H2 Evolution with Covalent Organic Framework Photocatalysts
نویسندگان
چکیده
منابع مشابه
H2 Evolution with Covalent Organic Framework Photocatalysts
Covalent organic frameworks (COFs) are a new class of crystalline organic polymers that have garnered significant recent attention as highly promising H2 evolution photocatalysts. This Perspective discusses the advances in this field of energy research while highlighting the underlying peremptory factors for the rational design of readily tunable COF photoabsorber-cocatalyst systems for optimal...
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We demonstrate photocatalytic hydrogen evolution using COF photosensitizers with molecular proton reduction catalysts for the first time. With azine-linked N2-COF photosensitizer, chloro(pyridine)cobaloxime co-catalyst, and TEOA donor, H2 evolution rate of 782 μmol h-1 g-1 and TON of 54.4 has been obtained in a water/acetonitrile mixture. PXRD, solid-state spectroscopy, EM analysis, and quantum...
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Ordered π-columnar structures found in covalent organic frameworks (COFs) render them attractive as smart materials. However, external-stimuli-responsive COFs have not been explored. Here we report the design and synthesis of a photoresponsive COF with anthracene units as the photoresponsive π-building blocks. The COF is switchable upon photoirradiation to yield a concavo-convex polygon skeleto...
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Porous crystalline materials with a well-defined pore size distribution are essential for applications in gas storage, catalysis, separation, optics and chemical sensing. Specifically, large pores reaching several nm diameter permit the design of a multitude of nano-devices interacting with large guest molecules. To gain maximum control over local structure, chemistry and physics in the pore sy...
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ژورنال
عنوان ژورنال: ACS Energy Letters
سال: 2018
ISSN: 2380-8195,2380-8195
DOI: 10.1021/acsenergylett.7b01123