Platinum Nanoclusters (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption In these STM images of a platinum catalyst, (A) shows the terraced the surface under ultrahigh vacuum, (B) as the surface is covered with carbon monoxide and pressure increases, the terraces widen (C) when coverage is complete and press reaches one torr, the terraces fracture into nanoclusters (D) enlarged view shows triangular shape of the nanoclusters, two of which are marked by red lines. Credit (Image courtesy of Berkeley Lab Somorjai and Salmeron, et. al) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.