Frida Hemstad Danmo with a material (IMAGE) Norwegian University of Science and Technology Caption Frida Hemstad Danmo with a material that seems promising for producing oxygen cheaply. Credit Photo: Per Henning, NTNU Usage Restrictions Use only in association with articles about this research and with proper credit. 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.