%0 Journal Article %T Toward Phase and Catalysis Control: Tracking the Formation of Intermetallic Nanoparticles at Atomic Scale %J - %D 2019 %R https://doi.org/10.1016/j.chempr.2019.02.026 %X £¿ Consecutive formation of Pt 3Sn and PtSn was observed in real time at atomic scale £¿ The surface-mediated Sn diffusion is key to controlling overall reaction dynamics £¿ A coherent Pt 3Sn/PtSn interface lowers activation energy of phase transformation £¿ Controlled phase selection was achieved, resulting in tunable catalytic performanc %U https://www.cell.com/chem/fulltext/S2451-9294(19)30083-X