Efficient CO2 reduction to reveal the piezocatalytic mechanism: From displacement current to active sites

Emergence of Non‐photoresponsive Catalytic Techniques for Environmental Remediation and Energy Generation

“…In the same year, Ren et al. introduced coupling of displacement current with principle of piezoelectric generator (PENG) which shows CO production of 261.8 μmol g −1 h −1 with 93.8% selectivity under 50 kHz ultrasonic frequency [126] . Besides the low production of CO as compared to previous studies by other research groups, Ren et al.…”

“…[125] In the same year, Ren et al introduced coupling of displacement current with principle of piezoelectric generator (PENG) which shows CO production of 261.8 μmol g À 1 h À 1 with 93.8% selectivity under 50 kHz ultrasonic frequency. [126] Besides the low production of CO as compared to previous studies by other research groups, Ren et al introduced a new mechanism which depicts piezocatalysis can enhance catalytic activity without necessarily applying more mechanical energy. These studies demonstrate that effective piezocatalysis opens up a wider range of options and potential outcomes for carbon recycling, environmental protection, and energy conservation.…”

Tribocatalysis mechanisms: electron transfer and transition

“…Currently, there is burgeoning interest in research on the realization of chemical reactions by harvesting mechanical energy in the environment through piezocatalysis and tribocatalysis. Piezoelectric materials generate a piezoelectric potential difference in response to mechanical force and catalyze chemical reactions, [1][2][3][4] thereby enabling water splitting and degradation of organic pollutants, which is termed as piezocatalysis. 5 Similarly, the triboelectric effect generated by mechanical energy that drives catalytic reactions is called tribocatalysis.…”

SnFe 2O 4/ZnIn 2S 4/PVDF piezophotocatalyst with improved photocatalytic hydrogen production by synergetic effects of heterojunction and piezoelectricity

“…Recently, the piezoelectric field has been gradually applied in the field of photocatalysis due to its ability to accelerate the directional separation and transfer of charge carriers [19,20]. Piezoelectric materials can be deformed under the action of stress such as mechanical stirring or ultrasonic vibration, and the noncoincidence of the charge centers will generate an alternating polarized electric field [21].…”