Title Self-template derived CuO nanowires assembled microspheres and its gas sensing properties
Authors 黄新堂
Issue Date 2017
Publisher Sensors and Actuators B: Chemical(2020年影响因子:7.460)
Keywords CuO
Fast response/recovery
Nanowire
p-type gas sensor
Through pore
Abstract Development of high-performance p-type semiconductor gas sensors especially the fast response/recovery speed and high response based on inexpensive non-noble metal oxides without doping or noble metal decoration for the practical applications of gas sensor are highly desirable. In this work, the rapid room-temperature synthesis of innovative and unique parallel copper oxide nanowires assembled microspheres (CuO NMs) with excellent gas sensing property is reported. The morphological characteristics, surface area, porosity, chemical composition and the chemical conversion process are studied carefully. As a result, the CuO NMs exhibit a relatively high gas response, especially the fast response and recovery time to 100 ppm n-propanol vapor at relatively low operating temperature of 190 °C, respectively. This new rapid self-template derived functional nanomaterials will offer a promising platform for highly sensitive and real-time monitoring p-type gas sensors
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