The solar-driven conversion of captured CO2 (in TEA/H2O and NaOH/EG solutions, using concentrated stream) was then explored in a two-compartment cell. A photocathode was prepared for this purpose by interfacing the CoPcNH2@MWCNT catalyst with a triple cation lead halide perovskite (PVK) photoabsorber using a conducting graphite epoxy paste (PVK|CoPcNH2@MWCNT, Methods). The PVK has optimal bandgap (1.6-1.7 eV) to absorb broad-range of the solar spectrum (360-750 nm), and provides high open-circuit photovoltage (~1.1 V) to efficiently drive both half-reactions. A bimetallic Cu26Pd74 alloy electrodeposited on Ni foam substrate (Ni foam|Cu26Pd74, see Methods) was used as anode (Figure ), which facilitates alcohol oxidation under alkaline conditions. Operating conditions of the two-electrode PEC setup without external bias was determined from the overlap of individual CV curves of PVK|CoPcNH2@MWCNT photocathode (taken under 1 sun, AM 1.5G irradiation) and Ni foam|Cu26Pd74 anode (taken under 'dark' conditions) in threeelectrode configuration (Figures ). The overlap potentials (Voverlap) were 0.52 V vs. RHE and -0.85 V vs. Fc/Fc + in the TEA/H2O and NaOH/EG medium, with overlap current densities of 5.8 mA cm -2 and 0.27 mA cm -2 , respectively (Figures and). Accounting for the open circuit voltage (VOC) of the PVK devices (~1.05±0.03 V, Figure ), the potential experienced by CoPcNH2@MWCNT catalyst in the two-electrode setup without any external voltage is around -0.53 V vs. RHE and -1.9 V vs. Fc/Fc + in the TEA/H2O and NaOH/EG medium, respectively (calculated as Voverlap-VOC). Electrochemical analyses at these potentials confirmed activity of the CoPcNH2@MWCNT catalyst towards captured CO2 conversion (Figures ).