The behaviour of tin dioxide sensors in exhaust environments at low and intermediate temperatures
The behaviour of tin dioxide sensors in exhaust environments at low and intermediate temperatures
复制标题
二氧化锡传感器在低温和中温排气环境中的行为
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
G. Coles
中科院分区：
文献类型：
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作者：
P. Eastwood;T. Claypole;J. Watson;G. Coles
氧化锡在固态气体传感器中已经使用了很长时间，它在环境大气中的一般用途与传统上在排气环境中使用的其他一些金属氧化物形成了对比。电子转移机制被认为在前者中占主导地位，而氧空位的影响更常被用来解释后者的行为。这种差异很大程度上是由于各自的应用温度造成的。一些基于二氧化锡的传感器在废气流中与两种传统氧化物（铌和二氧化钛）一起进行测试，以确定它们在二氧化锡传感器通常工作的温度下指示空气：燃料比（AFR）的适用性。
Tin oxide has been employed for a long time in solid-state gas sensors and their general purpose usage in the ambient atmosphere is contrasted with that of some other metal oxides conventionally employed in the exhaust environment. Electron transfer mechanisms are thought to be predominant in the former, whilst the effect of oxygen vacancies is more often invoked as an explanation of behaviour in the latter. This difference has arisen largely as a result of the respective application temperatures. Some tin dioxide-based sensors are tested in an exhaust stream alongside two conventional oxides (niobia and titania), in order to determine their suitability for indicating air:fuel ratio (AFR) at the temperatures at which tin dioxide sensors are commonly operated.