Electrochemistry in confined nanoscale geometries

涂层系统是复杂的、多组分的、动态的，对工程材料的使用寿命和安全性至关重要。它们通常是由于合金-涂层界面的电化学反应引起的分层而失效的。下面示意性地显示了一些相互关联的参数。在这个项目中，我们将提高对底漆降解过程的机理的了解，特别关注表面溶解、氧气还原和聚合物降解过程(特别是对氧气还原副产物的反应)。我们的目标是解开金属和涂层之间受限空间中活性物种的性质和浓度如何在聚合物降解中发挥作用。

Coating systems are complex multi-component and dynamic, and critical to operational lifetime and safety of engineering materials. They typically fail due to delamination caused by electrochemical reactions at alloy-coating interfaces. Some of the inter-related parameters are shown schematically below. In this project we will improve mechanistic understanding of undercoating degradation processes with particular focus on surface dissolution, oxygen reduction and polymer degradation processes (in particular in response to by-products of oxygen reduction). We aim to deconvolute how the nature and concentrations of reactive species in the confined space between metal and coating play a role in polymer degradation