Ying Qian , Jie Zou , Xiaoqing Jiang , Jie Wang , Juan Zhou , Chu Cheng , Xin Zhang , Wenming He , Qinghui Jin , Jiawen Jian
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引用次数: 0
Abstract
Yttria-stabilized zirconia (YSZ)-based amperometric humidity sensors are highly promising for in situ detection of high-temperature flue ducts due to their excellent stability and durability under extreme conditions. However, selectivity remains challenging due to the co-electrolysis of H2O and CO2, as these compounds have similar electrolysis voltages. In this study, LaFeO3 is proposed as a sensing electrode to reduce CO2 electrolysis and improve selectivity in amperometric humidity sensors. Analysis indicates that the improved selectivity is likely due to LaFeO3’s lower electrochemical activity. Furthermore, the proposed sensor exhibits good repeatability and acceptable long-term stability for high-temperature humidity detection.
期刊介绍：
Sensors & Actuators, B: Chemical is an international journal focused on the research and development of chemical transducers. It covers chemical sensors and biosensors, chemical actuators, and analytical microsystems. The journal is interdisciplinary, aiming to publish original works showcasing substantial advancements beyond the current state of the art in these fields, with practical applicability to solving meaningful analytical problems. Review articles are accepted by invitation from an Editor of the journal.
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