1. Department of Chemical Engineering
2. KU Leuven
3. B-3001 Leuven
4. Belgium
5. School of Chemical Engineering and Energy
6. Zhengzhou University
7. Zhengzhou 450001
8. China
9. Laboratory of Solid-State Physics and Magnetism
10. Department of Physics and Astronomy
11. School of Environment and Resources
12. Qi Shan Campus
13. Fuzhou University
14. 350116 Fuzhou