Porous Carbon (IMAGE) Rice University Caption High-resolution transmission microscope (left) and scanning electron microscope images of a porous carbon sample studied for its ability to capture carbon dioxide from natural gas. Credit Barron Research Group/Rice University Usage Restrictions For news reporting purposes only. 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.