fig6
![Research progress of photoelectrochemical conversion of CO<sub>2</sub> to C<sub>2+</sub> products](https://image.oaes.cc/368d74a6-f7ee-444f-add1-b7e5e89d37c0/cs4003.fig.6.jpg)
Figure 6. (A) Schematic mechanism of Re-doped CuO/TiO2-NTs for CO2 reduction[33]. Copyright 2021 Elsevier; (B) The scheme for product generation of TiO2-NT/GNR-metal electrodes[35]. Copyright 2021 Elsevier; (C) The corresponding CO2 conversion yields of CZTS/CdS (HA) and CZTS/CdS (HN)[34]. Copyright 2021 Wiley; (D) CO2 PEC performance of Pd/R-TiO2/TiN-x[51]. Copyright 2023 Elsevier; (E) Schematic mechanism of EY+S-TiO2@GS for CO2 reduction[47]. Copyright 2020 Elsevier; and (F) Schematic mechanism of CuNx/CuO for the CO2 PEC reduction[38]. Copyright 2022 Elsevier. PEC: Photoelectrochemistry.