Development of gradient-based surface methods

摘要: This work is a detailed study concerning the development and investigation of surface electric field gradients to spatially control magnitude locale electrochemical reactions on surfaces. It will be illustrated that use potential enables simultaneous driving both oxidation reduction same electrode surface. We anticipate these features have broad impact over wide range applications including microscale devices, sensors, analytical testing biological requiring spatial phenomena. One example which presented in this such an application controllable pH gradient within microfluidic channel for isoelectric focusing. Spatial also demonstrated local adsorbates. In particular, are used maskless patterning polymers corrosion protection sensor applications. Further exploration delve into metal supported phospholipids, model system membranes. final fields consist electrodeposition spatiotemporal passivating oxide film growth, important studies catalysis. A separate project discussed fabrication low precious content monolayer coated nanoscale catalysts fuel cells. utilizes recently developed redox replacement reduce amount catalytic platinum only single monolayer.