Author/Authors
ALBAYRAK ARI, Gülşen İstanbul Üniversitesi - Mühendislik Fakültesi - Kimya Mühendisliği Bölümü, Turkey , IOJOIU, Cristina Laboratoire d Electrochimie et de Physicochimie des Matériaux et des Interfaces (LEPMI) - Institut Polytechnique de Grenoble, France , SANCHEZ, Jean‐Yves Laboratoire d Electrochimie et de Physicochimie des Matériaux et des Interfaces (LEPMI) - Institut Polytechnique de Grenoble, France
Title Of Article
Synthesis and Characterization of Stable Anion Exchange Membranes: The Addition of Electron‐withdrawing Group
شماره ركورد
25531
Abstract
Anion exchange membranes (AEM) based on poly(2,6‐dimethyl‐1,4‐phenylene oxide) (PPO) were used as polymer electrolyte membrane for fuel cell applications. The membranes were prepared via bromination, quaternization and nitration reactions and their fuel cell‐related properties (water uptake, ion exchange capacity, ionic conductivity) were determined. Also, the structures and thermal properties were studied with Fourier transform infrared spectroscopy (FTIR), Size exclusion chromatography (SEC) and Differential scanning calorimetry (DSC). Nitration of quaternized PPO (Q‐PPO) leaded to a decrease in water uptake and ion exchange capacity of the AEM. However, Q‐PPO membrane treated with nitration reaction (NO_2‐Q‐PPO) exhibited a significant alkaline stability compared to quaternized PPO (Q‐PPO). The results indicated that the addition of electronwithdrawing group, such as nitro, into the structure in order to improve in alkaline stability is a promising new route for preparation alkaline stable AEM membranes.
From Page
442
NaturalLanguageKeyword
Polyphenylene oxide , Fuel cell , Anion exchange membrane
JournalTitle
Journal Of Natural and Applied Sciences
To Page
447
JournalTitle
Journal Of Natural and Applied Sciences
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