Open AccessEnhanced acetone sensing properties of Eu‐In 2 O 3 nanotubes with bumps
Author(s) -
Lian Hongwei,
Wang Guoguang,
Yue He,
Liu Li,
Guo Xuexin,
Wang Xuesong
Publication year - 2016
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0235
Subject(s) - materials science , acetone , nanotechnology , carbon nanotube , chemistry , organic chemistry
Pure and Eu‐In 2 O 3 nanotubes with bumps were synthesised via electrospinning and calcination method. The crystal structure and morphologies of the as‐prepared materials were characterised by X‐ray diffraction (XRD), energy‐dispersive spectrometer and scanning electron microscopy (SEM), respectively. The SEM images displayed the unique nanotube structure which is constructed with bumps on the nanotube surface. Tests on gas sensing properties validated that the response of Eu‐In 2 O 3 nanotube sensors to 20 ppm acetone was up to 20 at 240°C which was 3.4 times larger than that of the pure (5.8) and the response and recovery times were 3 and 90 s, respectively. The sensor could detect 200 ppb acetone with a response of 2. It showed excellent selectivity to acetone and sorted acetone from ethanol successfully which has similar properties with acetone.