TY - JOUR
T1 - CO2 Adsorption Sites in UTSA-16
T2 - Multitechnique Approach
AU - Masala, Alessio
AU - Grifasi, Francesca
AU - Atzori, Cesare
AU - Vitillo, Jenny G.
AU - Mino, Lorenzo
AU - Bonino, Francesca
AU - Chierotti, Michele R.
AU - Bordiga, Silvia
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/6/9
Y1 - 2016/6/9
N2 - The key role of K+ counterions in determining the high CO2 capacity of UTSA-16 has been highlighted thanks to a combined use of in situ infrared and 13C solid-state NMR spectroscopies performed in a controlled atmosphere at variable temperature and pressure. A second family of sites, engaged at higher temperature or at higher coverage, was identified in the organic linker. Variable temperature IR measurements of molecular hydrogen at 15 K allowed to further distinguish the K+ sites in two families, slightly different in their polarizing ability and indistinguishable on the basis of CO2 isosteric heat and by using a less sensitive probe than H2, as CO and N2.
AB - The key role of K+ counterions in determining the high CO2 capacity of UTSA-16 has been highlighted thanks to a combined use of in situ infrared and 13C solid-state NMR spectroscopies performed in a controlled atmosphere at variable temperature and pressure. A second family of sites, engaged at higher temperature or at higher coverage, was identified in the organic linker. Variable temperature IR measurements of molecular hydrogen at 15 K allowed to further distinguish the K+ sites in two families, slightly different in their polarizing ability and indistinguishable on the basis of CO2 isosteric heat and by using a less sensitive probe than H2, as CO and N2.
UR - https://www.scopus.com/pages/publications/84974717574
UR - https://www.scopus.com/pages/publications/84974717574#tab=citedBy
U2 - 10.1021/acs.jpcc.6b03333
DO - 10.1021/acs.jpcc.6b03333
M3 - Article
AN - SCOPUS:84974717574
SN - 1932-7447
VL - 120
SP - 12068
EP - 12074
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 22
ER -