Thermo-electrochemical coupling for room temperature thermocatalysis in pyroelectric ZnO nanorods

Room-temperature pyro-catalytic hydrogen generation of 2D few-layer black phosphorene under cold-hot alternation

“…5b . The cold–hot alternation excitation can induce a net change of the electric dipole moment of the pyro-catalyst 37 , which induces charge compensation on the pyro-catalyst surface. The pyro-generated positive charges ( q + ) and negative charges ( q − ) will transfer from the surface of pyro-catalyst to the reactant molecules to participate the redox reaction.…”

Pyroelectric nanoplates for reduction of CO2 to methanol driven by temperature-variation

“…Pyroelectric materials can produce positive and negative electric charges during temperature variation. The free charges generated through pyroelectric process can be applied to catalytic processes such as dye decomposition [14][15][16] and water splitting 17,18 . Theoretical calculation shows that a pyroelectric engine in an ideal condition can reach an energy conversion efficiency as high as 84-92%, which is much higher than the photovoltaic energy conversion efficiency typically in the range of 20% 19,20 .…”

Piezoelectric Materials for Controlling Electro-Chemical Processes

“…In order to decrease the recombination of piezoelectrically induced charges and extend the lifetime of negative charges, sodium sulfite (Na 2 SO 3 ) is a common sacrificial agent which can scavenge positive charges effectively [117]. For piezo-electrochemical dye degradation, the generation of active radicals is suggested as the necessary species for further decomposing organic dye molecules, such as superoxide (•O 2 − ) and hydroxyl (•OH) radicals [118][119][120]. Brief procedures for piezo-electro-chemical wastewater treatment can be expressed by the following [69]:…”