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基于Ni₆MnO₈@C超薄纳米片的肾上腺素电化学传感器性能研究

Facilely synthesized ultrathin Ni₆MnO₈@C nanosheets:excellent electrochemical performance and enhanced electrocatalytic epinephrine sensing

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【Author】 Peng Lei;Ying Zhou;Minglu Li;Chuan Dong;Shaomin Shuang;School of Chemistry and Chemical Engineering,Shanxi University;

【机构】山西大学化学化工学院；

【摘要】本文通过简单的水热和煅烧过程制备了Ni₆MnO₈@C超薄纳米片,用于构建肾上腺素电化学传感器。Ni₆MnO₈@C超薄纳米片的独特结构结合了碳良好的导电性和Ni₆MnO₈@C高的电催化性性能,可以增强肾上腺素的反应活性并增强对其的吸附。利用计时安培滴定法对制备的Ni₆MnO₈@C电化学传感器进行电化学性能测试。实验结果表明:所构建的Ni₆MnO₈@C电化学传感器表现出优异的电催化活性,在+0.29 V时具有良好的电流响应,其检测范围为0.01μmol·L^–1到800μmol·L^–1,检测限为3.33 nmol·L^–1（S/N=3）。此外,基于Ni₆MnO₈@C制备的电化学传感器具有良好的选择性和稳定性,已成功用于尿样和注射液中肾上腺素的测定。更多还原

【Abstract】 The ultrathin Ni₆MnO₈@C nanosheets were prepared via a facile hydrothermal and calcined routine for the epinephrine（EP） detection.The unique structure of nanosheets combined the advantages of both carbon with good conductivity and Ni₆MnO₈ with high electrocatalysis,which could enhance reaction activity and improve the adsorption of EP.The prepared electrode showed excellent electrocatalytic activity for the EP determination with a good current response at + 0.29 V.Chronoamperometric detection of EP at the Ni₆MnO₈@C/GCE achieved a linear calibration plot ranging from 0.01μmol·L^–1-800μmol·L^–1 with the LOD of 3.33 nmol·L^–1.The Ni₆MnO₈@C/GCE obtained satisfactory recoveries for EP detection in practical applications.更多还原