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

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Qin,  Qing
Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Oschatz,  Martin
Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Antonietti,  Markus
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Laemont, A., Abednatanzi, S., Derakshandeh, P. G., Verbruggen, F., Fiset, E., Qin, Q., et al. (2020). Covalent triazine framework/carbon nanotube hybrids enabling selective reduction of CO2 to CO at low overpotential. Green Chemistry, 22(10), 3095-3103. doi:10.1039/D0GC00090F.


Cite as: https://hdl.handle.net/21.11116/0000-0006-968B-4
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.