Photo-induced electricity generated by thin-layer photogalvanic cells containing thionine and iron(II) salt.
スポンサーリンク
概要
- 論文の詳細を見る
The photogalvanic effects of thionine and Fe(II) salt systems were studied by use of thin-layer photocells. Three systems of the cell components, <I>i.e.</I>, SnO<SUB>2</SUB>/thionine–Fe(II) aq/Pt, SnO<SUB>2</SUB>/thionine–Fe(II)-gelatinized reagent/Pt, and SnO<SUB>2</SUB>/polymeric thionine membrane–Fe(II)/Pt, were compared. The photopotential Δ<I>E</I> and the photocurrent I were the largest in the third system. It was concluded that the excellent ability of the polymeric thionine system to generate the photo-induced electricity is due to the strong electrostatic repulsion between Fe<SUP>3+</SUP> and the semi-species bound to the cationic polymers, since the repulsion diminished the short-circuit in a solution or the bulk-backward reaction with Fe<SUP>3+</SUP>. The electron-recycling in a solution took place not only through the transportation of Fe<SUP>3+</SUP> to the cathode, but also through the electron-exchange reaction between Fe<SUP>2+</SUP> and Fe<SUP>3+</SUP> <I>via</I> hydrogen bonds.
- 公益社団法人 日本化学会の論文