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  • 文献标题:   A novel enzyme-free hydrogen peroxide sensor based on polyethylenimine-grafted graphene oxide-Pd particles modified electrode
  • 文献类型:   Article
  • 作　　者:   XU CY, ZHANG LP, LIU L, SHI YF, WANG HJ, WANG XB, WANG FF, YUAN BQ, ZHANG DJ
  • 作者关键词:   graphene oxide, polyethyleneimine pd particle, 1ethyl33dimethylaminopropylcarbodiimide, hydrogen peroxide
  • 出版物名称:   JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • ISSN:   1572-6657 EI 1873-2569
  • 通讯作者地址:   Anyang Normal Univ
  • 被引频次:   15
  • DOI:   10.1016/j.jelechem.2014.08.003
  • 出版年:   2014

▎ 摘　　要

A novel enzyme-free hydrogen peroxide (H2O2) sensor was fabricated by coating graphene oxide (GO), branched polyethylenimine (PEI) and Pd particles in sequence on the surface of glassy carbon (GC) electrode (Pd-PEI/GO/GC). A layer-by-layer method was used, which involved pi-pi interactions, covalent bonding through 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide/N-hydroxysulfosuccinimide (EDC/NHSS) chemistry, electrostatic adsorption and electroreduction. The Pd-PEI/GO/GC electrode exhibited high electrocatalytic activity, a low detection limit, and good stability for the detection of H2O2. The sensor's practical application was tested via determination of H2O2 in real water samples. (C) 2014 Elsevier B.V. All rights reserved.