In this work, we reported a reasonable, simple, and low cost strategy that Cu2O is decorated with Cu layer and Al layer to realize the improvement of photoelectrochemical (PEC) performance. The results indicate that the Cu/Al layer that has surface plasmon resonance (SPR) effect inherits both properties of which Cu has high conductivity and Al could form thin Al2O3 layer to hinder Fermi-level pinning to accelerate the transfer of photoinduced electron-hole pairs. With the synergistic effect of Cu and Al, Cu/Al/Cu2O photocathode displays a higher photocurrent density (−2.16 mA/cm2 at 0 V vs RHE), which is 3.7 times as high as the pure Cu2O. Thus, loading bimetallic is believed to be an effective strategy and could inspire interest in continuing to explore novel and effective bimetallic catalysts for PEC water splitting.
The current Special Issue collected 19 original articles reporting the results of theoretical and experimental studies that provide new insights into this fascinating new generation manufacturing process, additive manufacturing (AM) [...]
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