6), were also active for the photocatalytic H2 evolution reaction. As was in the case of titanates, the ionexchange and pillaring greatly affected the activity as shown in Fig. 9. In particular, protonated sample showed the higher activity as compared to the Na-type and Ta2O5. A further...
Hydrogen evolution reactionWater electrolysisSpilloverTiO 2 has limited applicability as an alternative to noble metal electrocatalysts for the hydrogen evolution reaction in aqueous solution due to the possibility of hydrogen intercalation under cathodic potential. In this work, the electrolytic reduction of...
H2 evolution from H2O/H2O2/MWO4 (M = Fe2+, Co2+, Ni2+) systems was studied for the first time. The MWO4 (M = Fe2+, Co2+, Ni2+) powders were synthesized by a salt aqueous solution reaction followed by calcination. The light band gaps of the FeWO4, CoWO4, and NiWO4 powders ...
A new kinetic method for calculating the form of open-circuit potential decay transients has therefore been developed and is applied to the hydrogen evolution reaction, with electrosorption, electrodesorption and recombination steps considered. The equations are solved numerically and the forms of the ...
In this study, the chemical bonding of the MoS2 nanolayer supported on vacancy mediated graphene and the hydrogen evolution reaction of this nanocatalyst system were investigated. An obvious reduction of the metallic state of the MoS2 nanolayer is noticed as electrons are transferred to form a ...
(193 mV) for electrochemical hydrogen evolution reaction (HER) in the alkaline solution, as the current density reaches −10 mA cm−2. Besides, considering that MPTexis rarely reported for photocatalytic/electrocatalytic hydrogen (H2) evolution, we decide to select NiPS3and study its ...
The results showed that the average rate of H2 evolution was about 61.07 μmol h-1 for La1/3NbO3 and 95.79 μmol h-1 for La1/3TaO3 after 24 hours of reaction time, while the initial rate of O2 evolution was 26.31 μmol h-1 for La1/3NbO3 and 16.21 μmol h-1...
A photocatalytic H2 evolution reaction was performed over copper doped TiO2. The influence of sulfate pretreatment over fresh TiO2 support and the Cu doping method has been evaluated. Wide structural and surface characterization of catalysts was carried out in order to establish a correlation between ...
Co-diglyoxime complexes catalyze H(2) evolution from protic solutions at modest overpotentials. Upon reduction to Co(I), a Co(III)-hydride is formed by reaction with a proton donor. Two pathways for H(2) production are analyzed: one is a heterolytic route involving protonation of the hydri...
Aggregation-enhanced photocatalytic H2 evolution activity of photosensitizing cadmium selenide quantum dots and platinum colloidal catalystsDHLA, dihydrolipoic acidDLS, dynamic light scatteringHER, H2 evolution reactionMBA, 4-mercaptobenzoic acidMEO, 2-mercaptoethanol...