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Preparation of porous sea-urchin-like CuO/ZnO composite nanostructure consisting of numerous nanowires with improved gas-sensing performance 被引量:1

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摘要 A sea-urchin-like CuO/ZnO porous nanostructure is obtained via a simple solution method followed by a calcination process.There are abundant pores among the resulting nanowires due to the thermal decomposition of copper-zinc hydroxide carbonate.The specific surface area of the as-prepared CuO/ZnO sample is determined as 31.3 m^(2)·g^(-1).The gas-sensing performance of the sea-urchin-like CuO/ZnO sensor is studied by exposure to volatile organic compound(VOC)vapors.With contrast to a pure porous sea-urchin-like ZnO sensor,the sea-urchin-like CuO/ZnO sensor shows superior gas-sensing behavior for acetone,formaldehyde,methanol,toluene,isopropanol and ethanol.It exhibits a high response of 52.6-100 ppm acetone vapor,with short response/recovery time.This superior sensing behavior is mainly ascribed to the porous nanowireassembled structure with abundant p-n heterojunctions.
出处 《Frontiers of Materials Science》 SCIE CSCD 2022年第1期71-85,共15页 材料学前沿(英文版)
基金 This study was funded by grant Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application(LFCCMCA-09) Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources(LCECSC-01) Natural Science Research Project for Universities in Anhui Province(KJ2019A0480).
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