Chemistry Sonochemistry

Rust usually takes months or years to form naturally, but researchers at Tohoku University found a way to speed it up dramatically. By blasting iron powder in water with ultrasound, they triggered the formation of spinel-type iron oxide nanoparticles in as little as 24 hours, no chemicals required. The technique could offer a greener route to materials used in magnets, catalysts, and biomedical applications.

New study explains why too much ultrasound slows chemical reactions

Key indicator for chemical activity, correlation between liquid and active bubbles generated clarified