Loading CoOxcocatalyst significantly enhanced the WOR surface kinetics of Mo:BiVO4. The photocatalytic O2evolution activity of CoOx/Mo:BiVO4was more than twice as much as that of Mo:BiVO4(Fig.S9a). The enhancement water oxidation was further verified by the improved photoelectrochemical performance ...
In accordance with the absence of the sacrificial electron donor, besides H2, evolution of O2 was also observed in the absence of TEOA at a rate that agrees with the expected stoichiometry for overall water splitting, with some differences at short irradiation times. This deviation from the 2:...
S atoms are quadri-pyramidal bonds, corresponding to three Co–S bonds (2.336 Å) and a S–S bond (2.013 Å). Raman Spectra were utilized to explore the state of carbon. The intensity ratio of D versus G band (ID/IG) is usually used to measure the disorder of the ...
Enhanced evolution of O2 is measured for n-type GaN nanowires, which can be well correlated to the presence of upward surface band bending. The solid lines are guide to the eye. constant for TMg up to 230 °C, which corresponds to the compensation of background n-type dopants by Mg ...
Obviously, the bond strength has a great influence on the extent of adsorption/desorption of the intermediate states during catalysis. The weaker Se–H bond as compared to P–H and S–H is expected to facilitate the product desorption from catalytic sites which circumvents catalyst poisoning and...
Lastly, O2 is released from the (110) surface. The free energies of the four processes are all uphill; it is necessary to apply potential bias (or overpotential) to make each step downhill. The overpotential can be obtained by the difference between the voltage for all free-energy steps ...
The highly oxidized Co3+ is reported to be the active site of the electrocatalytic OER [51]. In Figure 2f, the characteristic peak at 530.7 eV is attributed to the lattice oxygen metal–O bond in Co(OH)2/α-NiMoO4 NWs/CC. The characteristic peaks at 532.12 eV and 531.30 eV can ...