Acetone Sensing Properties of a Gas Sensor Composed of Carbon Nanotubes Doped With Iron Oxide Nanopowder

被引：20
作者：
Tan, Qiulin [1 ,2 ]
Fang, Jiahua [1 ,2 ]
Liu, Wenyi [1 ,2 ]
Xiong, Jijun [1 ,2 ]
Zhang, Wendong [1 ,2 ]
机构：
[1] North Univ China, Minist Educ, Key Lab Instrumentat Sci & Dynam Measurement, Taiyuan 030051, Peoples R China
[2] North Univ China, Sci & Technol Elect Test & Measurement Lab, Taiyuan 030051, Peoples R China
来源：
SENSORS | 2015年 / 15卷 / 11期
基金：
中国国家自然科学基金;
关键词：
carbon nanotubes; Fe2O3; gas sensor; acetone; SOLID-STATE SYNTHESIS; HYDROTHERMAL SYNTHESIS; ALPHA-FE2O3; NANOTUBES; ROOM-TEMPERATURE; DIELECTROPHORESIS; ETHANOL; NANOCOMPOSITES; NANOSTRUCTURE; NANOPARTICLES; SENSITIVITY;
D O I：
10.3390/s151128502
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Iron oxide (Fe2O3) nanopowder was prepared by a precipitation method and then mixed with different proportions of carbon nanotubes. The composite materials were characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy. A fabricated heater-type gas sensor was compared with a pure Fe2O3 gas sensor under the influence of acetone. The effects of the amount of doping, the sintering temperature, and the operating temperature on the response of the sensor and the response recovery time were analyzed. Experiments show that doping of carbon nanotubes with iron oxide effectively improves the response of the resulting gas sensors to acetone gas. It also reduces the operating temperature and shortens the response recovery time of the sensor. The response of the sensor in an acetone gas concentration of 80 ppm was enhanced, with good repeatability.
引用
收藏
页码：28502 / 28512
页数：11
相关论文
共 25 条
  • [1] Enhanced sensitivity of a gas sensor incorporating single-walled carbon nanotube-polypyrrole nanocomposites
    An, KH
    Jeong, SY
    Hwang, HR
    Lee, YH
    [J]. ADVANCED MATERIALS, 2004, 16 (12) : 1005 - +
  • [2] Low-heating solid-state synthesis and excellent gas-sensing properties of α-Fe2O3 nanoparticles
    Cao, Yali
    Luo, Haiyang
    Jia, Dianzeng
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2013, 176 : 618 - 624
  • [3] Selective gas detection using a carbon nanotube sensor
    Chopra, S
    McGuire, K
    Gothard, N
    Rao, AM
    Pham, A
    [J]. APPLIED PHYSICS LETTERS, 2003, 83 (11) : 2280 - 2282
  • [4] Iron oxide and oxygen plasma functionalized multi-walled carbon nanotubes for the discrimination of volatile organic compounds
    Clement, P.
    Hafaiedh, I.
    Parra, E. J.
    Thamri, A.
    Guillot, J.
    Abdelghani, A.
    Llobet, E.
    [J]. CARBON, 2014, 78 : 510 - 520
  • [5] Room-temperature solid state synthesis of ZnO/α-Fe2O3 hierarchical nanostructures and their enhanced gas-sensing properties
    Huang, Limei
    Fan, Huiqing
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2012, 171 : 1257 - 1263
  • [6] ZnO nanobelt/nanowire Schottky diodes formed by dielectrophoresis alignment across Au electrodes
    Lao, CS
    Liu, J
    Gao, PX
    Zhang, LY
    Davidovic, D
    Tummala, R
    Wang, ZL
    [J]. NANO LETTERS, 2006, 6 (02) : 263 - 266
  • [7] Porous spheres-like ZnO nanostructure as sensitive gas sensors for acetone detection
    Li, X. B.
    Ma, S. Y.
    Li, F. M.
    Chen, Y.
    Zhang, Q. Q.
    Yang, X. H.
    Wang, C. Y.
    Zhu, J.
    [J]. MATERIALS LETTERS, 2013, 100 : 119 - 123
  • [8] Enhancement of NH3 Gas Sensitivity at Room Temperature by Carbon Nanotube-Based Sensor Coated with Co Nanoparticles
    Lich Quang Nguyen
    Pho Quoc Phan
    Huyen Ngoc Duong
    Chien Duc Nguyen
    Lam Huu Nguyen
    [J]. SENSORS, 2013, 13 (02): : 1754 - 1762
  • [9] High sensing properties of Ce-doped α-Fe2O3 nanotubes to acetone
    Liu, Changbai
    Shan, Hao
    Liu, Li
    Li, Shouchun
    Li, Haiying
    [J]. CERAMICS INTERNATIONAL, 2014, 40 (01) : 2395 - 2399
  • [10] Liu L., 2013, Chinese Physics Letters, V30, DOI [10.1088/0256-307x/30/2/020701, DOI 10.1088/0256-307X/30/2/020701]
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