@unpublished{catalysis722,
            year = {2004},
           title = {Strategies for the design of membranes for fuel cells},
       publisher = {NCCR, IIT Madras},
          author = {Helen M},
         address = {NCCR, Department of Chemistry, IIT Madras},
        abstract = {Introduction
Membranes in electrochemical devices 
Nafion? ? membrane of choice
Modified PFSA membranes
Alternate sulfonated polymer membranes 
Inorganic organic composite membranes
Hybrid inorganic organic composite membranes
Acid-base polymer membranes
Concluding remark
},
             url = {http://catalysis.eprints.iitm.ac.in/722/}
}