Recent progress in the development of Platinum-based electrocatalysts for the oxidation of ethanol in fuel cells

Abstract

Humans have an ever-increasing and ever-insatiable need for energy. The world's energy demands are currently being met by burning nonrenewable fossil fuels. Recurring challenges for civilization include developing dynamic energy cradles for a prosperous society to lessen fossil fuel depletion and environmental issues. The energy gap in the modern era can only be closed by the discovery of vast quantities of non-conventional resources. In place of dirty and inefficient fossil fuels, fuel cells provide a powerful and environmentally friendly alternative. In the realm of fuel cells, the direct ethanol fuel cell (DEFC) has garnered a lot of attention because it is a renewable fuel, easy to handle, and safe to use. High catalytic capabilities and durability make Pt-based electrocatalysts very promising. However, widespread commercial use has been hampered by their expensive price, poor stability, and Pt shortage. The keys to DEFC's practical uses are increasing the activity and durability of Pt-based electrocatalysts while decreasing the Pt content. This article will provide a summary of the most recent results about the development of Pt-based alloy electrocatalysts for ethanol oxidation. In addition, the most significant technological challenges are recognized, as well as prospective future study fields to solve these difficulties in order to pave the way for more research and development leading to practical implementation.