Open AccessStudy on the humidity sensitive behavior of multiwalled carbon nanotubes
Author(s) -
Zihua Wu,
Wanlu Wang,
Liao Ke-jun,
Yongtian Wang,
Hu Chen-Guo,
Fu Guang-Zong,
Wan Bu-yong,
Peng Yu
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3462
Subject(s) - materials science , humidity , carbon nanotube , chemical vapor deposition , chemical engineering , nanotube , composite material , nanotechnology , thermodynamics , physics , engineering
The humidity sensitive properties of multiwalled carbon nanotubes(MWNTs) films h ave been studied.Multiwalled carbon nanotubes were synthesized by hot filament chemical vapor deposition.Carboxyl modified and non_modified MWNTs film's tempera ture effect and humidity sensitive behavior were investigated separately.The res ults showed that carboxyl modified MWNTs films were very sensitive to temperatur e and humidity,response and restored time were much faster than that of non_modi fied MWNTs films.The origin of humidity sensitivity of MWNTs films were also discussed,and the theoretical formula was given.