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A nanotecnologia a impulsionar a eficiência das pilhas de combustÃvel: Informações actuais
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ISBN10: 620766017X
ISBN13: 9786207660179
Publisher: Edicoes Nosso Conhecimento
Published: Jun 14 2024
Pages: 56
Weight: 0.21
Height: 0.13 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786207660179
Publisher: Edicoes Nosso Conhecimento
Published: Jun 14 2024
Pages: 56
Weight: 0.21
Height: 0.13 Width: 6.00 Depth: 9.00
Language: Portuguese
A nanotecnologia é um dos principais temas de investigação entre cientistas e engenheiros, e trata do estudo da matéria a escalas minúsculas, com menos de 1 mm de comprimento. Os contributos da nanotecnologia para a produção de células de combustÃvel eficientes são discutidos neste artigo. A tónica é colocada principalmente na melhoria da fiabilidade, na viabilidade das células de combustÃvel de membrana permutadora de protões (PEM) e no armazenamento de hidrogénio atómico ou molecular As tecnologias do hidrogénio são objeto de especial atenção. As alterações climáticas, exacerbadas pela poluição por gases com efeito de estufa, provocaram um interesse crescente por fontes de energia alternativas, bem como uma mudança na opinião e pressão públicas. As últimas inovações na utilização de nanomateriais para o processamento de hidrogénio solar e para o armazenamento de hidrogénio em estado sólido a bordo. Este estudo reflecte o trabalho de investigadores que utilizaram a nanotecnologia para fabricar células de combustÃvel de óxido sólido (SOFC) utilizando diferentes métodos. Estes métodos removeram ou diminuÃram efetivamente a resistência interna, resultando num grande aumento da densidade de potência das SOFC a temperaturas mais baixas.
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