1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China
2. Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China
3. Scientific Imaging Section, Okinawa Institute of Science and Technology Graduate University, Kunigami-gun, Okinawa 904-0412, Japan
4. Clean Energy Cluster, International Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal