Aerogel (IMAGE) Rice University Caption An electron microscope image shows an aerogel created at Rice University as a possible alternative to platinum as a catalyst in fuel cells. The porous material is made of graphene nanoribbons combined with boron and nitrogen molecules. The image shows an area about 400 nanometers wide. Credit Ajayan 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.