Fig. 7: The long-durable stability investigation for OER and PEM in acidic electrolyte. | Nature Communications

Fig. 7: The long-durable stability investigation for OER and PEM in acidic electrolyte.

From: Dopants fixation of Ruthenium for boosting acidic oxygen evolution stability and activity

Fig. 7

a The current-time (500 h) stability of W0.2Er0.1Ru0.7O2−δ nanosheets in 0.5 M H2SO4. b The comparison of stabilities in acidic electrolyte for various electrocatalysts, x-axis stands for the initial ɳ for electrocatalysts reaching 10 mA cm−2, y-axis represents the final ɳ of various electrocatalysts after stability measurement. c ICP analysis for W0.2Er0.1Ru0.7O2−δ after 500 h operation in acidic electrolyte. d Photograph of the employed PEM reaction device. e The current–time (120 h) stability of W0.2Er0.1Ru0.7O2−δ as anodic side in acidic PEM (inset: PEM reaction device, detection of H2).

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