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Improving hydrogen production for carbon-nitride-based materials : crystallinity, cyanimide groups and alkali metals in solution working synergistically

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Teixeira,  Ivo
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Tarakina,  Nadezda V.
Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Silva,  Ingrid F.
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Lopez Salas,  Nieves
Nieves Lopez Salas, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Savateev,  Aleksandr
Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Antonietti,  Markus
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Teixeira, I., Tarakina, N. V., Silva, I. F., Atta Diab, G. A., Lopez Salas, N., Savateev, A., et al. (2022). Improving hydrogen production for carbon-nitride-based materials: crystallinity, cyanimide groups and alkali metals in solution working synergistically. Journal of Materials Chemistry A, 10(35), 18156-18161. doi:10.1039/D2TA05571F.


Cite as: https://hdl.handle.net/21.11116/0000-000A-E952-3
Abstract
The recent findings on the fundamental understanding of the activity of carbon nitride-based materials in the hydrogen evolution reaction (HER) allow to design rationally the photocatalytic systems with improved activities. Herein, combining highly ordered materials with cyanimide defects and alkali metal cations in the solution, we demonstrated an important synergistic effect which for cyanimide modified K-PHI is revealed in 12 times higher apparent quantum yield (AQY) compared to K-PHI free of surface cyanimide groups.