Can Sonochemistry Help in Producing Hydrogen Along Thermochemical Cycles?

Sonochemistry is known to favor specific chemical routes, especially those involving radicals. However, the main chemical effects of sonication result from intense cavitation, which is not easily obtained under high pressures. Nevertheless, some difficult steps of known thermochemical cycles may advantageously make use of sonochemistry. After having listed several examples where sonochemistry is likely to improve the unit operations, we will specifically focus on the I-S cycle. More particularly, we will assess the perspective of decomposing HI into H2 and I2 without necessarily separating HI from H2SO4.