Associated Laboratory for Green Chemistry - Clean Technologies and Processes

Publicações

Functional alginate aerogels as green catalytic platform for CO₂-to-syngas conversion [Resumo]

Publication . Messias, Sofia; Paninho, A. B.; Vieira, G.; Souza, A.; Rangel, Carmen M.; Nunes, Daniela; Martins, Rodrigo; Mendes, Manuel Joao; Machado, Ana

2025-06Documento de conferência

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Enhancing Proton Conductivity of SPEEK Based Membranes by Incorporation Graphene Oxide / Bisphosphonic acid dopant [Resumo]

Publication . Teixeira, Fatima; Teixeira, António Paulo Silva; Rangel, Carmen M.

ABSTRACT: The most commercially successful membrane for applications in fuel cell and electrolyzers, perfluorinated sulfonic NafionR, exhibits relevant performance limitations due to its dependence on water content with consequent proton mobility restrictions, environmental concerns and very high cost. Poly(etheretherketone) (SPEEK) polymer appears as a versatile non-fluorinated alternative for a low-cost and a more environmentally friendly membrane. Our previous studies showed that the incorporation of biphosphonic acid dopants (BPs) into the mentioned polymeric matrices, improves membrane proton conduction and durability1-5. In this work, we prepared and evaluated new doped SPEEK membranes using graphene oxide (GO) with bisphosphonic acid functionalities as dopant (GOBP), anticipating superior membranes properties, including proton conductivity.

2025-07Documento de conferência

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Green Catalytic Transformation of CO₂ to Syngas Using Aerogels [Resumo]

Publication . Paninho, A. B.; Messias, Sofia; Fernandes, I.; Rangel, Carmen M.; Nunes, A. V. M.; Branco, Luis; Martins, Rodrigo; Mendes, Manuel Joao; Machado, Ana

2025-09Documento de conferência

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Palavras-chave

Sustainable Chemistry and Clean Processes,Food Science and Technology,Chemistry to Health & Wellbeing,Cultural Heritage, Exact and natural sciences

Entidade financiadora

Fundação para a Ciência e a Tecnologia, I.P.

Programa de financiamento

Concurso para Atribuição do Estatuto e Financiamento de Laboratórios Associados (LA)

Número da atribuição

LA/P/0008/2020