铁氰化钴修饰石墨烯平面电极对过氧化氢的传感作用

利用高分子支撑法将气相沉积（CVD）石墨烯从铜基底上转移到聚对苯二甲酸乙二醇酯（PET）基底上,制备出石墨烯平面电极（GPE）,通过循环伏安法将铁氰化钴（Co HCF）纳米颗沉积到GPE上,得到铁氰化钴修饰石墨烯平面电极（Co HCF/GPE）。研究表明,此电极对过氧化氢具有良好的传感作用,从而构建一种新型无酶过氧化氢传感器。此传感器在过氧化氢浓度为5.0-1200μmol/L范围内,响应电流与浓度呈现良好的线性关系,检出限为7.1 nmol/L（S/N=3）,响应时间约为2 s,具有稳定性好、抗干扰能力强、制备简单等优点。...

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Published in分析化学 Vol. 45; no. 6; pp. 830 - 836
Main Author 赵鸿彩 张璞 李社红 罗红霞
Format Journal Article
LanguageChinese
Published 中国人民大学化学系,北京,1000872 2017
Subjects
化学修饰平面电极
气相沉积
石墨烯
过氧化氢
铁氰化钴纳米颗粒
过氧化氢
Cobalt hexacyanoferrate nanoparticle
Hydrogen peroxide
Chemically modified platform electrode
化学修饰平面电极
Graphene
气相沉积
石墨烯
铁氰化钴纳米颗粒
Chemical vapor deposition
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Summary:利用高分子支撑法将气相沉积（CVD）石墨烯从铜基底上转移到聚对苯二甲酸乙二醇酯（PET）基底上,制备出石墨烯平面电极（GPE）,通过循环伏安法将铁氰化钴（Co HCF）纳米颗沉积到GPE上,得到铁氰化钴修饰石墨烯平面电极（Co HCF/GPE）。研究表明,此电极对过氧化氢具有良好的传感作用,从而构建一种新型无酶过氧化氢传感器。此传感器在过氧化氢浓度为5.0-1200μmol/L范围内,响应电流与浓度呈现良好的线性关系,检出限为7.1 nmol/L（S/N=3）,响应时间约为2 s,具有稳定性好、抗干扰能力强、制备简单等优点。
Bibliography:Chemical vapor deposition; Graphene; Cobalt hexacyanoferrate nanoparticle; Chemically modified platform electrode; Hydrogen peroxide
ZHAO Hong-Cai, ZHANG Pu, LI She-Hong, LUO Hong-Xia（ Department of Chemistry, Renmin University of China, Beijing 100872, China）
22-1125/O6
A large-area graphene platform electrode （GPE） was fabricated by transferring the chemical vapor deposition （ CVD） graphene grown on Cu foils to polyethylene terephthalate （ PET） substrates with the aid of polymethyl-methacrylate （ PMMA）. Then cobalt hexacyanoferrate （ CoHCF） was electrodeposited on the GPE by cyclic voltammetry to obtain a CoHCF/GPE. The morphology and electrochemical properties of this electrode were studied by scanning electron microscope （ SEM ） , electrochemical impedance spectroscopy （EIS） and the electrochemical measurements. Results showed that the electrode had favorable sensing effect toward H2O2. On the basis of this, a new nonenzyme H2O2 sensor was constructed. Under the optimal experimental conditions, the proposed
ISSN:0253-3820
DOI:10.11895/j.issn.0253-3820.170022