This work was supported by funds from FEDER (COMPETE 2020 Programme) and FCT-Portuguese Foundation for Science and Technology under the projects UID/CTM/50025/2013 and UID/ FIS/04564/2016.M. S. I. is grateful to the Fundac¸ao para a Ciencia e Tecnologia (FCT) for nancial support through the project “MATIS – Materiais e Tecnologias Industriais Sustent´aveis (CENTRO-01-0145-FEDER-000014). V. A. K. is grateful to FCT for nancial support through the FCT Investigator Programme (project IF/00819/2014/CP1223/CT0011). The authors are grateful to Dr A. L. Kholkin (University of Aveiro) for access to SPMfacility.


Project title
This work was supported by funds from FEDER (COMPETE 2020 Programme) and FCT-Portuguese Foundation for Science and Technology under the projects UID/CTM/50025/2013 and UID/ FIS/04564/2016.M. S. I. is grateful to the Fundac¸ao para a Ciencia e Tecnologia (FCT) for nancial support through the project “MATIS – Materiais e Tecnologias Industriais Sustent´aveis (CENTRO-01-0145-FEDER-000014). V. A. K. is grateful to FCT for nancial support through the FCT Investigator Programme (project IF/00819/2014/CP1223/CT0011). The authors are grateful to Dr A. L. Kholkin (University of Aveiro) for access to SPMfacility.