کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6603407 1424087 2018 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
One-step synthesis of three-dimensional Co(OH)2/rGO nano-flowers as enzyme-mimic sensors for glucose detection
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
One-step synthesis of three-dimensional Co(OH)2/rGO nano-flowers as enzyme-mimic sensors for glucose detection
چکیده انگلیسی
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 200 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 5 × 10−3 to 1 mol L−1 NaOH solution. Moreover, this sensor showed a wide linear range, excellent selectivity, reproducibility and stability for real blood analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 270, 20 April 2018, Pages 147-155
نویسندگان
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