CO2‐Mediated Dynamic Site Modulation in Copper Catalysts for Selective Electrocatalytic Nitrite‐to‐Ammonia Conversion
CO2‐Mediated Dynamic Site Modulation in Copper Catalysts for Selective Electrocatalytic Nitrite‐to‐Ammonia Conversion
研究概述
研究内容请参见论文原文。
谱图与表征信息
Figure 2. XAS and XPS analyses of the chemical valence state and coordination structure of the synthesized catalysts. a) and b) XANES spectra, and c) Fourier–transformed Cu K–edge EXAFS spectra of Cu–N4C, Cu–N4C/Cux, Cu–NPs, Cu foil, and Cu PC. Model–based fittings of Cu EXAFS for d) Cu–N4C, e) Cu–N4C/Cux, and f) Cu–NPs, with corresponding magnified local structures shown in the insets. g) Cu K–edge WT–EXAFS analyses of Cu–N4C, Cu–N4C/Cux, and Cu–NPs. XPS spectra of h) Cu 2p and i) N 1s for Cu–N4C, Cu–N4C/Cux, and Cu–NPs.