Abstract
For artificial photosynthesis, the lower photon conversion efficiencies of the photogenerated charges hinder the practical application in solar energy harvesting. The challenges are commonly ascribed to the sluggish surface redox reactions and significant surface charge recombination. Although there are several transient techniques applied for monitoring the surface charges evolution, how the experimental spectroscopy data is interpreted still involves ambiguous explanations on the complicated reactions. Here, we firstly developed a parallel 1st–nth order reaction model, which could be applied to quantitatively analyze the surface charge reactions. The microkinetic calculations were carried out by varying the reaction order, rate constants as well as the contribution of the competitive ones. Interestingly, the simplified reaction model can successfully demonstrate the charges react rate changes, which can be further applied in mechanism study complementary with those experimental methods.
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Data Availability
The datasets generated during and/or analysed during the current study are not publicly available due financial support, but are available from the corresponding author on reasonable request.
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Acknowledgements
This work is financially supported from National Natural Science Foundation of China (Project. Nos. 61504117, 52072327, 21673200 and U1604121), Natural Science Foundation of Jiangsu Province (BK20180103).
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Wang, X., Hu, J., Qu, J. et al. Chemical Kinetics of Parallel Consuming Processes for Photogenerated Charges at the Semiconductor Surfaces: A Theoretical Classical Calculation. Catal Lett 152, 2470–2479 (2022). https://doi.org/10.1007/s10562-021-03832-0
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DOI: https://doi.org/10.1007/s10562-021-03832-0