Graphene-Metal Modified Electrochemical Sensors for Toxic Chemicals


Graphene-Metal Modified Electrochemical Sensors for Toxic Chemicals

S. Vinodhal, L. Vidhya, T. Ramya, R. Jeba Beula, P. Jegathambal

The extent of amplified wastes produced and discharged into the environment contains wide variety of libelous chemicals, contaminants and toxic substances which are carcinogenic in nature. Toxic chemicals require special consideration in view of the risks posed to ecosystem. Comprehensive investigations on development of diverse variety of sensing materials are versatile and highly adaptive and have proven to be promising. A new class of electrochemical sensors has emerged where chemical functionalisation, hybridisation have led to improved performance, stability or versatility. Graphene which is a novel, fascinating type of nanocarbon possess positive contribution to the electrode properties and exhibits beneficial behaviour for a wide variety of electrochemical applications. Graphene based metal frameworks have received great interest and opened new gates in scientific communities due to their enhanced physiochemical properties, excellent stability, higher flexibility, and very good electrical conductivity. Graphene metal hybrid electrochemical sensors lay an enhanced platform for electro analytical applications as it effectively accelerates the transfer of electrons which provides a fast and highly sensitive current response. Owing to the enhanced electronic transport property and high electrocatalytic activity of graphene, the electrochemical reactions of analyte are greatly promoted on graphene film resulting in enhanced voltammetric response. This chapter discloses the advances in the field of graphene metal modified electrochemical sensors with particular focus on toxic chemicals. The main emphasis of the chapter is on the electrochemical sensing application, summarizing the advantages, disadvantages, and challenges offered in the field.

Graphene, Modified Electrode, Toxic Chemicals, Electrochemical Sensors

Published online 8/30/2020, 34 pages

Citation: S. Vinodhal, L. Vidhya, T. Ramya, R. Jeba Beula, P. Jegathambal, Graphene-Metal Modified Electrochemical Sensors for Toxic Chemicals, Materials Research Foundations, Vol. 82, pp 91-124, 2020


Part of the book on Graphene-Based Electrochemical Sensors for Toxic Chemicals

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