Enabling PIEZOpotential in PIEZOelectric Semiconductors for Enhanced Catalytic Activities

The past several decades have witnessed significant advances in synthesis and applications of PIEZOelectric semiconductors. They represent an important class of materials, including piezoelectric, pyroelectric and ferroelectric semiconductors. Notably, an intriguing combination of physical and chemical phenomena in PIEZOelectric semiconductors has triggered much interest in PIEZOcatalysis. Regardless of a short period of time for the development of PIEZOcatalysis, remarkable progress has been made in this field. Herein, this review summarizes recent development in PIEZOcatalysis enabled by PIEZOelectric semiconductors due to PIEZOpotential (i.e., piezopotential, pyropotential, and ferropotential)‐induced built‐in electric field. First, the PIEZOelectrics (i.e., piezoelectrics, pyroelectrics and ferroelectrics) are briefly introduced. Second, recent developments pertaining to PIEZOpotential‐mediated catalysis are highlighted, including the introduction of representative PIEZOelectric semiconductors, their possible catalytic mechanisms, novel techniques to produce their PIEZOelectric effects during catalytic process, and several appealing examples about PIEZOcatalysis. Finally, the challenges in the field and exciting opportunities to further improve the PIEZOcatalytic efficiency are discussed.

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