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This paper proposes a high reaction area (HRA) electrode with finely dispersed electrocatalysts supported on carbon nanotubes (CNTs) for high performance micro direct methanol fuel cell (μDMFC). Ionomer Nafion® loading by spin-coating on the catalysts was in-detail investigated for performance enhancement in anodic half-cell. In terms of electrochemical surface area (ESA) and charge transfer resistance...
Pt is one of the most employed catalysts for methanol catalysis in direct methanol fuel cell (DMFC). In this study, carbon nanotube (CNT) surface was used for catalyst reduction. By using ethylene glycol as a reducing agent, Pt catalyst precursor (H2PtCl6 · 6H2O) was reduced on the CNTs by a novel method called semi-reflux chemical reduction system (SRCRS). The SRCRS can effectively reduce the catalyst...
This paper proposes a high surface area of reaction and three-phase zone electrode for micro direct methanol fuel cell (μDMFC) with nano structured carbon nanotubes (CNTs) and Nafion® for the utilization of catalysts. Dense and uniform growth of CNTs on the surface of Si plate can increase the reaction area by 2 orders of magnitude than plain Si plate. Pt nanoparticles deposited on CNTs by chemical...
A fuel cell (FC) generates electricity by chemical reactions. The catalyst dispersion in Membrane electrode assembly (MEA) is a crucial factor among various factors to affect the performance of a FC. A novel grafting method is adopted in this study to grow secondary carbon nano-tubes (CNTs) on a substrate comprised of primary CNTs, in order to form branchy CNTs with higher specific surface area (SSA)...
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