Related Experiment Video
Updated: Jun 30, 2026
08:12
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
Photoreforming of solid waste on 1 m2 scale using single-source precursor-derived co-catalyst films
Ariffin Bin Mohamad Annuar1, Yongpeng Liu1, Subhajit Bhattacharjee1
1Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK.
Nature Chemical Engineering
|June 29, 2026
Summary
This study presents a scalable method for producing hydrogen fuel from biomass and plastic waste using photocatalyst sheets. This innovation enables efficient waste valorization under ambient conditions, paving the way for practical applications.
Area of Science:
- Materials Science
- Chemical Engineering
- Renewable Energy
Background:
- Photocatalytic reforming can convert waste into hydrogen fuel.
- Scalability challenges include high-temperature processing and complex co-catalyst deposition.
Purpose of the Study:
- To develop scalable photocatalyst sheets for efficient waste valorization.
- To demonstrate a practical system for hydrogen production from biomass and plastic waste.
Main Methods:
- Fabrication of photocatalyst sheets using a single-source precursor ([Co4Zr2O(OnPr)10(acac)4]) on Al-doped SrTiO3.
- Utilized high-throughput spray coating for sheet fabrication.
- Demonstrated photoreforming of cellulose and polyethylene terephthalate (PET) derived feedstocks.
Main Results:
- Achieved centimeter- to meter-squared scale demonstration, including a 1-m² outdoor reactor.
- Produced hydrogen (H2) and value-added organics (formate, acetate, glycolate, glycolaldehyde dimer).
- Reported H2 yields of 5.24 and 1.51 mmol m⁻² for glucose and pretreated cellulose after 6 hours, respectively.
Conclusions:
- The developed photocatalyst sheets offer a scalable and efficient route for waste valorization.
- The system demonstrates practical potential for hydrogen fuel production.
- Techno-economic analysis estimates a competitive H2 cost of £0.93 mmol⁻¹.
