摘要
基于石墨烯纳米带（GNRs）修饰玻碳电极（GCE）开发了一种新型非酶电化学过氧化氢（H_2O_2）传感器。GNRs通过直接氧化碳纳米管（CNTs）获得。电化学表征得知,GNRs/GCE对H2O2具有较好的电催化能力;实验还对影响H2O2检测性能的各种参数,包括p H值和工作电位等进行了探讨。在最佳实验条件下,GNRs/GC电极对H_2O_2响应的线性范围为5~1500μM,检测限可达0.5μM（S/N=3）。
A novel non-enzymatic hydrogen peroxide（ H_2O_2） sensor based on the graphene nanoribbons（ GNRs）modified glassy carbon electrode（ GCE） was developed. The GNRs were prepared from direct oxidate of carbon nanotubes（ CNTs）. The results showed that the GNRs/GCE exhibited excellent electrocatalytic activity toward H_2O_2. Optimization of measurement parameters such as the p H value and applied potential were studied in detail. Under the optimum conditions,the calibration curve for H_2O_2 determination was linear in the range from 5 to 1500 μM with a detection limit of 0. 5 μM（ S / N = 3）.
出处
《广州化工》
CAS
2015年第23期108-110,136,共4页
GuangZhou Chemical Industry
基金
南阳师范学院专项基金(zx2014048)
南阳师范学院大学生实践教学活动创新项目
关键词
石墨烯纳米带
过氧化氢
传感
graphene nanoribbons
hydrogen peroxide
sensor
