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Table 5 Retention rates from chronoamperometric curves

From: TiO2 Nanotube-Carbon (TNT-C) as Support for Pt-based Catalyst for High Methanol Oxidation Reaction in Direct Methanol Fuel Cell

Sample

j i (mA/cm2)

j f (mA/cm2)

Ratio j f/j i

Retention rates (%)

A

1.31

0.24

0.18

18

B

0.23

0.024

0.10

10

C

0.036

1.33 × 10−4

0.0037

0.37

D

0.068

2.3 × 10−4

0.0034

0.34

  1. [A]: Pt-Ru/TNT/C, [B]: Pt/TNT/C, [C]: Pt-Ru/C, [D]: Pt/TiO2 nanoparticles. The current density was normalised by EASA of Pt and Pt-Ru
  2. j i initial current density, j f final current density
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