Preparation of mesoporous and/or macroporous SnO2-based powders and their gas-sensing properties as thick film sensors.
Preparation of mesoporous and/or macroporous SnO2-based powders and their gas-sensing properties as thick film sensors.
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DOI：
10.3390/s110201261
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Egashira M
中科院分区：
文献类型：
--
作者：
Yuan L;Hyodo T;Shimizu Y;Egashira M
制备了介孔和/或大孔SnO 2基粉末，并研究了它们作为厚膜传感器对H2和NO2的气敏性能。各种SnO 2基粉末的中孔和大孔是通过双（2-乙基己基）磺基琥珀酸钠和聚甲基丙烯酸甲酯（PMMA）微球的自组装来控制的（ca.直径800 nm）。在SnO 2基传感器中引入介孔和大孔，显著增加了传感器在空气中的电阻。SiO2和Sb 2 O 5的添加到介孔和/或大孔SnO 2被发现，以改善传感器的传感性能。发现将SiO2添加到介孔和/或大孔SnO 2中会增加空气中的传感器电阻，而将Sb 2 O 5掺杂到介孔和/或大孔SnO 2中会显着降低空气中的传感器电阻，并增加对空气中1，000 ppm H2和1 ppm NO2的响应。在所有测试的传感器中，介孔-大孔SnO 2添加1wt%SiO2和5wt%Sb2O5，这是同时与上述两种模板制备，表现出最大的H2和NO2的响应。
Mesoporous and/or macroporous SnO2-based powders have been prepared and their gas-sensing properties as thick film sensors towards H2 and NO2 have been investigated. The mesopores and macropores of various SnO2-based powders were controlled by self-assembly of sodium bis(2-ethylhexyl)sulfosuccinate and polymethyl-methacrylate (PMMA) microspheres (ca. 800 nm in diameter), respectively. The introduction of mesopores and macropores into SnO2-based sensors increased their sensor resistance in air significantly. The additions of SiO2 and Sb2O5 into mesoporous and/or macroporous SnO2 were found to improve the sensing properties of the sensors. The addition of SiO2 into mesoporous and/or macroporous SnO2 was found to increase the sensor resistance in air, whereas doping of Sb2O5 into mesoporous and/or macroporous SnO2 was found to markedly reduce the sensor resistance in air, and to increase the response to 1,000 ppm H2 as well as 1 ppm NO2 in air. Among all the sensors tested, meso-macroporous SnO2 added with 1 wt% SiO2 and 5 wt% Sb2O5, which were prepared with the above two templates simultaneously, exhibited the largest H2 and NO2 responses.
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影响因子：
8.4
作者：
Firooz, Azam Anaraki;Hyodo, Takeo;Shimizu, Yasuhiro
通讯作者：
Shimizu, Yasuhiro
影响因子：
8.4
作者：
Hyodo, T;Baba, Y;Egashira, M
通讯作者：
Egashira, M
影响因子：
3
作者：
Li, GJ;Kawi, S
通讯作者：
Kawi, S
DOI：
10.1016/0250-6874(82)80027-9
发表时间：
1983-01-01
期刊：
SENSORS AND ACTUATORS
影响因子：
--
作者：
CLIFFORD, PK;TUMA, DT
通讯作者：
TUMA, DT
影响因子：
2.8
作者：
Fukuoka, A;Araki, H;Ichikawa, M
通讯作者：
Ichikawa, M