High-Resolution Nanoelectrochemical Microscopy and Single Particle Electrocatalysis for Activity-Structure Correlation (A02)

项目A02研究了钴基尖晶石和钙钛矿薄膜，包括铁、锰和钒掺杂/取代基，通过扫描电化学细胞显微镜研究了OER活性和乙二醇氧化与组成和表面结构的关系。纳米电极上粒子的方法被用来研究具有特定形貌的金属掺杂的尖晶石和钙钛矿纳米粒子的本征活性，并识别当施加低于OER开始的电位时催化剂表面的结构变化。这种方法扩展到其他底物，如肉桂醇、乙二醇、环己烯，以及包括水、乙腈和二甲基甲酰胺在内的溶剂。最后，设计了一个连续运行的、可控温的有机电解液操作的电化学流过流反应器。

Project A02 studies cobalt-based spinel and perovskite films including Fe, Mn, and V dopants/substituents by scanning electrochemical cell microscopy to correlate the OER activity and ethylene glycol oxidation with the composition and surface structure. The particle-on-the-nanoelectrode approach is used to study the intrinsic activity of metal-doped spinel and perovskite nanoparticles with defined morphology and to identify structural changes at the catalyst surface upon applications of potentials below the onset of the OER. This approach is extended to other substrates such as cinnamyl alcohol, ethylene glycol, cyclohexene, and solvents including water, acetonitrile, and dimethylformamide. Finally, a continuously operated electrochemical flow-through reactor with temperature control and operated with organic electrolytes will be designed.