Comparative study of the effect of TiO2 support composition and Pt loading on the performance of Pt/TiO2 photocatalysts for catalytic photoreforming of cellulose

Chemo‐Enzymatic One‐Pot Oxidation of Cyclohexane via in‐situ H2O2 Production over Supported AuPdPt Catalysts

“…Notably, the subsequent introduction of Pt at low concentrations was not found to result in any detectable variation in structural motifs, which may be expected given the loadings of the individual metals. However, for those formulations with relatively high concentrations of Pt (≥0.06 wt.%), bands associated with CO coordinated to Pt domains may be observed [43] …”

“…However, for those formulations with relatively high concentrations of Pt (� 0.06 wt.%), bands associated with CO coordinated to Pt domains may be observed. [43] We subsequently established the significant improvement in selective cyclohexane oxidation activity that can be achieved via the in-situ production of H 2 O 2 , in comparison to that observed when either gaseous reagent (H 2 and O 2 (as air)) is used separately (Table S4). Interestingly significantly higher rates of cyclohexane conversion were achieved via the in-situ production of H 2 O 2 (17.4 %) compared to that obtained when using the preformed oxidant (0.8-4.6 % cyclohexane conversion at H 2 O 2 concentrations ranging from 50-200 ppm) at comparable concentrations to that generated by the chemo-catalyst and under analogous reaction conditions to those used for the selective oxidation of cyclohexane.…”

Subnanometric Pt clusters dispersed over Cs-doped TiO2 for CO2 upgrading via low-temperature RWGS: operando mechanistic insights to guide an optimal catalyst design

“…27 On the other hand, the bands located in the region between 2080 and 2060 cm −1 correspond to CO adsorbed on different Pt active sites. 37 Stakheev et al 38 studied the electronic state and localization of supported Pt atoms by CO adsorption. These authors reported that the bands at 2078 and 2059 cm −1 are related to CO linearly adsorbed on accessible Pt sites composed of only a few atoms involving different degrees of metal-support interaction or different particle geometries.…”

2023 roadmap on photocatalytic water splitting

“…sugars [96]) and raw biomass feedstocks (e.g. energy crops and lignocellulosic waste materials [100][101][102]), utilising both UV and visible active photocatalysts under simulated and natural irradiation [103][104][105]. Figure 10 illustrates the fundamental processes occurring during PC biomass reforming while also highlighting active areas of research.…”