Chiral Spin Traps. The Spin Trapping Chemistry of 5-Methyl-5-phenylpyrroline-N-oxide (MPPO)

Novel (NH4)4[NiMo6O24H6]·5H2O – TiO2 composite system: Photo-oxidation of toluene under UV and sunlight-type illumination

“…10A). The corresponding parameters (2.0056, a N = 14.9 G, a H = 14.9 G) are characteristic of DMPO-OH adducts generated by the reaction of the probe molecule and hole-related species [50][51][52]. The accumulation of DMPO-OH radical adducts grows continuously in all cases but such radicals have a limited stability and a maximum concentration as a function of time is always detected (panel B of Fig.…”

Photocatalytic toluene degradation: braiding physico-chemical and intrinsic kinetic analyses

“…The formation of hydroxyltype radical species is thus measured through the initial rate of radical formation. [38][39][40] After normalization using the optical properties (see section 4 of the ESI †), we obtained a Fig. 5 Interpretation of the analytical procedure.…”

Ceria promotion of acetaldehyde photo-oxidation in a TiO2-based catalyst: a spectroscopic and kinetic study

“…Its EPR parameters (g = 2.0056, a N = 14.9 G, a H = 14.9 G) are characteristic of DMPO-OH adducts and measure the formation of OH˙radicals. [50][51][52] A comparison of the initial rate of OH˙for the first minutes (before multiple additions, consecutive reactions of OH˙radicals to the spin-trapping molecule would lead to the formation of diamagnetic species) is customarily used to compare the sample power to generate this radical species. [53][54][55] Fig.…”