Layered transition metal oxides (LTMO) for oxygen evolution reactions and aqueous Li-ion batteries

This perspective paper comprehensively explores recent electrochemical studies on layered transition metal oxides (LTMO) in aqueous media and specifically encompasses two topics: catalysis of the oxygen evolution reaction (OER) and cathodes of aqueous lithium-ion batteries (LiBs). They involve conflicting requirements; OER catalysts aim to facilitate water dissociation, while for cathodes in aqueous LiBs it is essential to suppress water dissociation. The interfacial reactions taking place at the LTMO in these two distinct systems are of particular significance. We show various strategies for designing LTMO materials for each desired aim based on an in-depth understanding of electrochemical interfacial reactions. This paper sheds light on how regulating the LTMO interface can contribute to efficient water splitting and economical energy storage, all with a single material. Schematic illustration of layered transition metal oxide applicating in dual purpose as oxygen evolution reaction electrocatalyst and aqueous Li-ion batteries cathode.

Automated summary

This perspective paper comprehensively explores recent electrochemical studies on layered transition metal oxides (LTMO) in aqueous media, focusing on the catalysis of the oxygen evolution reaction (OER) and cathodes in aqueous lithium-ion batteries (LiBs). The interfacial reactions occurring at the LTMO in these systems are of particular significance. Various strategies for designing LTMO materials for each desired aim based on an in-depth understanding of the electrochemical interfacial reactions are shown in this paper. The paper highlights the importance of regulating the LTMO interface in achieving efficient water splitting and economical energy storage.