Engineering nickel boride/borate amorphous/amorphous heterostructures using a simple one-pot chemical reduction method.
A heterostructure with NiB stabilizes the γ-Ni(Fe)OOH phase and increases its proportion, mitigating the degradation of the NiFe-LDH electrocatalyst under the OER cycling conditions.
Amorphous NiB produces a thicker reconstruction layer than crystalline NiB in terms of capacitance in the electrochemical activation process. Charge transfer at the derived NiB/NiOOH interfaces plays a crucial role in electrocatalytic activity.
An efficient Pt-NiB@NF catalytic electrode is rapidly constructed by mild electroless plating and electroplating. It demonstrates long-term stability at industrial-scale current densities in neutral high-salt media and alkaline systems.
The modulated electron density of CeOx–NiB/SiC@NF electrode significantly boosts the electrochemically active surface area and electron transfer, which delivers excellent performance for HER and OER. And the electrode exhibits good stability.