surface to mediate with aqueous electrolytes. A systematic approach involving novel syntheses, advanced electrochemical characterisation and solar water splitting performance tests will be carried out to establish the optimal conditions for the formation of photoelectrodes and the characteristics which make them better performing. Finally, best photoelectrodes will be integrated in tandem cells for more efficient solar water splitting.Preparing semiconductors with engineered interface will have a considerable impact on the research of (photo)electrochemistry, photocatalysis, photovoltaics and on their energy application. This will ensure important advances towards a more sustainable energy mix of clean energy for current and future generations.

化石燃料的使用和由此产生的二氧化碳排放正在加剧全球气候变化。氢的替代使用可以减少二氧化碳排放，改善城市地区的空气质量，因为燃烧氢可以产生无害的水。为了实现这一潜力，我们需要找到清洁的方法来生产氢燃料。利用太阳能、风能或水电等可再生能源发电的电解槽可以清洁地将水分解为氢气（和氧气）。以更直接的方式，也可以使用集成在光电化学（PEC）电池的光电极中的太阳光和半导体吸收层来清洁地分解水。PEC太阳能水分解受到光生电荷寿命短和半导体表面催化性能差的限制，无法在电解质界面分解水。该奖学金旨在开发新的方法来设计半导体和电解质之间的界面，以优化半导体的性能并实现高效的太阳能设备。我们将开发制造方法来调整这些接口并提高其PEC最终性能。光电极将被制备为定向的，并且具有暴露的活性晶面，或者在其表面上具有额外的层以与水性电解质介导。将进行涉及新颖合成、先进电化学表征和太阳能水分解性能测试的系统方法，以建立形成光电极的最佳条件和使其性能更好的特性。最后，最好的光电极将被集成在串联电池中，以更有效地太阳能水分解。制备具有工程界面的半导体将对（光）电化学、电化学、光化学及其能源应用的研究产生相当大的影响。这将确保在为今世后代提供更可持续的清洁能源组合方面取得重要进展。

项目成果

Editorial: Recent advances in water splitting

社论：水分解的最新进展

• DOI: 10.1016/j.cogsc.2021.100530
• 发表时间: 2021
• 期刊: Current Opinion in Green and Sustainable Chemistry
• 影响因子: 9.3
• 作者: Eslava S

Scalable all-inorganic halide perovskite photoanodes with >100 h operational stability containing Earth-abundant materials

可扩展的全无机卤化物钙钛矿光电阳极

• DOI: 10.26434/chemrxiv-2023-cl4m5
• 发表时间: 2023
• 作者: Daboczi M

Activation of 2D cobalt hydroxide with 0D cobalt oxide decoration for microplastics degradation and hydrogen evolution

• DOI: 10.1016/j.cej.2023.144569
• 发表时间: 2023-09
• 期刊: Chemical Engineering Journal
• 影响因子: 15.1
• 作者: Rossella Greco;Lucía Baxauli-Marin;Filipp Temerov;M. Daboczi;Salvador Eslava;Y. Niu;A. Zakharov;Meng Zhang;Taohai Li;Wei Cao