7 documents found, page 1 of 1
Wastewater Electrolysis for Hydrogen Production
Cartaxo, Marco; Fernandes, José; Gomes, Mário; Pinho, Henrique J. O.; Nunes, Valentim; Coelho, PauloDue to its highest gravimetric energy density, H2 has been regarded as the preferred clean-energy carrier, with potentially environmentally-friendly production through the solar-assisted WS. Since human activities generate enormous amounts of WW, H2 production from this new resource has gained attention as an emergent technology. This paper addresses the most relevant and current aspects of H2 production from W...
O Voluntariado nas IES Nacionais: Práticas de Gestão no Instituto Politécnico d...
Marques, C. G.; Monteiro, Helena; Ferreira, Isabel; Cartaxo, MarcoAs Instituições de Ensino Superior para além de agentes de transmissão de conhecimento científico, também devem contribuir para o desenvolvimento de qualidades humanas e de competências sociais dos seus estudantes, de modo a se tornarem cidadãos mais ativos e conscientes. No contexto do Ensino Superior, a prática de voluntariado tem sido estudada, e tem sido demonstrado que os seus estudantes saem beneficiados ...
Hydrogen Production via Wastewater Electrolysis – An Integrated Approach Review
Cartaxo, Marco; Fernandes, José; Gomes, Mário; Pinho, Henrique J. O.; Nunes, Valentim; Coelho, PauloHuman activities generate enormous amounts of wastewater. The hydrogen production from this new resource has gained attention as an emergent technology. Incorporating photovoltaic energy production with different electrolysis systems which can treat wastewaters and produce hydrogen simultaneously will lead to an environmentally-friendly and sustainable hydrogen production.
Participation of students in the project Valorbio: A case study to accelerate t...
Mateus, D. M. R.; Pinho, Henrique J. O.; Nogueira, Isabel; Rosa, Manuel; Cartaxo, Marco; Nunes, ValentimPurpose – The present work describes the case of the Valorbio research project, in which students of different high-level programs were involved in the experimental work and in the dissemination of results in collaboration with the research team. Design/methodology/approach – The inclusion in higher education curricula of content related to the sustainable development should be a preferred mechanism for the dis...
Solid Waste Valorisation for Wastewater Treatment Processes
Cartaxo, Marco; Rosa, Manuel; Nogueira, Isabel; Nunes, Valentim; Pinho, Henrique J. O.; Mateus, D. M. R.The present work was part of a research project, which pursued the treatment and reuse of urban and industrial wastewaters as well as solid waste. Its main goal was the development of modular systems for wastewater treatment based on constructed wetlands (CWs). The project involves the concept of circular economy and the rationale of "using waste to treat waste", exploring the possibility of the treatment syste...
Degradação electroquímica de pesticidas e outros poluentes orgânicos
Cartaxo, MarcoNeste trabalho, estudou-se a degradação electroquímica de poluentes orgânicos (fenol e paraquato), utilizando eléctrodos de óxidos de metais de transição. Para os ensaios de degradação do fenol utilizaram-se eléctrodos de aço/Fe-Co3O4. No caso do paraquato vários materiais foram ensaiados, sendo de realçar o uso de eléctrodos pastilhados de Co2FeO4. A electrólise de soluções alcalinas de fenol foi acompanha por...
Studies on Fe-Co spinel electrodes
Cartaxo, Marco; Ferreira, Teresa; Nunes, Manuel; Mendonça, M.Helena; S.Pereira, M.IsabelFeCo2O4 spinel oxide pelleted electrodes were prepared from the respective powders, obtained by low-temperature coprecipitation method. X-ray diffraction studies suggest the coexistence of two spinel phases, with different a-cell parameters. The samples show semiconductor-type behaviour, in the range 530-340 K. The estimated activation energy for conduction is about 0.7 eV. These phases are stable, after being ...