Effects of catalytic combustion behavior and adsorption/desorption properties on ethanol-sensing characteristics of adsorption/combustion-type gas sensors
Effects of catalytic combustion behavior and adsorption/desorption properties on ethanol-sensing characteristics of adsorption/combustion-type gas sensors
复制标题
催化燃烧行为和吸附/解吸特性对吸附/燃烧型气体传感器乙醇传感特性的影响
DOI:
10.1080/21870764.2021.1933836
复制
发表时间:
2021
影响因子:
2.3
通讯作者:
and Yasuhiro Shimizu
中科院分区:
文献类型:
--
作者:
Takeo Hyodo;Takeru Hiura;Kazunori Nagae;Taro Ueda;and Yasuhiro Shimizu
Adsorption/combustion-type gas sensors, subspecies of catalytic combustion-type gas sensors, show large dynamic responses to volatile organic compounds (VOCs) under the operation with a mode of pulsed temperature heating, because of the flash catalytic combustion of target VOCs adsorbed on the gas-sensing films. Catalytic combustion behavior of ethanol over γ-Al2O3powders loaded with and without 1 wt% Pt and/or 10 wt% metal oxide (MO: CeO2or Bi2O3) and their adsorption/desorption properties of ethanol (adsorption temperature: 150°C) were investigated, and then the ethanol-sensing characteristics of the sensors utilizing the gas-sensing materials (low and high temperatures under dynamic operation: 150°C and 450°C, respectively) have been discussed on the basis of the findings on both their catalytic combustion behavior and adsorption/desorption properties. Especially, the co-loading of Pt with CeO2onto γ-Al2O3was the most effective in enhancing the dynamic response, because the relatively small amounts of various compounds that were adsorbed on the surface at 150°C efficiently oxidized at the initial stage of the pulse-driven heating to form CO2. The effects of low and high temperatures under the pulse-heating operation on the ethanol-sensing properties of the sensor utilizing γ-Al2O3co-loaded with Pt and CeO2were also clarified on the basis of the above findings.
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DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
A. Hosoya;S. Tamura;and N. Imanaka
通讯作者:
and N. Imanaka
影响因子:
4.2
作者:
Yesim Gucbilmez and;T. Dogu;S. Balci
通讯作者:
Yesim Gucbilmez and;T. Dogu;S. Balci
影响因子:
8.4
作者:
T. Hyodo;Yasunari Yuzuriha;O. Nakagoe;Takahiko Sasahara;S. Tanabe;Y. Shimizu
通讯作者:
Y. Shimizu
DOI:
--
发表时间:
2008
期刊:
--
影响因子:
--
作者:
兵頭 健生;稗田 耕士;笹原 隆彦
通讯作者:
笹原 隆彦
DOI:
10.1002/chin.201503246
发表时间:
2015
期刊:
ChemInform
影响因子:
--
作者:
R. Rousseau;D. Dixon;B. D. Kay;Z. Dohnálek
通讯作者:
Z. Dohnálek