Figure 1 (IMAGE) Tohoku University Caption The designed structure of heterogenous molecular catalysts from cobalt porphyrins with various substituents. Credit Hao Li et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. 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.