Fig. 2: Three-electrode PEC-CO2RR operation under AM 1.5 G illumination with CO2Rcat||3-J|Ni/RuOx PEC device.
From: Unassisted photoelectrochemical CO2-to-liquid fuel splitting over 12% solar conversion efficiency
a Current–voltage characteristics of 3-J photoanode with electrochemically activated currents: anodic RuOx with Ag/AgCl Reference Electrode and cathodic Sn-Bi2O3 NCs catalyst in the dark. b Calculated FE% (left-hand axis) and obtained HCOOH and H2 production rates (right-hand axis) with Sn-Bi2O3 NCs cathode. The error bars indicate the results from ten individual tests. c Quantified Electrical Energy efficiency (ηEE%, right-hand axis) and operating photovoltages (left-hand axis) during 100 h of PEC-CO2RR with 3-J photoanode and Sn-Bi2O3 cathode. d ηSTF% of the cathodic products (right-hand axis) with the operating anodic photocurrent density (left-hand axis) during 100 h of PEC-CO2RR using 3-J photoanode and Sn-Bi2O3 cathode. The setup recorded 2.14 ± 0.013 Ω resistance, and cell voltage readings have not been iR-corrected.
