| ZnFe2O4纳米球的制备及其对丙酮的气敏性能研究 |
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| 引用本文： | 黄苓莉,赵邦渝,李晓丹,张桂枝,郭威威. ZnFe2O4纳米球的制备及其对丙酮的气敏性能研究[J]. 功能材料, 2021, 0(3): 3145-3152,3159 |
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| 作者姓名： | 黄苓莉 赵邦渝 李晓丹 张桂枝 郭威威 |
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| 作者单位： | 重庆工商大学环境与资源学院 |
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| 基金项目： | 国家自然科学基金资助项目(61604025);重庆市基础研究与前沿探索资助项目(cstc2018jcyjAX0500);重庆市教委青年科技资助项目(KJQN201800809);催化与环境新材料重庆市重点实验室开放课题资助项目(KFJJ2019087)。 |
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| 摘 要： | 丙酮被广泛应用于工业和实验室,对丙酮浓度的检测十分重要。ZnFe2O4是一种尖晶石型三元金属氧化物,气敏性能优良,可广泛应用于气体传感器。本文采用简单的一步水热法制备了球状的ZnFe2O4气敏材料。通过XRD、XPS、SEM、TEM、N2吸附-解析仪对材料的形貌结构、化学组成、比表面积等进行分析,并以丙酮为目标气体对其气敏性能进行了综合研究。结果表明,ZnFe2O4纳米球是由纳米粒子自组装而成,有较大的比表面积;该ZnFe2O4基气体传感器在最佳工作温度150℃下对丙酮的灵敏度为65.74,并具有出色的选择性、稳定性、重复性,但随着湿度的增加其气敏性能逐渐降低。
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| 关 键 词： | 铁酸锌 灵敏度 丙酮 气体传感器 |
Preparation of ZnFe2O4 nanospheres and gas sensing performance to acetone |
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| HUANG Lingli,ZHAO Bangyu,LI Xiaodan,ZHANG Guizhi,GUO Weiwei. Preparation of ZnFe2O4 nanospheres and gas sensing performance to acetone[J]. Journal of Functional Materials, 2021, 0(3): 3145-3152,3159 |
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| Authors: | HUANG Lingli ZHAO Bangyu LI Xiaodan ZHANG Guizhi GUO Weiwei |
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| Affiliation: | (Chongqing Key Laboratory of Catalysis and New Functional Materials, College of Environment and Resources,Chongqing Technology and Business University, Chongqing 400067, China) |
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| Abstract: | Acetone is widely used in industry and laboratories,and the detection of acetone is very important.ZnFe2O4 is a spinel-type ternary metal oxide with excellent gas response and can be widely used in gas sensors.In this paper,a simple one-step hydrothermal method was used to prepare spherical ZnFe2O4 gas-sensing materials.The morphology,chemical composition,specific surface area,etc.of the material were analyzed by XRD,XPS,SEM,TEM,N2 adsorption-analyzer,and the gas-sensing performance was studied with acetone as the target gas.The results show that the ZnFe2O4 nanospheres are self-assembled from nanoparticles and have a large specific surface area.The ZnFe2O4 based gas sensor has a response of 65.74 to acetone at the optimal working temperature of 150℃,excellent selectivity,stability and repeatability,but the gas response gradually decreases with the increase of humidity. |
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| Keywords: | ZnFe2O4 response acetone gas sensor |
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