Fuel cell-based breath-alcohol sensors: Innovation-hungry old electrochemistry

Fuel cell-based breath-alcohol sensor (FCBrAS) remains the most widespread and reliable electrochemical device, for the detection of alcohol due to its inherent advantages such as portability, rapid detection, acceptable accuracy, sensitivity and selectivity. However, despite the advances in nanotechnology, FCBrAS still suffers from several technical challenges including the use of extremely high platinum loadings. In this short review, we opine that this old electrochemistry requires urgent innovative research interventions to be able to serve its purpose in the years ahead.