---
_id: '13236'
abstract:
- lang: eng
text: Thermal treatment of hexaazatriphenylene-hexacarbonitrile (HAT-CN) in the
temperature range from 500 °C to 700 °C leads to precise control over the degree
of condensation{,} and thus atomic construction and porosity of the resulting
C2N-type materials. Depending on the condensation temperature of HAT-CN{,} nitrogen
contents of more than 30 at% can be reached. In general{,} these carbons show
adsorption properties which are comparable to those known for zeolites but their
pore size can be adjusted over a wider range. At condensation temperatures of
525 °C and below{,} the uptake of nitrogen gas remains negligible due to size
exclusion{,} but the internal pores are large and polarizing enough that CO2 can
still adsorb on part of the internal surface. This leads to surprisingly high
CO2 adsorption capacities and isosteric heat of adsorption of up to 52 kJ mol−1.
Theoretical calculations show that this high binding enthalpy arises from collective
stabilization effects from the nitrogen atoms in the C2N layers surrounding the
carbon atom in the CO2 molecule and from the electron acceptor properties of the
carbon atoms from C2N which are in close proximity to the oxygen atoms in CO2.
A true CO2 molecular sieving effect is achieved for the first time in such a metal-free
organic material with zeolite-like properties{,} showing an IAST CO2/N2 selectivity
of up to 121 at 298 K and a N2/CO2 ratio of 90/10 without notable changes in the
CO2 adsorption properities over 80 cycles.
author:
- first_name: Ralf
full_name: Walczak, Ralf
last_name: Walczak
- first_name: Aleksandr
full_name: Savateev, Aleksandr
last_name: Savateev
- first_name: Julian Joachim
full_name: Heske, Julian Joachim
id: '53238'
last_name: Heske
- first_name: Nadezda V.
full_name: Tarakina, Nadezda V.
last_name: Tarakina
- first_name: Sudhir
full_name: Sahoo, Sudhir
last_name: Sahoo
- first_name: Jan D.
full_name: Epping, Jan D.
last_name: Epping
- first_name: Thomas
full_name: Kühne, Thomas
id: '49079'
last_name: Kühne
- first_name: Bogdan
full_name: Kurpil, Bogdan
last_name: Kurpil
- first_name: Markus
full_name: Antonietti, Markus
last_name: Antonietti
- first_name: Martin
full_name: Oschatz, Martin
last_name: Oschatz
citation:
ama: Walczak R, Savateev A, Heske JJ, et al. Controlling the strength of interaction
between carbon dioxide and nitrogen-rich carbon materials by molecular design.
Sustainable Energy Fuels. 2019. doi:10.1039/C9SE00486F
apa: Walczak, R., Savateev, A., Heske, J. J., Tarakina, N. V., Sahoo, S., Epping,
J. D., … Oschatz, M. (2019). Controlling the strength of interaction between carbon
dioxide and nitrogen-rich carbon materials by molecular design. Sustainable
Energy Fuels. https://doi.org/10.1039/C9SE00486F
bibtex: '@article{Walczak_Savateev_Heske_Tarakina_Sahoo_Epping_Kühne_Kurpil_Antonietti_Oschatz_2019,
title={Controlling the strength of interaction between carbon dioxide and nitrogen-rich
carbon materials by molecular design}, DOI={10.1039/C9SE00486F},
journal={Sustainable Energy Fuels}, publisher={The Royal Society of Chemistry},
author={Walczak, Ralf and Savateev, Aleksandr and Heske, Julian Joachim and Tarakina,
Nadezda V. and Sahoo, Sudhir and Epping, Jan D. and Kühne, Thomas and Kurpil,
Bogdan and Antonietti, Markus and Oschatz, Martin}, year={2019} }'
chicago: Walczak, Ralf, Aleksandr Savateev, Julian Joachim Heske, Nadezda V. Tarakina,
Sudhir Sahoo, Jan D. Epping, Thomas Kühne, Bogdan Kurpil, Markus Antonietti, and
Martin Oschatz. “Controlling the Strength of Interaction between Carbon Dioxide
and Nitrogen-Rich Carbon Materials by Molecular Design.” Sustainable Energy
Fuels, 2019. https://doi.org/10.1039/C9SE00486F.
ieee: R. Walczak et al., “Controlling the strength of interaction between
carbon dioxide and nitrogen-rich carbon materials by molecular design,” Sustainable
Energy Fuels, 2019.
mla: Walczak, Ralf, et al. “Controlling the Strength of Interaction between Carbon
Dioxide and Nitrogen-Rich Carbon Materials by Molecular Design.” Sustainable
Energy Fuels, The Royal Society of Chemistry, 2019, doi:10.1039/C9SE00486F.
short: R. Walczak, A. Savateev, J.J. Heske, N.V. Tarakina, S. Sahoo, J.D. Epping,
T. Kühne, B. Kurpil, M. Antonietti, M. Oschatz, Sustainable Energy Fuels (2019).
date_created: 2019-09-16T10:39:25Z
date_updated: 2022-01-06T06:51:31Z
department:
- _id: '304'
doi: 10.1039/C9SE00486F
language:
- iso: eng
page: '-'
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Sustainable Energy Fuels
publication_status: published
publisher: The Royal Society of Chemistry
status: public
title: Controlling the strength of interaction between carbon dioxide and nitrogen-rich
carbon materials by molecular design
type: journal_article
user_id: '71692'
year: '2019'
...