1. State Key Laboratory of Organic−Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
2. Physique des Solides Irradiés et des Nanostructures CP234, Faculté des Sciences, Université Libre de Bruxelles, Boulevard du Triomphe, B-1050 Bruxelles, Belgium
3. CNR-IPCF, Istituto per i Processi Chimico-Fisici, Molecular Modeling Laboratory, via G. Moruzzi 1, I-56124, Pisa, Italy
4. Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain, Place Croix du Sud 1 (NAPS-Boltzmann), B-1348 Louvain-la-Neuve, Belgium