Controlling the Synthesis Protocols of Palladium-Based Nanostructures for Enhanced Electrocatalytic Oxidation of Carbon Monoxide: A Mini-Review

Abstract

Pd-based nanostructures are endowed with impressive catalytic features for alcohol-based fuel cells, however, their poisoning by carbon monoxide (CO) is a great barrier to large-scale utilization of such fuel cells as alternative power sources. The need to optimize the electrochemical CO oxidation (COOxid) of Pd-based nanostructures in various electrolytes has attracted much attention in the last decade, so it is important to provide a timely update on this area of research. This mini-review highlights the most recent advances in controlling some synthesis methods of Pd-based nanostructures and their morphologies for enhanced electrocatalytic COOxid in different electrolyte conditions in the last three years. Finally, the main challenges for commercially viable Pd-based nanostructures for electrochemical COOxid are discussed, highlighting the future perspectives and providing promising solutions for practical COOxid application.