Accelerating Proton-supplying via Customizing Diatomic Sites for Boosted Electrochemical CO2 Reduction Activity
Accelerating Proton-supplying via Customizing Diatomic Sites for Boosted Electrochemical CO2 Reduction Activity
研究概述
研究内容请参见论文原文。
谱图与表征信息
Fig. 2. Electronic valence state and fine structures. Normalized XANES χ(E) spectra of Ni (a) and Mn (b) on NiMn-SNC. (c, d) Radial distance χ(R) space spectra of Ni (c) and Mn (d)on NiMn-SNC. (e) WT plots of NiMn-SNC, Mn foil and Ni foil. (f, g) EXAFS fitting of NiMn-SNC in R space at Ni K-edge (f) and Mn K-edge (g). (h) Structure model of the NiMn-SNC (Mn in green, Ni in blue, N in silvery, S in yellow, and C in gray).
Fig. 4. Protonation process investigations. (a-c) In-situ ATR-SEIRAS spectra of NiMn-SNC, Ni-SNC and Mn-SNC. (d, e) Plots of potential against wavenumbers in the water and CO adsorption in ATR-SEIRAS spectra for CO2RR over different samples. (f) Fitted average oxidation states of Ni from XANES spectra. (g) Ni R-space EXAFS spectra of NiMn-SNC recorded at different cathodic potentials during CO2RR. (h) Mechanism of Ni–Mn diatomic sites synergistically accelerating PCET process in CO2RR.