Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6603407 | Electrochimica Acta | 2018 | 25 Pages |
Abstract
Currently, most metal oxides- or hydroxides-based and non-enzymatic sensors require a high alkali concentration in the working environment. Here, we designed a novel non-enzymatic sensor based on a 3D nanostructured Co(OH)2/rGO film to address this issue. The architecture of the hybrid film was in-situ constructed by the dense assembly of 200â¯nm flower-like Co(OH)2 crystals bridged by rGO nanosheets. This structure possessed an extremely large specific surface area and an excellent conductivity which were beneficial for adsorbing OH to produce oxidative CoOOH or CoO2, even in a low alkaline condition. This material was able to mimic the functionality of glucose oxidase to oxidize glucose to gluconolactone and exhibited a good sensitivity at a wide alkaline range from 5â¯Ãâ¯10â3 to 1â¯molâ¯Lâ1 NaOH solution. Moreover, this sensor showed a wide linear range, excellent selectivity, reproducibility and stability for real blood analysis.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Danfeng Jiang, Zhenyu Chu, Jingmeng Peng, Jingyi Luo, Yangyang Mao, Pengqi Yang, Wanqin Jin,