Effects of Amount of Glutaraldehyde on Behavior of Electrospun PVA/TiO2 Membrane for DEFC Applications

سال انتشار: 1389
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,980

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شناسه ملی سند علمی:

PEEL04_097

تاریخ نمایه سازی: 25 خرداد 1390

چکیده مقاله:

Nano-composite polymer membranes based on poly(vinyl alcohol)/ titanium oxide (PVA/TiO2) were prepared by electrospinning technique. Electrospinning is an efficient method for fabricating polymer membranes which are made up of ultrafine fibers with diameters in the range of few nanometers to sub- micrometers[1]. Glutaraldehyde (GA) was used as a cross-linking agent in order to improve chemical, thermal and dimentional stabilities. The properties of crosslinked electrospun membranes were characterized by scanning electron microscopy (SEM), calculation of water uptake (WU) and X-ray diffraction (XRD). The changes of ionic conductivities of membranes crosslinked with different amounts of GA were inspected by electrochemical impedance spectroscopy (EIS) method, when the membranes were placed in various alkaline solutions for 24 h. According to obtained results, these nanofibrous membranes are promising anion exchange polymer electrolytes for direct ethanol fuel cell (DEFC) applications.

کلیدواژه ها:

Direct Ethanol Fuel Cell ، PVA/TiO2 anion exchange membrane ، electrospinning ، EIS method

نویسندگان

Elham Halvani Anaraki

First Author Position or Title Department of Textile Engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶- ۸۳۱۱۱, Iran

Mohammad Zhiani

Second Author Position and Affiliation and E-mail

Mohammad Morshed

Third and other Author Position and Affiliation and E-mail

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