Schukraft Giulia E M, Woodward Robert T, Kumar Santosh, Sachs Michael, Eslava Salvador, Petit Camille
Barrer Centre, Department of Chemical Engineering, South Kensington Campus, Imperial College London, London, SW7 2AZ, UK.
Current address: Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria.
ChemSusChem. 2021 Apr 9;14(7):1720-1727. doi: 10.1002/cssc.202002824. Epub 2021 Jan 22.
The design of robust, high-performance photocatalysts is key for the success of solar fuel production by CO conversion. In this study, hypercrosslinked polymer (HCP) photocatalysts have been developed for the selective reduction of CO to CO, combining excellent CO sorption capacities, good general stabilities, and low production costs. HCPs are active photocatalysts in the visible light range, significantly outperforming the benchmark material, TiO P25, using only sacrificial H O. It is hypothesized that superior H O adsorption capacities facilitate access to photoactive sites, improving photocatalytic conversion rates when compared to sacrificial H . These polymers are an intriguing set of organic photocatalysts, displaying no long-range order or extended π-conjugation. The as-synthesized networks are the sole photocatalytic component, requiring no added cocatalyst doping or photosensitizer, representing a highly versatile and exciting platform for solar-energy conversion.
设计坚固、高性能的光催化剂是通过CO转化生产太阳能燃料取得成功的关键。在本研究中，已开发出超交联聚合物（HCP）光催化剂用于将CO选择性还原为CO，该催化剂兼具出色的CO吸附能力、良好的整体稳定性和较低的生产成本。HCP在可见光范围内是活性光催化剂，仅使用牺牲剂H₂O时，其性能显著优于基准材料TiO₂ P25。据推测，与牺牲剂H₂相比，H₂O具有更强的吸附能力，有助于光活性位点的暴露，从而提高光催化转化率。这些聚合物是一类有趣的有机光催化剂，不具有长程有序性或扩展的π共轭结构。合成后的网络是唯一的光催化组分，无需添加助催化剂掺杂或光敏剂，是太阳能转换领域极具通用性且令人兴奋的平台。
