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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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Supplementary files

Article information


Submitted
02 Jan 2014
Accepted
16 Mar 2014
First published
17 Mar 2014

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2014,5, 2789-2793
Article type
Edge Article

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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