His main research interests include multifunctional reactors (sorptive-based, membrane-based, etc.), H2 production and purification technologies (e.g. reforming, water-gas shift), CO2 capture and valorisation (e.g. CO2 methanation), and the use of Advanced Oxidation Processes for the treatment of gases and water/wastewater. L.M. Madeira authored/co-authored 207 articles in peer-reviewed internationals journals (h-index of 46; source: Scopus, January 2023), and co-authored over 220 communications in conferences. He has participated in ca. 40 research projects, either as a coordinator or as a member of the team, including national and EU funding projects. He was/is the coordinator/advisor/co-advisor of 16 postdoc level researchers, 30 PhD students (22 theses already completed, 5 of them in companies) and 50 dissertations of master students.