---
_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.
    <i>Sustainable Energy Fuels</i>. 2019. doi:<a href="https://doi.org/10.1039/C9SE00486F">10.1039/C9SE00486F</a>
  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. <i>Sustainable
    Energy Fuels</i>. <a href="https://doi.org/10.1039/C9SE00486F">https://doi.org/10.1039/C9SE00486F</a>
  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={<a href="https://doi.org/10.1039/C9SE00486F">10.1039/C9SE00486F</a>},
    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.” <i>Sustainable Energy
    Fuels</i>, 2019. <a href="https://doi.org/10.1039/C9SE00486F">https://doi.org/10.1039/C9SE00486F</a>.
  ieee: R. Walczak <i>et al.</i>, “Controlling the strength of interaction between
    carbon dioxide and nitrogen-rich carbon materials by molecular design,” <i>Sustainable
    Energy Fuels</i>, 2019.
  mla: Walczak, Ralf, et al. “Controlling the Strength of Interaction between Carbon
    Dioxide and Nitrogen-Rich Carbon Materials by Molecular Design.” <i>Sustainable
    Energy Fuels</i>, The Royal Society of Chemistry, 2019, doi:<a href="https://doi.org/10.1039/C9SE00486F">10.1039/C9SE00486F</a>.
  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'
...