Preparation of supported platinum catalysts from tetrakis (Triphenylphosphine) platinum by impregnation

γ-Alumina-supported Pt17 cluster: controlled loading, geometrical structure, and size-specific catalytic activity for carbon monoxide and propylene oxidation

“…S4 † ). 62 Thus, PPh 3 was removed from the Pt 17 cluster by calcination at 500 °C. In the DR spectra of the sample after calcination ( Fig.…”