Skip to main content
Home / Journal of Bionanoscience, Volume 3, Number 2

Modified-Bio-Polymeric-Mixed-Matrix-Membrane Electrolytes for Direct Methanol Fuel Cells

Buy Article:

$107.14 + tax (Refund Policy)

Bio-polymeric membranes comprising chitosan (CS)-gelatin (GL) networks cross-linked with sulfosuccinic acid (SSA) and modified with stabilized silico-tungstic acid (SWA) are reported for application in direct methanol fuel cells (DMFCs). Physico-chemical properties of these membranes are evaluated using thermo-gravimetric analysis (TGA) and scanning electron microscopy (SEM) in conjunction with their mechanical properties. Based on water sorption and proton conductivity measurements on the membranes, the optimum content of 5 wt% SWA in the membrane is established. The membrane-electrode assembly with 5 wt% stabilized SWA-CS-GL mixed-matrix membrane delivers peak power-density of 47 mW/cm2 at a load current-density of 200 mA/cm2 in a DMFC at 70 °C at methanol cross-over rate 40% lower in relation to a DMFC with Nafion-117 membrane electrolyte under similar operating conditions.

Keywords: BIO-POLYMERIC MATRICES; DMFC; HETEROPOLYACID; METHANOL BARRIER

Document Type: Research Article

Publication date: 01 December 2009

More about this publication?
  • Bionanoscience attempts to harness various functions of biological macromolecules and integrate them with engineering for technological applications. It is based on a bottom-up approach and encompasses structural biology, biomacromolecular engineering, material science, and engineering, extending the horizon of material science. The journal aims at publication of (i) Letters (ii) Reviews (3) Concepts (4) Rapid communications (5) Research papers (6) Book reviews (7) Conference announcements in the interface between chemistry, physics, biology, material science, and technology. The use of biological macromolecules as sensors, biomaterials, information storage devices, biomolecular arrays, molecular machines is significantly increasing. The traditional disciplines of chemistry, physics, and biology are overlapping and coalescing with nanoscale science and technology. Currently research in this area is scattered in different journals and this journal seeks to bring them under a single umbrella to ensure highest quality peer-reviewed research for rapid dissemination in areas that are in the forefront of science and technology which is witnessing phenomenal and accelerated growth.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Ingenta Connect is not responsible for the content or availability of external websites

Share Content

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content