Catalytic activities of Pd-TiO2 film towards the oxidation of formic acid

Pd-TiO2/ITO films were prepared by a dip-coating and subsequent photo-deposition procedure. The Pd-TiO2/ITO film was well characterized by X-ray diffraction, scanning electron microscope and open circuit voltage. It was found that the Pd-TiO2/ITO film not only possessed higher photocatalytic and photoelectrocatalytic activities, compared with bared TiO2/ITO film, but also showed a certain non-photocatalytic activity towards HCOOH degradation at room temperature and atmosphere pressure. This is the first report about versatile catalytic activities of Pd-TiO2 film.