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Nanocomposite Materials Based on Electrochemically Synthesized Graphene Polymers: Molecular Architecture Strategies for Sensor Applications

期刊

CHEMOSENSORS
卷 9, 期 6, 页码 -

出版社

MDPI
DOI: 10.3390/chemosensors9060149

关键词

electropolymerization; nanomaterials; nanotechnology; graphene-oxide; conductive-polymer; electrochemical sensors

资金

  1. Sao Paulo Research Foundation-FAPESP [2016/09017-1]
  2. CEPID-FAPESP [2013/07296-2]
  3. National Council for Scientific and Technological-CNPq [303282/2020-7]
  4. Higher Education Improvement Coordination-CAPES [88882.434480/2019-01]

向作者/读者索取更多资源

The use of graphene and its derivatives in electrochemical sensors has been increasing, leading to better sensing performance compared to pure graphene and conductive polymers through the formation of composites and nanocomposites. While chemical routes are still widely used for synthesis, electrochemical routes are emerging with advantages such as low cost and the potential for modulating structural characteristics. Application of these materials in sensor devices can increase sensitivity and decrease analysis cost.
The use of graphene and its derivatives in the development of electrochemical sensors has been growing in recent decades. Part of this success is due to the excellent characteristics of such materials, such as good electrical and mechanical properties and a large specific surface area. The formation of composites and nanocomposites with these two materials leads to better sensing performance compared to pure graphene and conductive polymers. The increased large specific surface area of the nanocomposites and the synergistic effect between graphene and conducting polymers is responsible for this interesting result. The most widely used methodologies for the synthesis of these materials are still based on chemical routes. However, electrochemical routes have emerged and are gaining space, affording advantages such as low cost and the promising possibility of modulation of the structural characteristics of composites. As a result, application in sensor devices can lead to increased sensitivity and decreased analysis cost. Thus, this review presents the main aspects for the construction of nanomaterials based on graphene oxide and conducting polymers, as well as the recent efforts made to apply this methodology in the development of sensors and biosensors.

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