Edge-Rich Interconnected Graphene Mesh Electrode with High Electrochemical Reactivity Applicable for Glucose Detection.

ABSTRACT: The development of graphene structures with controlled edges is greatly desired for understanding heterogeneous electrochemical (EC) transfer and boosting EC applications of graphene-based electrodes. We herein report a facile, scalable, and robust method to produce graphene mesh (GM) electrodes with tailorable edge lengths. Specifically, the GMs were fabricated at 850 °C under a vacuum level of 0.6 Pa using catalytic nickel templates obtained based on a crack lithography. As the edge lengths of the GM electrodes increased from 5.48 to 24.04 m, their electron transfer rates linearly increased from 0.08 to 0.16 cm∙s-1, which are considerably greater than that (0.056 ± 0.007 cm∙s-1) of basal graphene structures (defined as zero edge length electrodes). To illustrate the EC sensing potentiali

SUBMITTER: Tran VV 

PROVIDER: S-EPMC7922656 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature