Converting solar energy into chemical fuels can effectively match existing energy structures and mitigate climate change. An oxygen vacancies (Vox) based photo-thermochemical (PTC) method has characteristics of both photochemistry and thermochemistry, making it possible to use both solar light and heat. In this paper, perovskite oxide catalysts were prepared by a solvothermal method. Multiple experiments and characterizations were performed to investigate the reaction process. We also performed FDTD simulations to illustrate the plasmonic characteristics of the materials in the PTC. With the existence of Au nanoparticles, the stable production of CO had a maximum value of 7.28 μmol/g h, achieved by 1.5 gold-nanoparticle-loaded SrTiO₃.

将太阳能转换为化学燃料可以有效地匹配现有的能源结构并缓解气候变化。基于氧空位（Vox）的光热化学（PTC）方法兼具光化学和热化学的特性，因此可以同时使用太阳光和热能。本文采用溶剂热法制备了钙钛矿型氧化物催化剂。进行了多次实验和表征以研究反应过程。我们还进行了FDTD仿真，以说明PTC中材料的等离子体特性。随着金纳米颗粒的存在，稳定的CO的最大值为7.28μmol/ g h，这是通过负载1.5纳米金负载的SrTiO _3实现的。