Synthesis process (IMAGE) National Institute for Materials Science, Japan Caption Porous carbon nanosheet synthesis process. An MOF is first exfoliated into nanosheets (left), which are then carbonized to form porous carbon nanosheets (middle). Catalytic sites on the nanosheet can be chemically modified (right) to regulate its oxygen reduction reaction activities under acidic conditions—a useful process when the nanosheets are used as electrocatalytic materials. Credit YAMAUCHI.Yusuke@nims.go.jp National Institute for Materials Science Usage Restrictions None 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.