2 research outputs found
Investigation of Active Spots on a TiC@MnSe Nanocomposite: An Efficient Electrocatalyst for the Oxygen Evolution Reaction
Electrocatalysts
with outstanding electrochemical performance
and
ecofriendly nature are desired for water-splitting studies to develop
substantial hydrogen energy resources. In this report, a titanium
carbide (TiC), MnSe, and novel TiC@MnSe heterostructure nanocomposite
has been prepared by a facile hydrothermal process and analyzed using
physical and electrochemical tools for electrocatalytic water splitting
via the oxygen evolution reaction (OER). The heterostructure TiC@MnSe
catalyst possesses a reduced overpotential of 299 mV at a universal
standard current density of 10 mA/cm2, a small Tafel slope
of 48.4 mV/dec, a large Cdl 54 mF, an
enhanced electrochemical functional surface area of 1350 cm2, a low charge transfer resistance of 1.13 Ω, and robust stability
after 70 h constant vigorous OER activity in an alkaline medium. The
fabricated catalyst exhibits an encapsulated heterostructure morphology
that supplies the active channels for the OER and remarkably boosts
the electrochemical activity of the proposed catalyst for electrochemical
water splitting (EWS). This work presents the superb electrochemical
activity of the metal chalcogenide-based composite TiC@MnSe and addresses
the fundamental reason for its robust performance. The research outcome
pushes for large-scale electrochemical commercial applications, and
the proposed TiC@MnSe can act as a cutting edge against costly noble
metal-based electrocatalysts