ME - Comunicações orais em encontros científicos
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- Aerogel cathodes for electrochemical CO2 reduction [Comunicação oral]Publication . Messias, Sofia; Fialho, Maria T.; Paninho, A. B.; Branco, Luis C; Nunes, A. V. M.; Martins, Rodrigo; Mendes, Manuel Joao; Nunes, D.; Rangel, C. M.; Machado, AnaABSTRACT: Electrochemical reduction of carbon dioxide powered by renewable energy to produce fuels and chemicals is a technology with potential to contribute to an economy based on a carbon neutral cycle. The development of cost effective, highly active and stable catalysts for CO2 electroreduction is being intensively researched. This work addresses the development of aerogel supported copper-zinc bimetallic catalysts[1]. Aerogels are substances with exceptional properties with many current and potential applications [2-3]. Due to their high surface area, stability in corresponding gaseous or liquid phases, transport through large meso and macropores they are especially suited as catalysts and carrier materials for catalysis and, when electric conductive for electro-catalysis. Aerogels prepared by the sol gel method and impregnated with metallic particles will be tested as cathodes for the co-electrolysis of CO2 and water to produce syngas at temperatures near room temperature and high-pressure. In this way this process can be directly coupled to other high pressure processes, such as Fischer-Tropsch that use high pressure syngas as raw material. Productivities and faradaic efficiencies will be evaluated. The characterization of the aerogel-based cathodes will be undertaken by surface analysis techniques. BET surface areas will be determined. The catalytic cathodes will be tested in an ionic liquid-based electrolyte as a way to increase current densities, due to the high CO2 solubilities exhibited by some ionic liquid families.
- Artificial heat treatment of coniferous bark for the elimination of the pinewood nematode [Comunicação oral]Publication . Santos, José António dos
- Assessemnt of corrosion in offshore environment. Study in windfloat prototype : wind-enermar projectPublication . Marques, Maria João; Alves, Isabel Nascimento; Gonçalves, Rita; Cunha Diamantino, TeresaIn December 2011 WindFloat prototype, a semi-submersible floating structure was successfully deployed off the coast of Aguçadoura, North Sea of Portugal. The 2 MW WindFloat platform is the first offshore wind turbine in open Atlantic waters and as a demonstration project it appears as great opportunity to assess metal corrosion and anticorrosive protection systems efficiency in offshore environment. This kind of assessment has never been performed in Portugal. With this aim, the Materials and Coatings Laboratory (LMR) of LNEG carried out the Wind_Enermar project - "Prevention and control of corrosion in the exploitation of offshore wind energy", which involved the exposure of AH36 steel samples with and without application of different anticorrosive protection systems, selected according to the different sections of the WindFloat platform: atmospheric, splash and immersion zone.
- Avaliação do módulo de elasticidade à flexão como ferramenta do controlo da qualidade em vigas lameladas coladas em madeiraPublication . Santos, José António dos; Pinho, C. Marques
- Bem utilizar madeiras portuguesas na construção / reabilitaçãoPublication . Santos, José António dos; Duarte, M. Carlota; Santos, Joana; Pestana, Luís
- Coniferous bark heat treatment for the elimination of the pinewood nematodePublication . Santos, José António dos; Fonseca, Luís; Naves, Pedro; Nestler, Hartmut; Oliveira, Rui; Verdasca, Joaquim; Sousa, Edmundo; Abrantes, Isabel; Serra, Clara
- Coniferous bark heat treatment for the elimination of the pinewood nematode by continuous hot steam systemPublication . Serra, Clara; Santos, José António dos; Fonseca, Luís; Abrantes, Isabel
- A corrosão e a proteção dos materiais nos sistemas solares térmicos sem e com concentração [Comunicação oral]Publication . Cunha Diamantino, Teresa
- Corrosão e protecção em estruturas offshore: projecto WIND_ENERMARPublication . Marques, Maria João; Alves, Isabel Nascimento; Gonçalves, Rita; Cunha Diamantino, Teresa
- Corrosion and material protection in green and low carbon energy technologies [Comunicação oral]Publication . Cunha Diamantino, Teresa