Manorama Singh, Smita R. Bhardiya, Ankita Rai
Apr 21, 2022
Citations
0
Influential Citations
0
Citations
Quality indicators
Journal
Current Analytical Chemistry
Abstract
Hydrazine is a well-known hepatotoxic, mutagen and carcinogen. It adversely affects not only the liver, DNA and kidney but the central nervous system also. As per the record of the Environmental Protection Agency (EPA), the United States, the optimum concentration of it has been permitted in sewages, industrial and agricultural effluents 0.1 ppm. Therefore, monitoring of hydrazine concentration is essential at the trace level. This review focuses on the preparation, characterization and application of graphene-based nanomaterials towards the development of electrochemical sensors for hydrazine sensing. Several literature reports for the last decade i. e. 2010 to 2021 have been tried to summarize the development of different electrochemical sensors using graphene-based nanomaterials for the detection of hydrazine in water and other environmental samples. The performance of several reported modified electrodes has been reviewed in terms of limit of detection, linear range, selectivity etc. Graphene-based nanomaterials/nanocomposite offers a new path towards the development of high-performance electrochemical sensors due to their greater active surface area and good electron transference property. Furthermore, these nanostructures have edge defects and can be expected to show more reactivity towards chemical species compared to pristine graphene. However, these novel graphene nanostructures have been scantily explored in the development of electrochemical sensors The review presents that graphene-based nanomaterials offer excellent electrocatalytic and electrochemical behavior towards hydrazine detection. The performance of fabricated electrochemical sensors has been compared in terms of linear range, limit of detection, stability and sensitivity etc. Still, no commercialized electrochemical sensor is available and there is enough scope to synthesize an efficient graphene-based nanomaterial to develop and portable and on-site electrochemical sensor hydrazine detection.