Progress in the use of electrodes modified with coordination compounds for methanol electro-oxidation

Coordination complexes and metal?organic frameworks are compounds with unlimited applications in electrochemistry. Those based on Co, Ni, and Cu offer redox-active properties that can be an advantage for the electro-oxidation of short-chain alcohols in alkaline media. At the present, there is a crescent interest for its application in direct methanol fuel cells and a big effort is being carried out to improve the oxidation potentials obtained with these compounds before their practical uses as DMFCs anodes. Herein, we collected the recent advance on the use of coordination compounds (coordination complexes and Metal-Organic Frameworks) as modifiers for electrodes and their evaluation on methanol electro-oxidation in alkaline media. Fundamental aspects of the key role of coordination compounds in electro-oxidation, the fabrication of modified electrodes containing coordination compounds, and diverse examples of its use of methanol electro-oxidation will be discussed.