Nanoporous platinum electrode grown on anodic aluminum oxide membrane: Fabrication, characterization, electrocatalytic activity toward reactive oxygen and nitrogen species

The nanoporous platinum electrode (NPt) prepared on anodic aluminum oxide membrane exhibited large specific area and good electrocatalytic activity to reactive oxygen (O2) and nitrogen species (NO and nitroxyl). Among them, the catalytic sensitivity of NPt electrode to O2 is up to 0.85 mA cm−2. The largest catalytic current for NO was obtained in pH 9.4 buffer while for nitroxyl was obtained in pH 5.4 buffer solution.186