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Fuel from sunlight: Covalent organic frameworks as integrated platforms for photocatalytic water splitting and CO2 reduction

Total Cost €


EC-Contrib. €






 COFLeaf project word cloud

Explore the words cloud of the COFLeaf project. It provides you a very rough idea of what is the project "COFLeaf" about.

backbone    photosynthetic    albeit    spotlights    organic    reactive    sunlight    efficient    nature    semiconductor    heterogeneous    interplay    catalysis    hydrogen    inspired    subsystems    renewable    fuels    carbon    platforms    crystal    crystallinity    photocatalysts    porosity    ways    lower    generations    artificial    site    theory    architectures    materials    gap    mechanistic    cof    conversion    polymeric    semiconducting    describe    delineate    frameworks    splitting    levels    shuttles    water    photosynthesis    society    intermediates    cofs    envision    methanol    hallmarks    solar    strategies    co    dioxide    introducing    complementary    clean    redox    oxygen    chemists    model    catalysts    protocols    driving    covalent    co2    explore    synthetic    complexity    revaluation    rational    definition    stability    single    rigidity    insights    solid    evolution    grand    photocatalytic    emerged    photochemistry    activation    forces    integration    advantage    class    engineering    tunability    innovation    intricate    capture    bridge    considerable    molecular    natural    methane    photosensitizers    chemical    mimicking    sustainable    light    optimized    producing    energy   

Project "COFLeaf" data sheet

The following table provides information about the project.


Organization address
city: Munich
postcode: 80539

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙497˙125 €
 EC max contribution 1˙497˙125 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-09-01   to  2020-08-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The efficient conversion of solar energy into renewable chemical fuels has been identified as one of the grand challenges facing society today and one of the major driving forces of materials innovation. Nature’s photosynthesis producing chemical fuels through the revaluation of sunlight has inspired generations of chemists to develop platforms mimicking the natural photosynthetic process, albeit at lower levels of complexity. While artificial photosynthesis remains a considerable challenge due to the intricate interplay between materials design, photochemistry and catalysis, the spotlights – light-driven water splitting into hydrogen and oxygen and carbon dioxide reduction into methane or methanol – have emerged as viable pathways into both a clean and sustainable energy future. With this proposal, we aim at introducing a new class of polymeric photocatalysts based on covalent organic frameworks, COFs, to bridge the gap between semiconductor and molecular systems and explore rational ways to design single-site heterogeneous photocatalysts offering both chemical tunability and stability. The development of a photocatalytic model system is proposed, which will be tailored by molecular synthetic protocols and optimized by solid-state chemical procedures and crystal engineering so as to provide insights into the architectures, reactive intermediates and mechanistic steps involved in the photocatalytic process, with complementary insights from theory. We envision the integration of various molecular subsystems including photosensitizers, redox shuttles and molecular co-catalysts in a single semiconducting COF backbone. Taking advantage of the hallmarks of COFs – molecular definition and tunability, crystallinity, porosity and rigidity – we describe the design of COF systems capable of light-induced hydrogen evolution, oxygen evolution and overall water splitting, and delineate strategies to use COFs as integrated platforms for CO2 capture, activation and conversion.


year authors and title journal last update
List of publications.
2020 Patrick Alexa, Juan Manuel Lombardi, Paula Abufager, Heriberto Fabio Busnengo, Doris Grumelli, Vijay S. Vyas, Frederik Haase, Bettina V. Lotsch, Rico Gutzler, Klaus Kern
Enhancing hydrogen evolution activity of Au(111) in alkaline media through molecular engineering of a 2D polymer
published pages: , ISSN: 1433-7851, DOI: 10.1002/anie.201915855
Angewandte Chemie International Edition 2020-03-10
2019 Patrick Alexa, Christina Oligschleger, Pascal Gröger, Claudius Morchutt, Vijay Vyas, Bettina V. Lotsch, J. Christian Schön, Rico Gutzler, Klaus Kern
Short‐Range Structural Correlations in Amorphous 2D Polymers
published pages: 2340-2347, ISSN: 1439-4235, DOI: 10.1002/cphc.201900326
ChemPhysChem 20/18 2020-01-14
2019 Hendrik Schlomberg, Julia Kröger, Gökcen Savasci, Maxwell W. Terban, Sebastian Bette, Igor Moudrakovski, Viola Duppel, Filip Podjaski, Renée Siegel, Jürgen Senker, Robert E. Dinnebier, Christian Ochsenfeld, Bettina V. Lotsch
Structural Insights into Poly(Heptazine Imides): A Light Storing Carbon Nitride Material for Dark Photocatalysis
published pages: , ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.9b02199
Chemistry of Materials 2019-08-29
2018 Tanmay Banerjee, Kerstin Gottschling, Gökcen Savasci, Christian Ochsenfeld, Bettina V. Lotsch
H 2 Evolution with Covalent Organic Framework Photocatalysts
published pages: 400-409, ISSN: 2380-8195, DOI: 10.1021/acsenergylett.7b01123
ACS Energy Letters 3/2 2019-05-29
2018 Frederik Haase, Erik Troschke, Gökcen Savasci, Tanmay Banerjee, Viola Duppel, Susanne Dörfler, Martin M. J. Grundei, Asbjörn M. Burow, Christian Ochsenfeld, Stefan Kaskel & Bettina V. Lotsch
Topochemical conversion of an imine- into a thiazole-linked covalent organic framework enabling real structure analysis
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-04979-y
Nature Communications 2019-05-29
2017 Tanmay Banerjee, Frederik Haase, Gökcen Savasci, Kerstin Gottschling, Christian Ochsenfeld, Bettina V. Lotsch
Single-Site Photocatalytic H 2 Evolution from Covalent Organic Frameworks with Molecular Cobaloxime Co-Catalysts
published pages: 16228-16234, ISSN: 0002-7863, DOI: 10.1021/jacs.7b07489
Journal of the American Chemical Society 139/45 2019-05-29
2018 Linus Stegbauer, Sebastian Zech, Gökcen Savasci, Tanmay Banerjee, Filip Podjaski, Katharina Schwinghammer, Christian Ochsenfeld, Bettina V. Lotsch
Tailor-Made Photoconductive Pyrene-Based Covalent Organic Frameworks for Visible-Light Driven Hydrogen Generation
published pages: 1703278, ISSN: 1614-6832, DOI: 10.1002/aenm.201703278
Advanced Energy Materials 2019-05-29
2017 Vincent Wing-hei Lau, Daniel Klose, Hatice Kasap, Filip Podjaski, Marie-Claire Pignié, Erwin Reisner, Gunnar Jeschke, Bettina V. Lotsch
Dark Photocatalysis: Storage of Solar Energy in Carbon Nitride for Time-Delayed Hydrogen Generation
published pages: 510-514, ISSN: 1433-7851, DOI: 10.1002/anie.201608553
Angewandte Chemie International Edition 56/2 2019-05-28
2016 Hatice Kasap, Christine A. Caputo, Benjamin C. M. Martindale, Robert Godin, Vincent Wing-hei Lau, Bettina V. Lotsch, James R. Durrant, Erwin Reisner
Solar-Driven Reduction of Aqueous Protons Coupled to Selective Alcohol Oxidation with a Carbon Nitride–Molecular Ni Catalyst System
published pages: 9183-9192, ISSN: 0002-7863, DOI: 10.1021/jacs.6b04325
Journal of the American Chemical Society 138/29 2019-05-28
2016 Vijay S. Vyas, Vincent Wing-hei Lau, Bettina V. Lotsch
Soft Photocatalysis: Organic Polymers for Solar Fuel Production
published pages: 5191-5204, ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.6b01894
Chemistry of Materials 28/15 2019-05-28
2017 F. Haase, K. Gottschling, L. Stegbauer, L. S. Germann, R. Gutzler, V. Duppel, V. S. Vyas, K. Kern, R. E. Dinnebier, B. V. Lotsch
Tuning the stacking behaviour of a 2D covalent organic framework through non-covalent interactions
published pages: , ISSN: 2052-1537, DOI: 10.1039/C6QM00378H
Mater. Chem. Front. 2019-05-28
2015 Vijay S. Vyas, Frederik Haase, Linus Stegbauer, Gökcen Savasci, Filip Podjaski, Christian Ochsenfeld, Bettina V. Lotsch
A tunable azine covalent organic framework platform for visible light-induced hydrogen generation
published pages: 8508, ISSN: 2041-1723, DOI: 10.1038/ncomms9508
Nature Communications 6 2019-05-28

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