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Efficient photocatalytic production of hydrogen peroxide using dispersible and photoactive porous polymers
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Efficient photocatalytic production of hydrogen peroxide using dispersible and photoactive porous polymers
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Efficient photocatalytic production of hydrogen peroxide using dispersible and photoactive porous polymers
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Journal Article
Efficient photocatalytic production of hydrogen peroxide using dispersible and photoactive porous polymers
2023
Overview
Developing efficient artificial photocatalysts for the biomimetic photocatalytic production of molecular materials, including medicines and clean energy carriers, remains a fundamentally and technologically essential challenge. Hydrogen peroxide is widely used in chemical synthesis, medical disinfection, and clean energy. However, the current industrial production, predominantly by anthraquinone oxidation, suffers from hefty energy penalties and toxic byproducts. Herein, we report the efficient photocatalytic production of hydrogen peroxide by protonation-induced dispersible porous polymers with good charge-carrier transport properties. Significant photocatalytic hydrogen peroxide generation occurs under ambient conditions at an unprecedented rate of 23.7 mmol g
–1
h
–1
and an apparent quantum efficiency of 11.3% at 450 nm. Combined simulations and spectroscopies indicate that sub-picosecond ultrafast electron “localization” from both free carriers and exciton states at the catalytic reaction centers underlie the remarkable photocatalytic performance of the dispersible porous polymers.
Current industrial production of hydrogen peroxide suffers from hefty energy penalties and toxic byproducts. Here, the authors report efficient photocatalytic production of hydrogen peroxide by protonation-induced dispersible porous polymers with good charge-carrier transport properties.
