• 文献标题:   Fabrication and characterization of pseudo reference electrode based on graphene-cement composites for corrosion monitoring in reinforced concrete structure
  • 文献类型:   Article
  • 作  者:   JIN M, JIANG Y, JIANG LH, CHU HQ, ZHI FF, GAO S
  • 作者关键词:   corrosion, reinforced concrete, electrochemical propertie, graphene, electrode
  • 出版物名称:   CONSTRUCTION BUILDING MATERIALS
  • ISSN:   0950-0618 EI 1879-0526
  • 通讯作者地址:   Hohai Univ
  • 被引频次:   2
  • DOI:   10.1016/j.conbuildmat.2019.01.169
  • 出版年:   2019

▎ 摘  要

Solid pseudo reference electrode (RE) was fabricated using graphene-cement composites for corrosion monitoring in concrete. The pore size structure and micro morphology of composites and the electrochemical performances of pseudo REs were investigated. Results reveal graphene improves the pore structure and electrical conductivity of composites. RE with largest graphene content (PRE-G20) shows better stability, reliability and resistance to pH and interfering ions compared to other REs with lower graphene contents. In addition, PRE-G20 potential has a linear response with temperature. Measuring rebar potential by embedding prepared RE in concrete could differentiate the passive or active states of steel. In this context PRE-G20 is recommended to act as pseudo solid RE in concrete due to its reliable electrochemical properties, easy fabrication as well as compatibility with concrete. (C) 2019 Elsevier Ltd. All rights reserved.