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CuS/RGO hybrid by one-pot hydrothermal method for efficient electrochemical sensing of hydrogen peroxide

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  • 【题名】:CuS/RGO hybrid by one-pot hydrothermal method for efficient electrochemical sensing of hydrogen peroxide
  • 【年份】:2017
  • 【作者】:Wei Liu,Chaojun Lei,Hongxiu Zhang,Xiaolin Wu,Qing Jia,Denghong He,Bin Yang,Zhongjian Li,Yang Hou,Lecheng Lei,Xingwang Zhang
  • 【关键词】:CuS nanoparticles Reduced graphene oxide Non-enzymatic sensor Hydrogen peroxide Electrochemical catalyst
  • 【摘要】:In this study,a non-enzymatic hydrogen peroxide sensor was successfully fabricated on the basis of copper sulfide nanoparticles/reduced graphene oxide(CuS/RGO) electrocatalyst.Using thiourea as reducing agent and sulfur donor,CuS/RGO hybrid was synthesized through a facile one-pot hydrothermal method,where the reduction of GO and deposition of CuS nanoparticles on RGO occur simultaneously.The results confirmed that the CuS/RGO hybrid helps to prevent the aggregation of CuS nanoparticles.Electrochemical investigation showed that the as-prepared hydrogen peroxide sensor exhibited a low detection limit of 0.18μmol/L(S/N = 3),a good reproducibility(relative standard deviation(RSD) of4.21%),a wide linear range(from 3 to 1215 μmol/L) with a sensitivity of 216.9 μA L/mmol/cm2 under the optimal conditions.Moreover,the as-prepared sensor also showed excellent selectivity and stability for hydrogen peroxide detection.The excellent performance of CuS/RGO hybrid,especially the lower detection limit than certain enzymes and noble metal nanomaterials ever reported,makes it a promising candidate for non-enzymatic H2O2 sensors.
  • 【期刊名】:中国化学快报(英文版)
  • 【分类号】:O657.1;TP212
  • 【期号】:第6期
  • 【资金项目】:received from the national natural science foundation of china(nos.21522606,21676246,21476201,21436007,u1462201,and 21376216); supported by zhejiang provincial natural science foundation of china(no.lr17b060003); major science and technology project of water pollution control and management(no.2017zx07101)
  • 【作者单位】:Key Laboratory of Biomass Chemical Engineering of Ministry of Education,College of Chemical and Biological Engineering,Zhejiang University
  • 【页码】:1306-1311
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