Enhancing CO2RR performance of 3D printed, Cu-complex catalytic-electrode via suppressing HER with hydrophobic ion pairs
Enhancing CO2RR performance of 3D printed, Cu-complex catalytic-electrode via suppressing HER with hydrophobic ion pairs
研究概述
在三维打印Cu–N4配合物电极中引入BPh4−/PPh4+疏水离子对，抑制析氢竞争并促进CO2还原制CO。在−0.7 V下CO法拉第效率94.3%，稳定运行12小时。
谱图与表征信息
Fig. 5. XRD patterns (a) and Raman spectra (b) of CuN/B-P+-3DCE, CuN-3DCE and Cu/B-P+-3DCE; XANES characterization of CuN/B-P+-3DCE (c) and their firstorder derivatives (d). Inset: The enlargement of main edges (c). Fourier-transformed (FT) Cu K-edge EXAFS spectra of CuN/B-P+-3DCE, with fitting curve included (e); Cu K-edge FT-EXAFS spectra (f). The Cu foil, Cu2O, CuPc, CuO and CuN/B-P+-3DCE after electrolysis were used as references.
Fig. 6. WT-EXAFS of the a) Cu foil, b) Cu2O, c) CuO, d) CuPc, e) Cu/B-P+-3DCE and f) Cu/B-P+-3DCE after 12 h electrolysis at - 0.7 V.