catalyst composite (IMAGE) DOE/Brookhaven National Laboratory Caption Scientists have shown that platinum atoms (gold spheres) on cerium oxide (red and silver/black surface) can assemble into active nanocatalysts under reaction conditions and then disassemble when cooled down before reuse. Credit Valerie Lentz/Brookhaven National Laboratory Usage Restrictions OK for use with stories about this research License Original 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.