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sp-Carbon Incorporated Conductive Metal-Organic Framework as Photocathode for Photoelectrochemical Hydrogen Generation
Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Fibre Technology.ORCID iD: 0000-0003-2221-2285
Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
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2022 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 61, no 39Article in journal (Refereed) Published
Abstract [en]

Metal-organic frameworks (MOFs) have attracted increasing interest for broad applications in catalysis and gas separation due to their high porosity. However, the insulating feature and the limited active sites hindered MOFs as photocathode active materials for application in photoelectrocatalytic hydrogen generation. Herein, we develop a layered conductive two-dimensional conjugated MOF (2D c-MOF) comprising sp-carbon active sites based on arylene-ethynylene macrocycle ligand via CuO4 linking, named as Cu3HHAE2. This sp-carbon 2D c-MOF displays apparent semiconducting behavior and broad light absorption till the near-infrared band (1600 nm). Due to the abundant acetylene units, the Cu3HHAE2 could act as the first case of MOF photocathode for photoelectrochemical (PEC) hydrogen generation and presents a record hydrogen-evolution photocurrent density of ≈260 μA cm−2 at 0 V vs. reversible hydrogen electrode among the structurally-defined cocatalyst-free organic photocathodes.

Place, publisher, year, edition, pages
Wiley , 2022. Vol. 61, no 39
Keywords [en]
Conductive 2D MOFs, Hydrogen Generation, Photocathode, Photoelectrocatalysis, sp-Carbon
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-335781DOI: 10.1002/anie.202208163ISI: 000843769900001PubMedID: 35903982Scopus ID: 2-s2.0-85136518312OAI: oai:DiVA.org:kth-335781DiVA, id: diva2:1795456
Note

QC 20230908

Available from: 2023-09-08 Created: 2023-09-08 Last updated: 2023-09-08Bibliographically approved

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Li, Jian

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