Vítor Ramiro de Almeida Fernandes, researcher in the Laboratório Nacional de Energia e Geologia (LNEG, Portugal) visited the Chemical & Biomolecular Engineering Department of the University of Cantabria, from May 6 to 10, 2019. During the stay, he worked in the development of new and highly efficient catalysts and membranes for fuel cell and electrolizer systems, under the supervision of Alfredo Ortiz. This visit was possible thanks to the european project PEMFC-SUDOE in which both institutions are involved.