Surface Redox Characteristics of Mixed Oxide Catalysts Used for Selective Oxidation

Porous olive-like BiVO4: Alcoho-hydrothermal preparation and excellent visible-light-driven photocatalytic performance for the degradation of phenol

“…It is observed from Fig. 5(A) that each of the BiVO 4 samples as well as the Bi 4 V 2 O 11 sample exhibited the spinorbit splitting signals of Bi 4f 7/2 and 4f 5/2 at BE = 158.4 and 163.7 eV, respectively, which were characteristic of Bi 3+ [51]. In other words, all of the bismuth ions in the BiVO-1.5, BiVO-DA-1.5, BiVO-DA-3, BiVO-DA-7, BiVO-DA-11, BiVO-OL-1.5, and BiVO-OA-1.5 samples existed in trivalency.…”

Studies on the SbOx species of SbOx/SiO2 catalysts for methane-selective oxidation to formaldehyde

“…Antimony has been widely used as a key component in many selective oxidation catalysts, including V-Sb-O [1][2][3][4][5], MoSb-O [6,7], Fe-Sb-O [8,9], Sn-Sb-O [10,11], V-Sb-Ni-O [12], Re-Sb-O [13]. Excess antimony of antimony-containing mixed oxide catalysts has been found to be a clue to high selectivity to partially oxidized products [14].…”

Rules for Selective Oxidation Exemplified by Methanol Selective Oxidation on Iron Molybdate Catalysts

“…We have also seen this preferential segregation in other bicationic oxides, including FeSbO 4 , Bi 2 Mo 2 O 9 , VSbO 4 and USb 3 O 10 [26][27][28].…”

“…We believe that these rules may apply to a range of bicationic inorganic catalysts [26][27][28], especially to oxides, but probably also in a similar way to sulphides and nitrides. Fig.…”