Controllable Growth of Tree-Like Freestanding Electrodes Induced by High-Frequency Pulse Currents for Efficient Water Splitting and Pseudocapacitance

Developing high-efficiency and low-cost bifunctional electrocatalytic electrodes has played a vital role in accelerating hydrogen production through water electrolysis but remains a multiple challenge. Meanwhile, an intricate preparation process and inferior catalytic stability limit their widespread applications. Here, a tree-like freestanding electrode (TFE) decorated with a defect-enriched heterogeneous nanostructure is fabricated via a...