Platinum Nanoelectrodes Embedded in an Insulating Alumina Matrix: An Innovative Approach (pages 187–190)
G. A. Battiston, S. Daniele, P. Dluzewski, A. Gambirasi, R. Gerbasi, A. Rodriguez and A. Szczepanska
Article first published online: 25 APR 2005 | DOI: 10.1002/cvde.200404196
A novel strategy, based on MOCVD, has been employed for preparation of ensembles of platinum nanoelectrodes. Pt/Al2O3 films with different Pt loading were deposited in just one step on glass capillaries. Nanocomposite films with varying Pt/Al atomic ratios were investigated by both cyclic voltammetry and TEM. Ensembles of nanoelectrodes with either overlap or no overlap of the diffusion layers of each nanoelectrode are obtained, depending on the Pt loading. From TEM measurements average Pt particle size of 3 – 7 nm was determined (Figure).