• 文献标题:   Non-enzymatic multispecies sensing of key wine attributes with nickel nanoparticles on N-doped graphene composite
  • 文献类型:   Article
  • 作  者:   SHABNAM L, FAISAL SN, MARTUCCI A, GOMES VG
  • 作者关键词:   nonenzymatic sensor, wine, graphene, glucose, ethanol, glycerol
  • 出版物名称:   JOURNAL OF SOLID STATE ELECTROCHEMISTRY
  • ISSN:   1432-8488 EI 1433-0768
  • 通讯作者地址:   Univ Sydney
  • 被引频次:   0
  • DOI:   10.1007/s10008-019-04455-7 EA DEC 2019
  • 出版年:   2020

▎ 摘  要

A non-enzymatic sensor was developed for simultaneous detection of glucose, ethanol, and glycerol concentrations in wine using nickel nanoparticles on nitrogen-doped graphene, Ni-NGr. The sensor was fabricated from nickel nitrate, graphene oxide, and uric acid via facile thermal annealing process. The Ni-NGr sensor exhibited superior electrocatalytic activity compared with glassy carbon, NGr, and Ni-Gr electrodes. The anodic outputs from cyclic voltammetry for the target analyte sensing were confirmed with square wave voltammetry measurements. The Ni-NGr composite presented outstanding limit of detection (LOD = 1 mu M, S/N = 3) and sensitivity for glucose with comparable performance for ethanol and glycerol. The sensor was tested for simultaneous multispecies analysis of commercial wine samples with excellent results in terms of accuracy, stability, and recovery.