Preparation of anion exchangeable titanate nanotubes and their effect on anion exchange membrane fuel cell
| Autor: | Vijayakumar Elumalai, Dharmalingam Sangeetha |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Alkaline fuel cell
Materials science Ion exchange Mechanical Engineering Membrane electrode assembly Chemical modification 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Titanate 0104 chemical sciences chemistry.chemical_compound Membrane chemistry Chemical engineering Mechanics of Materials lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science Ammonium Polysulfone 0210 nano-technology |
| Zdroj: | Materials & Design, Vol 154, Iss, Pp 63-72 (2018) |
| ISSN: | 0264-1275 |
| Popis: | In the present study, Titanate Nano Tubes (TNT) were synthesised by hydrothermal method and functionalised with quaternary ammonium group via chloromethylation followed by amination. Quaternary ammonium functionalised TNT (QTNT) were characterized by FTIR, solid state CP/MAS 13C and CP/MAS 29Si for their successful chemical modification and their nano tube morphology was confirmed by XRD, SEM and TEM analyses. The synthesised QTNT was then incorporated into Quaternary ammonium functionalised Polysulfone (QPSU) at various wt% (1, 3, 5 and 7) to form high density ion exchange (OH−) composite membranes. The morphology of the synthesised membranes were also characterized by SEM and XRD. Additionally, the membranes were tested for water uptake, Ion Exchange Capacity (IEC) and hydroxyl conductivity with respect to alkaline fuel cell application. The Membrane Electrode Assembly (MEA) consisting of Pt anode, Ag cathode and various QTNT composite membranes were fabricated and tested in an in-house built fuel cell setup. From the performance study, it was inferred that the membrane with 5% QTNT showed the maximum power density of 285 mW/cm2 at 60 °C. The experimental results corroborate that addition of QTNT has the propensity to increase the performance of the anion exchange membrane significantly. Keywords: Functionalised titanate nanotubes, Anion exchange filler, Anion exchange membrane, Composite anion exchange membrane, Alkaline fuel cell performance |
| Databáze: | OpenAIRE |
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