Progress towards a novel NO2 gas sensor based on SnO2/RGO hybrid sensors by a facial hydrothermal approach

被引：37
作者：
Sivakumar, R. [1 ]
Krishnamoorthi, K. [2 ]
Vadivel, S. [3 ]
Govindasamy, S. [1 ]
机构：
[1] Narasus Sarathy Inst Technol Poosaripatty, Dept Elect & Elect Engn, Salem 636305, Tamil Nadu, India
[2] Sona Coll Technol, Dept Elect & Elect Engn, Junction Main Rd, Salem 636005, Tamil Nadu, India
[3] Paavai Engn Coll Autonomous, Dept Phys, Namakkal 637018, Tamil Nadu, India
来源：
DIAMOND AND RELATED MATERIALS | 2021年 / 116卷
关键词：
SnO2-reduced graphene oxide; P-N junction; Hydrothermal; Chemical sensor; NO2; gas; High sensitivity; ZNO NANOSTRUCTURES; SENSING PROPERTIES; LOW-TEMPERATURE; NANOCOMPOSITE; SENSITIVITY; PERFORMANCE; AMMONIA; OXIDE; NANOCRYSTALLINE; SEMICONDUCTOR;
D O I：
10.1016/j.diamond.2021.108418
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The integration of semiconducting metal oxides and carbonaceous materials has been sufficiently shown to be an efficient method to improve the sensing properties of gas sensors. The present investigation concerns the solution-based hydrothermal production of SnO2 nanoparticles (NPs) decorated reduced graphene oxide hybrids sensors. The microstructure and elemental composition of the samples were analyzed through XRD, SEM, TEM, BET and XPS analysis. The concentration of rGO in SnO2 is varied from 0 to 5 wt%. In the meantime, a series of resistant-type gas sensors based on composite SnO2/rGO and pure SnO2 were manufactured and tested for gas sensing analysis towards NO2 and CO2. The composite sensor exhibited enhanced sensing performance towards NO2 gas such as high response (88.9), fast response (12 s) and recovery time (34 s), selectiveness and repeatability. The synergistic impact of SnO2 and rGO significant function in enhancing sensing behavior. Improvement mechanism that is responsible for the superior sensing properties of the nanocomposite is also discussed.
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页数：10
相关论文
共 49 条
[1]   Low temperature selective NO2 sensors by nanostructured fibres of ZnO [J].
Baratto, C ;
Sberveglieri, G ;
Onischuk, A ;
Caruso, B ;
di Stasio, S .
SENSORS AND ACTUATORS B-CHEMICAL, 2004, 100 (1-2) :261-265
[2]   XPS and Kelvin probe studies of SnO2/RGO nanohybrids based NO2 sensors [J].
Bhangare, Bhagyashri ;
Ramgir, Niranjan S. ;
Jagtap, Shweta ;
Debnath, A. K. ;
Muthe, K. P. ;
Terashima, Chiaki ;
Aswal, Dinesh K. ;
Gosavi, Suresh W. ;
Fujishima, Akira .
APPLIED SURFACE SCIENCE, 2019, 487 :918-929
[3]   SnO2 nanoparticles incorporated CuO nanopetals on graphene for high-performance room-temperature NO2 sensor [J].
Bo, Zheng ;
Wei, Xiu ;
Guo, Xinzheng ;
Yang, Huachao ;
Mao, Shun ;
Yan, Jianhua ;
Cen, Kefa .
CHEMICAL PHYSICS LETTERS, 2020, 750
[4]   Effect of CuO as a dopant in TiO2 on ammonia and hydrogen sulphide sensing at room temperature [J].
Chaudhari, Prapti ;
Mishra, Satyendra .
MEASUREMENT, 2016, 90 :468-474
[5]  
Chen I.C., 2002, SENSORS-BASEL, V10, P3057
[6]  
Chen S., 2013, ACS APPL MATER INTER, V5
[7]   High Sensitivity Ammonia Sensor Using a Hierarchical Polyaniline/Poly(ethylene-co-glycidyl methacrylate) Nanofibrous Composite Membrane [J].
Chen, Sheng ;
Sun, Gang .
ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (14) :6473-6477
[8]   Synthesis and properties of multipod-shaped ZnO nanorods for gas-sensor applications [J].
Gao, T ;
Wang, TH .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 80 (07) :1451-1454
[9]   Enhanced gas sensing properties to NO2 of SnO2/rGO nanocomposites synthesized by microwave-assisted gas-liquid interfacial method [J].
Gui, Yang-hai ;
Wang, Hai-yan ;
Tian, Kuan ;
Yang, Le-le ;
Guo, Hui-shi ;
Zhang, Hong-zhong ;
Fang, Shao-ming ;
Wang, Yun .
CERAMICS INTERNATIONAL, 2018, 44 (05) :4900-4907
[10]   HIGHER OXIDES OF NITROGEN - INHALATION TOXICOLOGY [J].
GUIDOTTI, TL .
ENVIRONMENTAL RESEARCH, 1978, 15 (03) :443-472
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