𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis and characterization of composite membranes based on α-zirconium phosphate and silicotungstic acid

✍ Scribed by M. Helen; B. Viswanathan; S. Srinivasa Murthy

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
648 KB
Volume
292
Category
Article
ISSN
0376-7388

No coin nor oath required. For personal study only.

✦ Synopsis

The functional properties of the composite membrane generated from polyvinyl alcohol, zirconium phosphate and silicotungstic acid are described. The fabricated membranes were characterized by using FT-IR, XRD, TGA, DSC and SEM techniques. These fabricated membranes showed reduced methanol cross over (for possible application in DMFC) relative to that of Nafion ® 115. A maximum proton conductivity of 10 -2 S cm -1 at 60% RH was attained with 30 wt% STA incorporated composite membrane. This is however lower than that observed for Nafion ® 115 at 100% RH.

📜 SIMILAR VOLUMES

Properties and structural characterizati
Properties and structural characterization of oxidized starch/PVA/α-zirconium phosphate composites
✍ Yajuan Yang; Changhua Liu; Peter R. Chang; Yun Chen; Debbie P. Anderson; Mark St 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 419 KB 👁 1 views

## Abstract Two series of composites, i.e., polyvinyl alcohol (PVA)/oxidized starch (OST)/exfoliated α‐zirconium phosphate (POST‐ZrPn) and PVA/starch (ST)/exfoliated α‐zirconium phosphate (PST‐ZrPn), were fabricated using a casting and solvent evaporation method. The composites were characterized b

Synthesis and characterization of tetrap
Synthesis and characterization of tetraprolinium silicotungstic acid tetra-hydrate, a new organic-inorganic hybrid based on polyoxometallates
✍ M. H. Alizadeh; R. Tayebee; M. Mirzaei 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 129 KB

A new solvated polyoxometallate bearing an amino acid, (I), has been prepared for the first time by the reaction of 0.16 mmol α-H 4 SiW 12 O 40 .15H 2 O with 0.78 mmol of L-proline in hydrochloric acid at pH 3. The structure of (I) was substantially characterized by some physical approaches, such as