Figure 2 (IMAGE) Tohoku University Caption Surface Pourbaix diagrams and the most favorable surface states of DACs at the corresponding potential. Credit Hao Li et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. 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.