Review-Recent Advances in Tin Oxide Nanomaterials as Electrochemical/Chemiresistive Sensors

Electrochemical, chemiresistive and wearable sensors based on tin oxide (SnO2) were investigated for chemical sensing applications. There is an increased usage of SnO2 as modifier electrode materials because of its astonishing features of thermal stability, biocompatibility, excellent bandgap, cost effective and abundant availability. The surface of working electrode is modified by nanomaterials of SnO2 in combination with various metals, semiconductors and carbon derivatives for improved sensing performance. Various voltammetric and amperometric techniques were involved in studying the electrochemical properties and behaviour of the anlaytes at the surface of modified electrodes. This review focused on some recent works that provides an overview of the applications of SnO2 nanomaterials for the development of chemiresistive, electrochemical, and wearable sensors.

Automated summary

Tin oxide (SnO2) based sensors have been investigated for chemical sensing applications due to their excellent thermal stability, biocompatibility, bandgap, cost effectiveness and abundant availability. These sensors are modified with SnO2 nanomaterials in combination with various metals, semiconductors and carbon derivatives to improve sensing performance. Various voltammetric and amperometric techniques are used to study the electrochemical properties and behavior of analytes on the surface of modified electrodes.