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Interaction of NH 3 with the reduced surface of graphite fluoride C 2 F
Author(s) -
Okotrub A. V.,
Babin K. S.,
Gusel'nikov A. V.,
Asanov I. P.,
Bulusheva L. G.
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201000189
Subject(s) - graphite , graphene , fluoride , hydrazine (antidepressant) , layer (electronics) , molecule , materials science , surface layer , inorganic chemistry , analytical chemistry (journal) , chemistry , nanotechnology , organic chemistry , composite material , chromatography
A treatment of graphite fluoride C 2 F with hydrazine vapor resulted in development of conductive surface layer. Exposure of the reduced C 2 F sample to gaseous NH 3 (∼5% in ambient air) was shown to lead to rapid increase in layer resistance. Relative change of resistance averaged over three cycles is ∼14%. Only air purging at room temperature is required to recover the sensor. Quantum chemical calculations showed that NH 3 molecules should interact more readily with partially fluorinated graphitic layer than with graphene.Side view of NH 3 molecule on the top of reduced surface of fluorinated graphene.