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Enhanced gas-sensing performance of Au-modified ZnO nanoparticles synthesized using bamboo cellulose as a template

Yan Li
Yan Li
, 
Fang-Xian Zhao
Fang-Xian Zhao
 and 
Xiao-Xue Lian
Xiao-Xue Lian
   | Dec 17, 2016
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Published Online: Dec 17, 2016
Page range: 708 - 714
Received: Oct 29, 2015
Accepted: Sep 11, 2016
DOI: https://doi.org/10.1515/msp-2016-0107
Keywords
© 2016 Wroclaw University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schematic diagram of a gas sensor based on the prepared nanoparticles.
Schematic diagram of a gas sensor based on the prepared nanoparticles.

Schematic diagram of the gas sensor testing measurement system.
Schematic diagram of the gas sensor testing measurement system.

XRD patterns of Au/ZnO NPs modified with different Au-contents (Au/Zn at.%).
XRD patterns of Au/ZnO NPs modified with different Au-contents (Au/Zn at.%).

Overview images of Au-ZnO synthesized using bamboo cellulose template (a) FE-SEM images of Au-ZnO NPs modified with different Au-contents of 0 % (b), 1% (c), 3% (d), 5% (e) and 7% (f).
Overview images of Au-ZnO synthesized using bamboo cellulose template (a) FE-SEM images of Au-ZnO NPs modified with different Au-contents of 0 % (b), 1% (c), 3% (d), 5% (e) and 7% (f).

EDS pattern of the Au(7 at.%)/ZnO NPs.
EDS pattern of the Au(7 at.%)/ZnO NPs.

Responses (R) of ZnO and Au/ZnO NPs to different gases with a concentration of 100 ppm at 240 °C.
Responses (R) of ZnO and Au/ZnO NPs to different gases with a concentration of 100 ppm at 240 °C.

Responses (R) of Au/ZnO modified with different Au-content versus working temperature (T).
Responses (R) of Au/ZnO modified with different Au-content versus working temperature (T).

Responses (R) of Au/ZnO modified with different Au-content versus ethanol concentration (C); the inset shows the resistance related to response and recovery time.
Responses (R) of Au/ZnO modified with different Au-content versus ethanol concentration (C); the inset shows the resistance related to response and recovery time.

Gas-sensing cycle test of Au(7 at.%)/ZnO to 100 ppm ethanol at 240 °C.
Gas-sensing cycle test of Au(7 at.%)/ZnO to 100 ppm ethanol at 240 °C.
eISSN:
2083-134X
Language:
English
Publication timeframe:
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Journal Subjects:
Materials Sciences, other, Nanomaterials, Functional and Smart Materials, Materials Characterization and Properties
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