TY - JOUR
T1 - Adsorption kinetics and dynamics of CO2 on Ru(0001) supported graphene oxide
AU - Sivapragasam, Nilushni
AU - Nayakasinghe, Mindika T.
AU - Burghaus, Uwe
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/12/15
Y1 - 2016/12/15
N2 - Adsorption kinetics and dynamics of CO2 on Ru(0001), graphene grown on Ru, and graphene oxide (GO) on Ru were studied. Graphene and GO were made in ultrahigh vacuum by benzene decomposition and subsequent atomic oxygen adsorption, respectively. The samples were characterized by AES (Auger electron spectroscopy) and XPS (X-ray photoelectron spectroscopy). As determined by TDS (thermal desorption spectroscopy), CO2 physisorbs molecularly at ∼85 K on Ru and GO, but not on graphene. Binding energies amount to ∼26 kJ/mol and were slightly enhanced on GO as compared with Ru. Similarly, adsorption probabilities, as determined by molecular beam scattering, are larger on GO than on Ru.
AB - Adsorption kinetics and dynamics of CO2 on Ru(0001), graphene grown on Ru, and graphene oxide (GO) on Ru were studied. Graphene and GO were made in ultrahigh vacuum by benzene decomposition and subsequent atomic oxygen adsorption, respectively. The samples were characterized by AES (Auger electron spectroscopy) and XPS (X-ray photoelectron spectroscopy). As determined by TDS (thermal desorption spectroscopy), CO2 physisorbs molecularly at ∼85 K on Ru and GO, but not on graphene. Binding energies amount to ∼26 kJ/mol and were slightly enhanced on GO as compared with Ru. Similarly, adsorption probabilities, as determined by molecular beam scattering, are larger on GO than on Ru.
UR - https://www.scopus.com/pages/publications/85040577286
U2 - 10.1021/acs.jpcc.6b09573
DO - 10.1021/acs.jpcc.6b09573
M3 - Article
AN - SCOPUS:85040577286
SN - 1932-7447
VL - 120
SP - 28049
EP - 28056
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 49
ER -