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Issue 7, 2014
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A hydrazone-based covalent organic framework for photocatalytic hydrogen production

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Abstract

Covalent organic frameworks (COFs) have recently emerged as a new generation of porous polymers combining molecular functionality with the robustness and structural definition of crystalline solids. Drawing on the recent development of tailor-made semiconducting COFs, we report here on a new COF capable of visible-light driven hydrogen generation in the presence of Pt as a proton reduction catalyst (PRC). The COF is based on hydrazone-linked functionalized triazine and phenyl building blocks and adopts a layered structure with a honeycomb-type lattice featuring mesopores of 3.8 nm and the highest surface area among all hydrazone-based COFs reported to date. When illuminated with visible light, the Pt-doped COF continuously produces hydrogen from water without signs of degradation. With their precise molecular organization and modular structure combined with high porosity, photoactive COFs represent well-defined model systems to study and adjust the molecular entities central to the photocatalytic process.

Graphical abstract: A hydrazone-based covalent organic framework for photocatalytic hydrogen production

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Publication details

The article was received on 02 Jan 2014, accepted on 16 Mar 2014 and first published on 17 Mar 2014


Article type: Edge Article
DOI: 10.1039/C4SC00016A
Citation: Chem. Sci., 2014,5, 2789-2793
  • Open access: Creative Commons BY license
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    A hydrazone-based covalent organic framework for photocatalytic hydrogen production

    L. Stegbauer, K. Schwinghammer and B. V. Lotsch, Chem. Sci., 2014, 5, 2789
    DOI: 10.1039/C4SC00016A

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