1. Chemistry Department, University of Beira Interior, 6200-001 Covilhã, Portugal
2. Chemistry Department and CQ-VR, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
3. Chemistry Department and Chemistry Center, University of Minho, 4710-057 Braga, Portugal
4. CENIMAT/I3N, Departamento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, 2829-516 Lisboa, Portugal
5. Physics Department and CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal