Fe2O3 nanowires for thermoelectric nitrogen dioxide gas sensor

AIP Advances - Tập 8 Số 12 - 2018
Jin Yang Lin1,2,3, A. J. Zhang4,2,5, S. H. Huang1,6,3
12Mountain Area Research Institute of Hebei Province, Agricultural University of Hebei, Baoding, Hebei 071000, China
23Research Center for Microelectronics Technology in Fujian University of Technology, Fujian University of Technology, Fuzhou, Fujian 350108, China
3School of Information Science and Engineering, Fujian University of Technology 1 , Fuzhou, Fujian 350108, China
41School of Information Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350108, China
5Mountain Area Research Institute of Hebei Province, Agricultural University of Hebei 2 , Baoding, Hebei 071000, China
6Research Center for Microelectronics Technology in Fujian University of Technology, Fujian University of Technology 3 , Fuzhou, Fujian 350108, China

Tóm tắt

A thermoelectric nitrogen dioxide gas sensor developed based on Fe2O3 nanowires is capable of outputting DC voltages of tens of millivolts, which facilitates signal amplification and processing. In this paper, the Fe2O3 nanowires were synthesized in a horizontal electrical furnace under air pressure at 600°C for 8 h. SEM and XRD techniques as well as gas sensing performance of prepared sensors towards NO2 gas were studied. The gas sensing studies demonstrate that, The voltage signal, corresponding to the 10 ppm of NO2 gas was 17.9 mV, the response time and the recovery time were 23 s and 17 s, respectively, when the temperature difference was set at 120°C. Furthermore, the plausible response mechanism of the thermoelectric gas sensor based on Fe2O3 was discussed that demonstrates a feasible method for nitrogen dioxide detection.

Từ khóa


Tài liệu tham khảo

2014, The Journal of Physical Chemistry Letters, 5, 2675, 10.1021/jz501188k

2017, npj 2D Materials and Applications, 1, 36, 10.1038/s41699-017-0036-0

2017, International Journal of Electrochemical Science, 12, 6465, 10.20964/2017.07.27

2015, Nano-Micro Letters, 7, 97, 10.1007/s40820-014-0023-3

2006, The Journal of Physical Chemistry B, 110, 17806, 10.1021/jp0633906

2008, Chemistry of Materials, 20, 3803, 10.1021/cm800144q

2008, Materials Letters, 62, 2664, 10.1016/j.matlet.2008.01.008

2011, Materials For Sustainable Energy: A Collection of Peer-Reviewed Research and Review Articles from Nature Publishing Group, 148

2014, Materials Science in Semiconductor Processing, 17, 67, 10.1016/j.mssp.2013.08.016

2005, The Journal of Physical Chemistry B, 109, 215, 10.1021/jp0461448

2015, Materials Letters, 152, 189, 10.1016/j.matlet.2015.03.112

2016, Applied Physics A, 122, 801, 10.1007/s00339-016-0330-2

2016, Journal of Materials Science: Materials in Electronics, 27, 3109, 10.1007/s10854-015-4200-z

2003, Sensors and Actuators B: Chemical, 93, 304, 10.1016/s0925-4005(03)00225-9

1996, Sensors and Actuators B: Chemical, 34, 524, 10.1016/s0925-4005(97)80022-6

1986, Sensors and Actuators, 10, 321, 10.1016/0250-6874(86)80053-1

1985, Sensors and Actuators, 8, 251, 10.1016/0250-6874(85)85008-3

1968, Philips Research Reports, 23, 131

2004, Sensors and Actuators B: Chemical, 97, 344, 10.1016/j.snb.2003.08.029

2007, IEEE Sensors Journal, 7, 1490, 10.1109/jsen.2007.906887

2011, Chemistry of Materials, 23, 3255, 10.1021/cm200397g

2008, The Journal of Physical Chemistry C, 112, 10784, 10.1021/jp802968a

2014, The Journal of Physical Chemistry C, 118, 11813, 10.1021/jp5032288

2013, Ceramics International, 39, 6453, 10.1016/j.ceramint.2013.01.074

Thông tin
Thông tin xuất bản

AIP Advances

Tập 8 Số 12

Thông tin tác giả