6 documents found, page 1 of 1
Tuning cathode porosity for electrochemical reduction of CO2 at high pressure [...
Messias, Sofia; Fialho, Maria T.; Paninho, A. B.; Nunes, A. V. M.; Branco, Luis C; Nunes, D.; Martins, Rodrigo; Mendes, Manuel Joao; Rangel, C. M.ABSTRACT: The development of active and stable catalytic cathodes is critical for advancing electrochemical carbon dioxide reduction into fuels and chemicals from Lab to market. This is a technology with a high potential to contribute to combat climate changes by using captured CO2, water and renewable energy [1]. The use of pressures higher than atmospheric pressure to carry out the co-electrolysis of CO2 and ...
Aerogel cathodes for electrochemical CO2 reduction [Comunicação oral]
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.ABSTRACT: 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 c...
Advances in electrochemical reduction of CO2 in ionic liquid-based electrolytes...
Machado, Ana; Messias, Sofia; Paninho, A. B.; Nunes, A. V. M.; Rangel, C. M.; Branco, Luis CABSTRACT: Electrochemical reduction of CO2 was for the first time reported in 1870 [1], but it was only after 2010 that this field was the subject of intense research efforts. The use of renewable electricity to convert CO2 into products that are currently derived from fossil products and have high carbon footprint will certainly make this technology one pillar of a sustainable chemical industry. The scepticism...
Protic ionic liquids as electrolyte for electrochemical CO2 reduction [Resumo]
Messias, Sofia; Paninho, A. B.; Rangel, C. M.; Branco, Luis C; Machado, AnaABSTRACT: Ionic liquids have been considered a promising material under investigation for integration of CO2 capture and electrochemical reduction, due to their recognized sustainability and tunable properties. During previous works, the development of an electrochemical process to produce syngas (CO+H2) using electrolytes based on 1-ethyl-3-methyl-imidazolium trifluoromethanosulfate [EMIM][OTf] was reported [1...
Imidazolium and picolinium-based electrolytes for electrochemical reduction of ...
Messias, Sofia; Paz, Vitória; Cruz, Hugo; Rangel, C. M.; Branco, Luis C; Machado, AnaABSTRACT: Ionic liquids (ILs) have been considered among one of the most promising materials under investigation for integration of CO2 capture and electrochemical reduction (ECR). In the design of an IL-based electrolyte that can be employed industrially, the understanding of the influence of IL structure on ECR was considered essential. In this context, electrolytes with trifluoromethanosulfonate (OTf) anion ...
Mesoporous silica nanoparticles with manganese and lanthanide salts: synthesis,...
Forte, Andreia; Gago, Sandra; Carrott, Manuela Ribeiro; Carrott, Peter; Alves, Celso; Teodoro, Fernando; Pedrosa, Rui; Marrucho, Isabel M.Several organic salts based on the combination of two different choline derivative cations and MnCl3−, GdCl4− and TbCl4− as anions were immobilized in mesoporous silica nanoparticles (MSNs) by a two-step synthetic method. Firstly, MSNs were functionalized with choline derivative cations with chloride anions and then the metals were incorporated by the reaction of the chloride with the respective metal chloride ...