Understanding the Role of Spin State in Cobalt Oxyhydroxides for Water Oxidation
Understanding the Role of Spin State in Cobalt Oxyhydroxides for Water Oxidation
研究概述
研究内容请参见论文原文。
谱图与表征信息
Figure 2. Spin structure survey of as-prepared CoMOOH electrocatalysts. (a) Temperature dependence inverse susceptibilities for CoMOOH samples. The dotted lines are the fitting results by a Curie– Weiss law. (b) The corresponding eg occupation. (c–d) Co L-edge XAS spectra of CoMOOH electrocatalysts.
Figure 3. Structural investigation of CoMnOOH with intermediate spin state. (a) TEM image, (b–d) high-resolution HAADF-STEM images and (e) TEM-EDS mappings of CoMnOOH. (f) Normalized Co K-edge XANES, (g) Co K-edge EXAFS of CoMnOOH and corresponding references. (h) curve fitting of CoMnOOH. (i, j) Wavelet transform of Co K-edge EXAFS data of (i) CoOOH and (j) CoMnOOH.
Figure 5. Survey of the “eg occupation-active sites formation” relationship in CoMOOH. (a) Normalized Co K-edge XANES spectra of CoMOOH. (b) Corresponding white line intensity. (c) Illustration of the d-orbital energy regulation and *O Co(IV) formation via elongated distortion. (d) dband center of dxy orbital and dz