Tiny flow chips, faster clean catalysis

Designing better catalysts often means controlling where reactions happen and how fast molecules can move. In this study, researchers developed a microfluidic route to synthesis polymer microspheres whose shape could be precisely tuned from solid to hollow and open-hole forms, then decorated them with silver-based mono- and bimetallic nanoparticles. These engineered particles efficiently converted toxic 4-nitrophenol into valuable 4-aminophenol, with open-hole Ag-Pt microspheres delivering the s