共 35 条
Nanocomposite proton exchange membranes based on Nafion containing Fe2TiO5 nanoparticles in water and alcohol environments for PEMFC
被引:76
作者:
Hooshyari, Khadijeh
[1
,2
]
Javanbakht, Mehran
[1
,2
]
Naji, Leila
[1
]
Enhessari, Morteza
[2
,3
]
机构:
[1] Amirkabir Univ Technol, Dept Chem, Tehran, Iran
[2] Amirkabir Univ Technol, Renewable Energy Res Ctr, Tehran, Iran
[3] Islamic Azad Univ, Dept Chem, Naragh Branch, Naragh, Iran
关键词:
PEMFCs;
Nafion;
Nanocomposite membranes;
Fe2TiO5;
nanoparticics;
Proton conductivity;
PERFLUORINATED IONOMER MEMBRANES;
COMPOSITE MEMBRANES;
POLY(VINYL ALCOHOL);
HYBRID MEMBRANES;
BEHAVIOR;
DEGRADATION;
PROGRESS;
D O I:
10.1016/j.memsci.2013.11.033
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
In this study, the preparation and characterization of Nalion/Fe2TiO5 nanocomposite membranes for proton exchange membrane fuel cells (PEMFCs) were investigated. Nalion/Fe2TiO5 nanocomposite membranes were prepared by dispersion of Fe2TiO5 nanoparticles within the pure commercial Nafion membranes. The composition percentage of the nanocomposite membranes and the solvent used for the dispersion of nanoparticles within the membranes were varied in order to study the effect of these variations on the proton conductivity, water uptake and also the thermal stability of the membranes. The nanocomposites membranes were characterized by using thermogravimetric analysis (TGA), scanning electron microscopy (SEM) coupled with energy dispersive X-ray (MX) spectroscopy and impedance spectroscopy (IS). The prepared Fe2TiO5 nanocomposite membranes showed a higher water uptake, proton conductivity and thermal stability compared with the pure commercial Nalion membranes. The highest proton conductivity (226 mS/cm) was observed for the membranes containing 2 wt% of Fe2TiO5 nanoparticles and prepared in de-ionized water (DI) as solvent. (C) 2013 Elsevier EIN. All rights reserved.
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页码:74 / 81
页数:8
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