1. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences Beijing 100083 P. R. China
2. International Center of Materials Nanoarchitectonics (WPI‐MANA) National Institute for Materials Science (NIMS) 1‐1Namiki Tsukuba Ibaraki 305‐0044 Japan