Defect-driven accelerated structural reconstruction of Ni-MOF for efficient water oxidation
Defect-driven accelerated structural reconstruction of Ni-MOF for efficient water oxidation
研究概述
采用配位竞争策略，在剥离石墨上构筑缺陷Ni-BDC/MeIM纳米片，利用MeIM刻蚀产生的空位加快向缺陷丰富NiOOH重构。析氧在10及100 mA/cm²下过电位分别240和286 mV；计算表明空位提升Ni d带中心，改变限速步骤并加快反应。
谱图与表征信息
Fig. 3. (a) EPR spectra of Ni-BDC and Ni-BDC/MeIM. (b) Ni K-edge XANES spectra and (c) FT-EXAFS spectra in R-space of Ni foil, NiO, NiPc, Ni-BDC, and Ni-BDC/ MeIM. Inset: local structure model of Ni-BDC/MeIM. Color legend for atoms: gray, C; blue, N; red, O; white, H; cyan, Ni. WT contour plots of (d) Ni foil, (e) NiO, (f) Ni-BDC, and (g) Ni-BDC/MeIM.