Fig. 6
From: Interfacial water engineering for enhanced pure water electrolysis

(a) Schematic representation of SOW electrolyzer (b) Polarization curve of PEO-Pt/Ti||PEO-Pt/Ti before and after 1000 cycles. (c) Cell voltage comparison of reported catalyst at 100 mA/cm−2 (d) Volume of produced hydrogen in SOW electrolyzer at 3.5 V (e) Volume of produced hydrogen in bulk water electrolyzer at 3.5 V.