Performance increase of microfluidic formic acid fuel cell using Pd/MWCNTs as catalyst
✍ Scribed by D. Morales-Acosta; H. Rodríguez G.; Luis A. Godinez; L.G. Arriaga
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 528 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0378-7753
No coin nor oath required. For personal study only.
✦ Synopsis
This paper shows that the combination of an O 2 saturated acidic fluid setup (O 2 -setup) and a composite of Pd nanoparticles supported on multiwalled-carbon nanotubes (Pd/MWCNTs) as anode catalyst material, results in the improvement of microfluidic fuel cell performance. Microfluidic fuel cells were constructed and evaluated at low HCOOH concentrations (0.1 and 0.5 M) using Pd/V XC-72 and Pd/MWCNTs as anode and Pt/V XC-72 as cathode electrode materials, respectively. The results show a higher power density (2.9 mW cm -2 ) for this cell when compared to the value reported in the literature that considers a commercial Pd/V XC-72 and 3.3 mW cm -2 using a Pd/MWCNTs with a 50% less Pd loading than that commercial Pd/V XC-72.
📜 SIMILAR VOLUMES
Pd nanoparticles supported on the WO 3 /C hybrid are prepared by a two-step procedure and the catalysts are studied for the electrooxidation of formic acid. For the purpose of comparison, phosphotungstic acid (PWA) and sodium tungstate are used as the precursor of WO 3 . Both the Pd-WO 3 /C catalyst
In order to improve the catalytic activity and stability of the anodic Pd catalyst for a direct formic acid fuel cell, vanadium ions in very low concentration were introduced to the electrolyte. It was discovered that the electrooxidation of formic acid could be promoted greatly by addition of trace