Synthesis and characterization of highly conductive MXene@Bi2O3 electrode material for improved oxygen evolution: the role of electrocatalyst for oxygen evolution reactions

MXenes are a class of two-layered progress metal carbides/nitrides that offer unique properties for diverse applications, including electrocatalysis, supercapacitors, biosensors, water refinement, and many more. Here, we demonstrate a novel MXene@Bi 2 O 3 heterostructure with boosted electrocatalytic activity for OER. Furthermore, pictures captured by electron microscopy demonstrated MXene’s strong cooperation with Bi 2 O 3 . Additionally, the 2D MXene cooperation created extra pathways for mass transport during OER. Distinctive structure and the synergistic interaction between its components, MXene@Bi 2 O 3 demonstrates remarkable electrocatalytic activity and durability in alkaline environments. With constant current density of 10 mAcm –2 , the MXene@Bi 2 O 3 catalyst showed outstanding catalytic activity and an overpotential of around 278 mV, which is 85 mV lower than the pure Bi 2 O 3 catalyst. Combining Ti 3 C 2 Tx MXene with Bi 2 O 3 led to increased intrinsic activity and accelerated charge transfer kinetics. This study proposes an effective approach for creating metal oxides and MXene hybrids with distinctive structures for electrocatalytic water splitting. The composite’s exceptional electrochemical activity and durability suggest its potential as a very efficient electrocatalyst for water-splitting. Furthermore, this work’s design and synthesis of hybrid composites with MXene-based nanomaterials opens up new opportunities for developing novel and efficient electrocatalysts in electrochemical applications.