Covalent triazine framework/carbon nanotube hybrids enabling selective reduction of CO2 to CO at low overpotential

Andreas Laemont; Sara Abednatanzi; Parviz Gohari Derakshandeh; Florian Verbruggen; Erika Fiset; Qing Qin; Kevin Van Daele; Maria Meledina; Johannes Schmidt; Martin Oschatz; Pascal Van Der Voort; Korneel Rabaey; Markus Antonietti; Tom Breugelmans; Karen Leus

doi:10.1039/D0GC00090F

Covalent triazine framework/carbon nanotube hybrids enabling selective reduction of CO₂ to CO at low overpotential†

Andreas Laemont,^a Sara Abednatanzi,

^a Parviz Gohari Derakshandeh,

^a Florian Verbruggen,

^b Erika Fiset,

^b Qing Qin,^c Kevin Van Daele,

^de Maria Meledina,^fg Johannes Schmidt,^h Martin Oschatz,

^ci Pascal Van Der Voort,

^a Korneel Rabaey,

^b Markus Antonietti,

^c Tom Breugelmans

^de and Karen Leus

*^a

Author affiliations

* Corresponding authors

^a COMOC – Center for Ordered Materials, Organometallics and Catalysis, Department of Chemistry, Ghent University, 9000 Ghent, Belgium
E-mail: karen.leus@ugent.be

^b CMET – Center for Microbial Ecology and Technology, Department of Biotechnology, Ghent University, 9000 Ghent, Belgium

^c Max Planck Institute of Colloids and Interfaces, Colloid Chemistry, Research Campus Golm, Am Mühlenberg 1, 14476 Potsdam, Germany

^d ELCAT – Applied Electrochemistry & Catalysis, Faculty of Applied Engineering, University of Antwerp, 2610 Antwerp, Belgium

^e Separation and Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol 2400, Belgium

^f RWTH Aachen University, Central Facility for Electron Microscopy, D-52074 Aachen, Germany

^g Forschungszentrum Jülich GmbH, Ernst Ruska-Centre (ER-C 2), D-52425 Jülich, Germany

^h Institut für Chemie − Funktionsmaterialien, Technische Universität Berlin, Hardenbergstraße 40, 10623 Berlin, Germany

ⁱ Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam, Germany

Abstract

Electrochemical reduction of CO₂ provides a way to generate base chemicals from an abundant C1-source under mild conditions, whilst at the same time mitigating CO₂ emissions. In this work, a novel class of tailorable, porous electrocatalysts for this process is proposed. Covalent triazine frameworks (CTFs) are grown in situ onto functionalized multiwalled carbon nanotubes. Hydroxyl groups decorating the surface of the multiwalled carbon nanotubes facilitate intimate contact between the carbon nanotubes and CTF, thus promoting efficient electron transfer. The novel hybrid materials generate CO with a faradaic efficiency up to 81% at an overpotential of 380 mV. The selectivity of the electrocatalysts could be linked to the amount of nitrogen present within the framework.

This article is part of the themed collection: International Symposium on Green Chemistry 2019

Green Chemistry

Covalent triazine framework/carbon nanotube hybrids enabling selective reduction of CO₂ to CO at low overpotential†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Covalent triazine framework/carbon nanotube hybrids enabling selective reduction of CO₂ to CO at low overpotential

Social activity

Search articles by author

Spotlight

Advertisements

Green Chemistry