Synthesis and Characterization of New Proton Conducting Hybrid Membranes for DMFC Fuel Cells Based on Poly(vinyl alcohol) and Sulfonated Nanoporous Silica

Author/Authors

Hossein ،Beydaghi Department of Chemistry - Amirkabir University of Technology, Tehran, Iran , Mehran ،Javanbakht Department of Chemistry - Amirkabir University of Technology, Tehran, Iran , Hossein ،Salar Amoli Faculty of Chemical Engineering - Iranian Research Organisation for Science and Technology, Tehran, Iran , Alireza ،Badiei School of Chemistry - University College of Science - University of Tehran, Tehran, Iran

كليدواژه

Hybrid membranes , Functionalized nanoporous silica , Proton conductivity , DMFC Fuel cells , Poly(vinyl alcohol)

سال انتشار

1388

عنوان كنفرانس

ششمين كنگره بين المللي مهندسي شيمي

زبان مدرك

انگليسي

چكيده فارسي

فاقد چكيده

چكيده لاتين

This method has been realized by preparing hybrid membranes containing SO3H-functionalized nanoporous Si-SBA-15 as hydrophilic inorganic modifier, glutaraldehyde, GLA, as cross-linking agent in a poly(vinyl alcohol), PVA, matrix. The different hybrid membranes are characterized concerning their thermal stability, water uptake, ATR and proton conductivity. Different PVA-based membranes (PVA, PVA:GLA, PVA:SBA-15 and PVA:GLA:SBA-15) were compared with each other. Compared with the pure PVA membrane, the hybrid membranes containing modified silica displayed lower thermal stability due to role of the modified silica particles as nucleation centers. In addition, the hybrid membranes showed lower water uptake but higher proton conductivity than the corresponding membranes without Si- SBA-15.

كشور

ايران

تعداد صفحه 2

7

از صفحه

1

تا صفحه

7