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Updated: Mar 16, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Sustained hydrogen peroxide production via MXene-functionalized supramolecular docking.
Jiaxun Sun1,2, Yuanming Zhang1, Wanheng Lu1
1Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
This study introduces a novel supramolecular platform for sustainable hydrogen peroxide (H2O2) production. The system achieves over 1000 hours of continuous H2O2 synthesis from air and water, offering a greener alternative.
Area of Science:
- Materials Science
- Chemical Engineering
- Environmental Science
Background:
- Conventional hydrogen peroxide (H2O2) production is energy-intensive.
- Existing direct H2O2 synthesis methods have short operational lifetimes (10-100 hours).
- Limitations stem from inefficient O2 capture and redox kinetics.
Purpose of the Study:
- To develop a stable and efficient supramolecular platform for direct H2O2 photosynthesis.
- To overcome the short operational lifetimes of current H2O2 production systems.
- To enable continuous H2O2 production for over 1000 hours without sacrificial agents.
Main Methods:
- Integration of O2 capture, H2O2 synthesis, and in situ utilization within a supramolecular platform.
- Utilizing mesoporous bromine-substituted covalent-organic frameworks (COFs) hydrogen-bonded to photothermal MXene.
- Employing a dual-pathway mechanism for H2O2 synthesis and pollutant degradation.
Main Results:
- Achieved continuous H2O2 production for over 1000 hours.
- Demonstrated a competitive H2O2 production rate of 2878 μmol g-1 h-1.
- Showcased complete pollutant removal and durable operation under diverse conditions.
Conclusions:
- The supramolecular platform offers a sustainable and efficient method for H2O2 production.
- Programmable O2 docking, directional charge transport, and localized H2O2 utilization are key features.
- This approach advances decentralized chemical manufacturing and environmental remediation.
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