Functionalized Surfaces as Templates for In Situ Formation of Gold Nanoparticle Catalyst Krisanu Bandyopadhyay, Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, MI 48128 TSPEI TRIMETHOXYSILYLPROPYL MODIFIED POLYETHLENIMINE Au Nanoparticle arrays on ITO 2 mm Au Nanoparticle arrays on Si Au Nanoparticle with size ~ 5.8 nm is synthesized in situ inside the monolayer template on different surfaces Nanoparticle arrays showed catalytic activity towards methanol electro-oxidation Electrocatalytic Activity of Nanoparticle Arrays