【摘 要】
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Metal sulfide nanomaterials have attracted great interest because of their excellent properties and promising applications in sensing,energy harvesting,magnetic
【机 构】
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School of Electronics and Information, Qingdao University,Qingdao 266071, China;Jiangsu Key Laborato
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Metal sulfide nanomaterials have attracted great interest because of their excellent properties and promising applications in sensing,energy harvesting,magnetic and optoelectronic devices,especially their well-aligned crys-talline nanostructures are highly desirable for the enhanced performance and novel applications.In this study,the cobalt monosulfide (CoS) nanofibers with uniform shape and good crystallinity were firstly obtained via electro-spinning and atmospheric calcination routes under con-trollable conditions.It was found that the CoS nanofibers exhibited ethanol sensing properties at the optimum working temperature of 200 ℃,the response was 11.6 toward 100 × 10-6 ethanol gas,and the CoS nanofibers-based sensor exhibits a short response time and recovery time of 5 and 6 s at the optimum temperature,respectively,the result also shows that the sensor has good stability after 50 days,which would be a favorable characteristic as a promising sensor.In addition,the Pauli paramagnetic property of CoS nanofibers was also investigated at room temperature.
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