Sodium-Embedded Carbon (IMAGE) Michigan Technological University Caption A scanning electron microscope image of sodium-embedded carbon reveals the nanowall structure and pores of the material. Credit Yun Hang Hu, Michigan Tech 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.