Proceedings of Catalyst Design Strategies for Photo- and Electrochemical Fuel Synthesis (ECAT25)
Publication date: 19th December 2024
Solar energy is the largest exploitable source of renewable energy [1], making the development of new photocatalysts for artificial photosynthesis conversion crucial [2]. One of the materials that has attracted much attention for energy applications are the Covalent Organic Frameworks (COFs). They are crystalline polymers with ordered channel structures, relatively large pore apertures and high chemical and thermal stabilities [3].
In this work, we described the first COF based on BOPHY (IEC-2), along with two new COFs based on BODIPY (IEC-3 and IEC-4), ever reported in the literature. IEC-2 was employed as platform to prepare TiO2 based hybrid photocatalyst (10 wt% of COF loading) for solar driven hydrogen evolution reactions. The performance of this hybrid photocatalyst (IEC-2@T10) was studied at both lab scale and pilot plant scale under natural sunlight. The hybrid heterojunction results in an enhancement of the photonic efficiency, increased by 36% with respect to benchmark TiO2 [4].
In future studies, the process will be replicated using the new BODIPY-based COFs (IEC-3 and IEC-4) to investigate their photocatalytic behavior in the hydrogen evolution reaction.
This work received funding from AEI-MICINN/FEDER, UE through the Nhympha Project (PID2019-106315RB-I00), also thanks for the FPI contract (PRE2020-094445) associated to Nhympha, and N-GREEN (PID2022-141688OB-I00).
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