Electrocatalytic oxidation of nitric oxide at TiO2–Au nanocomposite film electrodes
作者： Elizabeth V. Milsom , Jan Novak , Munetaka Oyama , Frank Marken
DOI: 10.1016/J.ELECOM.2006.10.018
关键词:
摘要: Structured films of TiO2 (anatase) nanoparticles (ca. 6 nm diameter) and gold (nominal 20 nm are formed via a layer-by-layer deposition procedure. deposited with Nafion polyelectrolyte binder followed by calcination to give mesoporous thin film electrode. Gold incorporated into this employing poly(diallyldimethylammonium chloride) stable TiO2–gold nanocomposite. This methodology allows well-defined structured be which re-usable after 500 °C heat treatment in air. Electrochemical experiments performed aqueous KCl buffer solutions for the oxidation nitric oxide, NO, nitrite phosphate solution. It is shown that NO occurs as highly effective electrocatalytically amplified process at surface nanocomposite probably co-evolution oxygen, O2. In contrast, nitrate same potential but without oxygen evolution. A mechanistic scheme detection proposed.
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