Table 1 Catalytic properties of relevant metal oxide materials for OER

From: Balancing activity, stability and conductivity of nanoporous core-shell iridium/iridium oxide oxygen evolution catalysts

Material

ECSA/cm2

Activitya(J)/mA cmgeo −2

Specific Activitya/mA cm−2

Dissolutiona(S)/ppb h−1

Activity-Stability Factor (×103)a

Ir-poly

0.91

0.04

0.013

0.57

0.71

dtf-Ir25Os75

45.66

2.10

0.013

1.03

20.67

dnp-Ir50Os50

52.51

3.34

0.018

1.82

18.60

dtf-Ir50Ru50

1.84

0.32

0.049

2.96

1.09

Ru-poly

3.16

3.23

0.289

178.0b

0.18

dtf-Ru25Os75

46.54

18.75

0.114

399.9b

0.48

  1. aObtained at a constant overpotential of 0.25 V
  2. bDetermined for Ru dissolution
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