Satoyama Mace Initiative Launches Bio-Integrated Breakthrough for Sustainable Hydrogen and Carbon Equity
- Ben
- 9月18日
- 讀畢需時 1 分鐘
The study demonstrates that chlorophyll-modified cuprous oxide (Cu₂O) electrodes show superior light absorption, particularly in the Q-band region (600–700 nm), leading to a photocurrent density of 3.26 mA/cm² and a significant increase in applied bias photon-to-current efficiency (ABPE) from 0.82% to 1.37%. Compared with unmodified Cu₂O, the chlorophyll-modified electrode exhibited a sevenfold improvement in stability, with only a 7.9% photocurrent decline after extended operation versus a 34.8% decline in the unmodified version.
The modification also improved charge carrier lifetime (from 0.9 to 1.1 ms), validating enhanced charge separation and reduced recombination. Density of states (DOS) calculations confirmed bonding interactions between Mg (from chlorophyll) and O (from Cu₂O), ensuring robust heterojunction formation.
“This bio-inspired electrode design not only accelerates solar-driven hydrogen production but also prevents rapid material degradation, making it both efficient and durable,” explained the Satoyama Mace Initiative’s research team. (The research, recently published in ACS Sustainable Resource Management (Cite this: ACS Sustainable Resour. Manage. 2025, 2, 8, 1571–1579.)
