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

项目A02通过扫描电化学电池显微镜研究了钴基尖晶石和钙钛矿薄膜，包括Fe，Mn和V掺杂剂/取代物，以将OER活性和乙二醇氧化与组成和表面结构相关联。纳米电极上的颗粒方法用于研究具有限定形态的金属掺杂的尖晶石和钙钛矿纳米颗粒的固有活性，并确定在低于OER开始的电势的应用后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，和溶剂，包括水，乙腈，和二甲基甲酰胺。最后，将设计具有温度控制和使用有机电解质操作的连续操作的电化学流通式反应器。

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.