Abstract
The Cover Feature highlights the key role of noble metal as cocatalysts for piezoelectricity-driven oxygen reduction and hydrogen evolution reactions. In their Research Article, W. Wang, J. Li and co-workers synthesized BaTiO3@Metal (BTO@M, M=Pt, Pd and Au) hetero-nanostructures by using a piezodeposition method. The deposited metal cocatalysts significantly promote the separation and migration of piezogenerated charge, consequently enhancing the piezocatalytic reactions on different metal cocatalyst interfaces. Specifically, BTO@Au under ultrasonic vibrations exhibited most efficient generation of reactive oxidative species via a two-electron reduction pathway in the presence of dissolved oxygen, while BTO@Pt showed promoted hydrogen evolution in the absence of oxygen. This work could further advance piezocatalysis in the field of clean energy, water disinfection and biomedicine. More information can be found in the Research Article by W. Wang, J. Li and co-workers.
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