Preparation of highly dispersed Cu on TiO2 using Cu(II) complexes

Nagashima K; Kokusen H; Ueno N; Matsuyoshi A; Kosaka T; Hasegawa M; Hoshi T; Ebitani K; Kaneda K; Aritani H; Hasegawa S

Chemistry Letters, Vol.29, No.3, 264-265, 2000

Nagashima K, Kokusen H, Ueno N, Matsuyoshi A, Kosaka T, Hasegawa M, Hoshi T, Ebitani K, Kaneda K, Aritani H, Hasegawa S

TiO2-supported Cu samples were prepared by using several Cu precursors, and isolated Cu2+ ions and their behavior of thermal reduction were evaluated by means of ESR spectroscopy. Only 50% of Cu2+ were reduced to Cu+ or Cu-0 by using cupric nitrate as a precursor. Highly dispersed Cu ions on TiO2 could be obtained by using Cu2+ complexes (Cu(acac)(2) and Cu(dbm)(2)) as a precursor.