1. Hunan joint international research center for carbon dioxide resource Utilization State Key Laboratory of Powder Metallurgy School of Physics and Electronics Central South University Changsha 410083 P. R. China
2. School of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. China
3. School of Metallurgy and Environment Central South University Changsha 410083 China
4. Nanoinstitut München Fakultät für Physik Ludwig-Maximilians-Universität München 80539 München Germany
5. School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 P.R. China
6. National Synchrotron Radiation Research Center Hsinchu 30076 Taiwan