Figure 2 (IMAGE) National Research Council of Science & Technology Caption Comparison of the distribution results according to the thickness of (A) Zr (B) S (C) C on the surface of the separation membrane: KIER separation membrane (Z75, Z77), Commercial membrane (Zirfon). Credit Korea Institute of Energy Research (KIER) Usage Restrictions The sources of photos and research results from KIER must be specified. 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.