A 1,000-fold longer charge lifetime helps organic catalyst produce solar hydrogen faster
This article has been reviewed according to Science X's editorial process and policies .
This article has been reviewed according to Science X's editorial process and policies .
The short version
- Photocatalytic water splitting is a promising method for converting solar energy into hydrogen, which could help alleviate the global energy crisis.
- However, the rapid recombination of photogenerated electrons and holes severely limits the efficiency of organic photocatalysts.
- COFs are crystalline, porous polymers constructed from organic molecules linked by strong covalent bonds.
What happened
Their customizable structures allow for precise tuning of properties, making them ideal candidates for photocatalysis. In conventional conjugated COFs, flexible linkages can undergo out-of-plane rotation, disrupting π-conjugation and aggravating energy dissipation, which severely limits charge separation and photocatalytic efficiency.
Why it matters
To address this challenge, the researchers introduced a rigid, planar coumarin linkage into a fully conjugated COF through a one-pot polycondensation strategy.
Summary by Nerd News Network. Read the full article at Phys.org via the links above and below.