Non-precious metal-based integrated electrodes for overall alkaline water splitting

A bifunctional electrocatalyst interface requires a superior charge transfer and good electric conductivity to produce an efficient and stable water splitting reaction. In the context of controlling the electrochemical activity of bifunctional catalytic materials, we demonstrate a novel approach to bridge conductive C-Qd-Mn interfaces with precise control. The excellent performance for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) can be dominantly attributed to the unique structure of C-Qds-Mn, which provides abundant active sites and facilitates electron transfer between electrode and electrolyte. Eco-friendly C-Qds were synthesized using a large-scale thermal assisted technique and utilized as electrocatalysts with Mn₃O₄ in alkaline splitting ToF (Turn over Frequency) calculation to make an effective combination. Due to their increased ECSA, conductivity, and electron-hole transfer, the prepared C-Qds-Mn delivered excellent HER/OER (0.494 V/1.6671V) activity, lower Standard deviation 0.006 V and 0.009V, surpassing the 10 mA limit comparable to commercially.