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Protonic conductivity and thermal properties of cross-linked PVA/TiO2 nanocomposite polymer membranes
(Elsevier, 2019-10-15)
Nanocomposite polymer membranes based on PVA/TiO2 were prepared by a solution casting method. Glutaraldehyde solution (GA) was used as linking agent to improve the chemical, thermal and physical properties of the membranes. ...
Dependence of the electrical conductivity and elastomeric properties on sample preparation of blends of polyaniline and natural rubber
(Wiley-Blackwell, 2005-08-15)
Blend films (free-standing) containing 20% in volume of polyaniline (PANI) in 80% of natural rubber (NR) were fabricated by casting in three different ways: (1) adding PANI-EB (emeraldine base) dissolved in N-methyl-2-pyrrolidone ...
Dependence of the electrical conductivity and elastomeric properties on sample preparation of blends of polyaniline and natural rubber
(Wiley-Blackwell, 2005-08-15)
Blend films (free-standing) containing 20% in volume of polyaniline (PANI) in 80% of natural rubber (NR) were fabricated by casting in three different ways: (1) adding PANI-EB (emeraldine base) dissolved in N-methyl-2-pyrrolidone ...
Síntese e caracterização de novos polímeros baseados em poli(arileno éter sulfona) sulfonados reticulados e produção de membrana para aplicação em células a combustível do tipo PEMFC
(Universidade Federal de Minas GeraisUFMG, 2016-02-25)
In the present work a comprehensive literature review on fuel cells and, in particular, of the fuel cell with polymer electrolyte (PEMFC) was carried out. They addressed issues related to its operating principle, its ...
Influence of Pectin as a green polymer electrolyte on the transport properties of Chitosan-Pectin membranes
(Elsevier, 2017-02-10)
Novel blend membranes have been prepared from Chitosan (CH), Pectin (PEC) andtheir mixtures. The obtained samples were cross-linked and sulfonated beforecharacterization. The results show that CH/PEC membranes display ...
Proton and cesium conductivity in perfluorosulfonate ionomers at low and high relative humidity
(Elsevier Science, 2017-03)
Nafion exhibits one of the highest proton conductivity at room temperature and it is the standard electrolyte of proton exchange membrane fuel cells (PEMFC). However, the temperature dependence of ionic conductivity of ...