Oxygen-vacancy-rich CoFe/CoFe2O4 embedded in N-doped hollow carbon spheres as a highly efficient bifunctional electrocatalyst for Zn–air batteries

Ni3Fe/Ni3Fe(OOH)x dynamically coupled on wood-derived nitrogen doped carbon as a bifunctional electrocatalyst for rechargeable zinc–air batteries

“…The unique hierarchical porous structure, large specific surface area, and high porosity of FeNi 3 @NWC will facilitate the construction of three-phase interfaces (TPB) during the catalytic process. 43,44 Raman spectroscopy was used to obtain information about the carbon skeleton. Two Raman bands around 1340 cm −1 and 1591 cm −1 are ascribed to the disordered carbon (D band) and the graphitic carbon (G band), respectively (Fig.…”

Anchoring Co3S4 nanowires on NiCo2O4 nanosheet arrays as high-performance electrocatalyst for hydrogen and oxygen evolution

“…The above results reveal that there is strong electron interaction between Co, Fe, S and O after the formation of the heterostructure at the NiCo 2 O 4 /Co 3 S 4 heterostructure interface, and the potential interfacial electronic structure reconfiguration will be benefit to promote the electrocatalytic activity during water splitting. 46–52…”

Vacancy designed 2D materials for electrodes in energy storage devices

“…Moreover, the electrochemical analysis of the corresponding full cell also displayed lesser surface/plating characteristics, indicating minimal ion diffusion resistance and efficient charge transport behaviour. Apart from these studies, such vacancy strategy has been investigated for other batteries like Zn–air, 207 Li–air, 208 Li–O 2 batteries 209 etc.…”