---
res:
  bibo_abstract:
  - 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.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Ralf
      foaf_name: Walczak, Ralf
      foaf_surname: Walczak
  - foaf_Person:
      foaf_givenName: Aleksandr
      foaf_name: Savateev, Aleksandr
      foaf_surname: Savateev
  - foaf_Person:
      foaf_givenName: Julian Joachim
      foaf_name: Heske, Julian Joachim
      foaf_surname: Heske
      foaf_workInfoHomepage: http://www.librecat.org/personId=53238
  - foaf_Person:
      foaf_givenName: Nadezda V.
      foaf_name: Tarakina, Nadezda V.
      foaf_surname: Tarakina
  - foaf_Person:
      foaf_givenName: Sudhir
      foaf_name: Sahoo, Sudhir
      foaf_surname: Sahoo
  - foaf_Person:
      foaf_givenName: Jan D.
      foaf_name: Epping, Jan D.
      foaf_surname: Epping
  - foaf_Person:
      foaf_givenName: Thomas
      foaf_name: Kühne, Thomas
      foaf_surname: Kühne
      foaf_workInfoHomepage: http://www.librecat.org/personId=49079
  - foaf_Person:
      foaf_givenName: Bogdan
      foaf_name: Kurpil, Bogdan
      foaf_surname: Kurpil
  - foaf_Person:
      foaf_givenName: Markus
      foaf_name: Antonietti, Markus
      foaf_surname: Antonietti
  - foaf_Person:
      foaf_givenName: Martin
      foaf_name: Oschatz, Martin
      foaf_surname: Oschatz
  bibo_doi: 10.1039/C9SE00486F
  dct_date: 2019^xs_gYear
  dct_language: eng
  dct_publisher: The Royal Society of Chemistry@
  dct_title: Controlling the strength of interaction between carbon dioxide and nitrogen-rich
    carbon materials by molecular design@
...