A tunable azine covalent organic framework platform for visible light-induced hydrogen generation

Vijay S. Vyas, Frederik Haase, Linus Stegbauer, Gökcen Savasci, Filip Podjaski, Christian Ochsenfeld and Bettina V. Lotsch ()
Additional contact information
Vijay S. Vyas: Max Planck Institute for Solid State Research
Frederik Haase: Max Planck Institute for Solid State Research
Linus Stegbauer: Max Planck Institute for Solid State Research
Gökcen Savasci: University of Munich (LMU)
Filip Podjaski: Max Planck Institute for Solid State Research
Christian Ochsenfeld: University of Munich (LMU)
Bettina V. Lotsch: Max Planck Institute for Solid State Research

Nature Communications, 2015, vol. 6, issue 1, 1-9

Abstract: Abstract Hydrogen evolution from photocatalytic reduction of water holds promise as a sustainable source of carbon-free energy. Covalent organic frameworks (COFs) present an interesting new class of photoactive materials, which combine three key features relevant to the photocatalytic process, namely crystallinity, porosity and tunability. Here we synthesize a series of water- and photostable 2D azine-linked COFs from hydrazine and triphenylarene aldehydes with varying number of nitrogen atoms. The electronic and steric variations in the precursors are transferred to the resulting frameworks, thus leading to a progressively enhanced light-induced hydrogen evolution with increasing nitrogen content in the frameworks. Our results demonstrate that by the rational design of COFs on a molecular level, it is possible to precisely adjust their structural and optoelectronic properties, thus resulting in enhanced photocatalytic activities. This is expected to spur further interest in these photofunctional frameworks where rational supramolecular engineering may lead to new material applications.

Date: 2015
References: Add references at CitEc
Citations: View citations in EconPapers (11)

Downloads: (external link)
https://www.nature.com/articles/ncomms9508 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9508

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms9508

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().