Author(s): A. Politano | A. R. Marino | V. Formoso | G. Chiarello
Journal: AIP Advances
ISSN 2158-3226
Volume: 1;
Issue: 4;
Start page: 042130;
Date: 2011;
Original page
ABSTRACT
Water interaction with quasi-freestanding graphene deposited on Pt(111) has been investigated by using vibrational spectroscopy. Loss measurements show that water molecules dosed at room temperature can dissociate giving rise to C-H bonds. The formation of the C-H bonds strongly attenuates the optical phonons of the graphene sheet. On the other hand, at 100 K water has been found to adsorb only in molecular state. Present findings should be taken into account in engineering graphene-based devices which should work at atmospheric pressure and at room temperature.
Journal: AIP Advances
ISSN 2158-3226
Volume: 1;
Issue: 4;
Start page: 042130;
Date: 2011;
Original page
ABSTRACT
Water interaction with quasi-freestanding graphene deposited on Pt(111) has been investigated by using vibrational spectroscopy. Loss measurements show that water molecules dosed at room temperature can dissociate giving rise to C-H bonds. The formation of the C-H bonds strongly attenuates the optical phonons of the graphene sheet. On the other hand, at 100 K water has been found to adsorb only in molecular state. Present findings should be taken into account in engineering graphene-based devices which should work at atmospheric pressure and at room temperature.
