Scanning Electron Microscopy Image of Porous Carbon Microspheres (image) American Institute of Physics Share Print E-Mail Caption Scanning Electron Microscopy (SEM) image of porous carbon microspheres. Credit Hongfang Ma, Qilu University of Technology Usage Restrictions This image may be used only with appropriate credit. Share Print E-Mail 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.