摘要
使用梳状金微电极、氧化石墨烯和钯胶体溶液,采用电化学还原-金属颗粒直接沉积法,获得钯纳米颗粒修饰还原氧化石墨烯传感器。利用扫描电子显微镜(SEM)和能量色散X射线光谱(EDX)研究了传感器制备过程中各阶段的微观结构。并在气体敏感测试系统上,对该传感器进行了系统的性能测试,包括I-V、灵敏度、重复性、稳定性和动态响应等测试。实验结果表明,钯纳米颗粒修饰还原氧化石墨烯传感器具有较高的响应灵敏度,良好的重复性和稳定性,最低检测限达到3. 0 ppm。
The palladium nanoparticle modified hydrogen sensor was obtained by electrochemical reduction and direct metal particle deposition using comb shaped gold microelectrode, graphene oxide and palladium colloid solution. Scanning electron microscopy （SEM） and energy dispersive X ray spectroscopy （EDN） were used to investigate the microscopic characteristics of the materials during the preparation process. In the gas sensor sensitivity test system, a series of performance tests were carried out on the palladium nanoparticle modified hydrogen sensor, including I-V, sensitivity, repeatability, stability and dynamic response test. The resuhs show that the palladium nanoparticle modified , and the minimum detection limit
作者
唐永伦
崔艳威
史诚诚
TANG Yong-lun;CUI Yan-wei;SHI Cheng-cheng(Department of Fundamental Course Teaching,Anhui Technical College of Industry and Economy,Hefei 230051;School of Chemistry and Materials Science,Anhui Normal University,Wuhu 241000,Anhui,China)
出处
《合肥学院学报（综合版）》
2018年第5期53-59,共7页
Journal of Hefei University：Comprehensive ED
关键词
氢气传感器
还原氧化石墨烯
钯纳米颗粒
电化学还原
Hydrogen sensor
reduced Graphene oxide
Pd nanoparticles
electrochemical reduction
