catalyst assembly schematic (IMAGE) DOE/Brookhaven National Laboratory Caption A schematic showing how single platinum atoms (Pt SA) on a cerium oxide surface self-assemble at elevated temperature (T) to become active nanocatalyst (NC) particles. At high temperature, the catalyst converts hydrogen (H2) and carbon dioxide (CO2) into water (H2O) and carbon monoxide (CO). Upon cooling, the nanocatalyst particles disassemble into single platinum atoms that can be reactivated and used again. Credit 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.