Fig. 4: Application of Pt-S-CNT catalyst in a H-cell electrolysis.
From: Manipulating the oxygen reduction reaction pathway on Pt-coordinated motifs
a Schematic of a home-made H-type electrolyzer. b SEM image of Pt-S-CNT cast carbon fiber paper as working electrode, scale bar: 500 nm. c LSV curves recorded on either pristine or post-electrolysis working electrode within 0.1 M O2-saturated HClO4 at a scan rate of 5 mV s−1, inset shows the contact angles of a same working electrode prior to and post 500-min electrolysis at the scale bar of 1 mm. d The ORR stability test of working electrode potential and H2O2 selectivity under a fixed current density of 10 mA cm−2 for 500 min continuous electrolysis. e The accumulated H2O2 concentration during the stability measurement. The error bars represent two independent samples.
