Simple and Large-Scale Strategy to Prepare Flexible Graphene Tape Electrode

材料科学 石墨烯 电极 石墨 石墨烯泡沫 箔法 复合材料 纳米技术 碳纳米管 氧化石墨烯纸 物理化学 化学
作者
Li Wang,Jie Yu,Yayun Zhang,Han Yang,Longfei Miao,Yonghai Song
出处
期刊:ACS Applied Materials & Interfaces [American Chemical Society]
卷期号:9 (10): 9089-9095 被引量:30
标识
DOI:10.1021/acsami.6b14624
摘要

A simple and large-scale strategy to prepare flexible graphene tape electrode (GTE) was proposed. The flexible GTE was prepared by a facile peeling method in which a piece of commercial graphite foil was first covered by a commercial acrylic transparent tape and then the transparent adhesive tape was quickly torn off from the graphite foil. Scanning electron microscopy results showed that some folded and wrinkled graphene layers stood up on the GTE surface to form three-dimensional (3D) porous graphene foam. The 3D porous flexible GTE was proposed as a novel supporting matrix to load Ni–Co nanoparticles (Ni-CoNPs) and glucose oxidase (GOD) as examples to test its applications for electrochemical glucose sensing. The Ni-CoNPs/GTE showed the linear range of 0.6 μM–0.26 mM and 1.360–5.464 mM with a detection limit of 0.16 μM. The GOD/AuNPs-CHIT/GTE had a linear range of 0.616–14.0 mM and a detection limit of 0.202 mM. These results were similar or superior to the printable electrodes by nanocarbon and electrodes modified with graphene, carbon nanotubes, or porous carbon materials, but the flexible GTE was more easier to prepare in large-scale and the 3D porous graphene foam were not easy to drop off from the tape because they were glued on acrylic transparent tape firmly. Therefore, the 3D porous flexible GTE should be promising candidates for electrochemical sensors and other electrochemical applications.
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