Ag decorated SnO2 nanoparticles to enhance formaldehyde sensing properties

2019 ◽  
Vol 124 ◽  
pp. 36-43 ◽  
Author(s):  
Dan Liu ◽  
Junli Pan ◽  
Jianghong Tang ◽  
Weiqiao Liu ◽  
Shouli Bai ◽  
...  
2010 ◽  
Vol 8 (2) ◽  
pp. 238-242 ◽  
Author(s):  
Ting Chen ◽  
Qiuying Mu ◽  
Zhenlai Zhou ◽  
Yude Wang

2018 ◽  
Vol 739 ◽  
pp. 260-269 ◽  
Author(s):  
Xiaoguang San ◽  
Ming Li ◽  
Dongyu Liu ◽  
Guosheng Wang ◽  
Yanbai Shen ◽  
...  

2016 ◽  
Vol 658 ◽  
pp. 319-323 ◽  
Author(s):  
Xuesong Wang ◽  
Jinbao Zhang ◽  
Yue He ◽  
Lianyuan Wang ◽  
Li Liu ◽  
...  

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 351 ◽  
Author(s):  
Dongping Xue ◽  
Junjun Wang ◽  
Yan Wang ◽  
Guang Sun ◽  
Jianliang Cao ◽  
...  

Methane detection is extremely difficult, especially at low temperatures, due to its high chemical stability. Here, WO3 nanosheets loaded with SnO2 nanoparticles with a particle size of about 2 nm were prepared by simple impregnation and subsequent calcination using SnO2 and WO3·H2O as precursors. The response of SnO2-loaded WO3 nanosheet composites to methane is about 1.4 times higher than that of pure WO3 at the low optimum operating temperature (90 °C). Satisfying repeatability and long-term stability are ensured. The dominant exposed (200) crystal plane of WO3 nanosheets has a good balance between easy oxygen chemisorption and high reactivity at the dangling bonds of W atoms, beneficial for gas-sensing properties. Moreover, the formation of a n–n type heterojunction at the SnO2-WO3 interface and additionally the increase of specific surface area and defect density via SnO2 loading enhance the response further. Therefore, the SnO2-WO3 composite is promising for the development of sensor devices to methane.


Sensors ◽  
2016 ◽  
Vol 16 (8) ◽  
pp. 1283 ◽  
Author(s):  
Tangirala Karthik ◽  
María Olvera ◽  
Arturo Maldonado ◽  
Heberto Gómez Pozos

2017 ◽  
Vol 250 ◽  
pp. 533-542 ◽  
Author(s):  
Ding Wang ◽  
Minglu Zhang ◽  
Zhenlu Chen ◽  
Huijun Li ◽  
Aiying Chen ◽  
...  

Small ◽  
2011 ◽  
Vol 7 (5) ◽  
pp. 578-582 ◽  
Author(s):  
Dan Mao ◽  
Jianxi Yao ◽  
Xiaoyong Lai ◽  
Mei Yang ◽  
Jiang Du ◽  
...  

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