Abstract
Perovskite and graphene-based nanocomposites have attracted much attention and been proven as promising candidates for both gas (H2S and NH3) and electrochemical (H2O2, CH3OH and glucose) sensor applications. In this review, the development of portable sensor devices on the sensitivity, selectivity, cost effectiveness, and electrode stability of chemical and electrochemical applications is summarized. The authors are mainly focused on the common analytes in gas sensors such as hydrogen sulfide, ammonia, and electrochemical sensors including non-enzymatic glucose, hydrazine, dopamine, and hydrogen peroxide. Finally, the article also addressed the stability of composite performance and outlined recent strategies for future sensor perspectives.
Highlights
The development of low cost, larger surface-to-volume ratio, low resistivity, high sensitivity, and eco-friendly natured perovskite and graphene-based composites has drawn considerable attention in both chemical [1,2] and electrochemical [3,4], sensor applications (Scheme 1)
Liu et al [20] synthesized Zn2 SnO4 nanoparticles decorated with reduced graphene oxide (ZTO/RGO) nanocomposite via solvothermal method and establish that the decorated 8ZTO/RGO showed high performance and good ethanol sensitivity
Amperometric analysis at +0.40 V vs. Ag/AgCl under neutral conditions, where the composite exhibited a sensitivity of 3.87 μA μM−1 cm−2, a linear range of 0.1 to 400 M and a detection limit of 9.8 nM due to the highest density of Cu2+ sites in (200) planes, which is useful for the hydrazine oxidation and enhanced electrocatalytic activity attained through robust synergistic interactions of the two components [51]
Summary
The development of low cost, larger surface-to-volume ratio, low resistivity, high sensitivity, and eco-friendly natured perovskite and graphene-based composites has drawn considerable attention in both chemical [1,2] and electrochemical [3,4], sensor applications (Scheme 1). As a standard technology of intelligent systems, has recently gained growing attention created potential interest in graphene for electrochemical and biosensing-oriented applications [8]. [9].The device simulation of electronic noses), supervision of indoor air greenhouse safety (e.g., carbon monoxide detection), composites based on perovskite and graphene have been reviewed and holdbased greaton promise for and environmental research (e.g., greenhouse gas monitoring). For Recently, mostascommonly used and graphene haveasbeen reviewed andapplications hold great promise chemicalthe as well electrochemical electrochemical sensors have the been significantly for the study of high potential, low-cost, applications [10,11].
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