1 resultado para biochars, lithium-sulfur batteries, microporous structure, bamboo carbon–sulfur composites
em Universidade Federal do Pará
Desenvolvimento de conjunto membrana-eletrodos para célula a combustÃvel de metanol direto passiva
Resumo:
Direct methanol fuel cells (DMFCs) without external pumps or other ancillary devices for fuel and oxidant supply are known as passive DMFCs and are potential candidates to replace lithium-ion batteries in powering portable electronic devices. This paper presents the results obtained from a membrane electrode assembly (MEA) specifically designed for passive DMFCs. Appropriated electrocatalysts were prepared and the effect of their loadings was investigated. Two types of gas diffusion layers (GDL) were also tested. The influence of the methanol concentration was analyzed in each case. The best MEA performance presented a maximum power density of 11.94 mW cm<sup>-2</sup>.