Zn-MOF Derived Zn-N-C as anode material for lithium/sodium ion batteries: Experiments and density functional theory calculations
Zn-MOF Derived Zn-N-C as anode material for lithium/sodium ion batteries: Experiments and density functional theory calculations
研究概述
结合微通道合成和碳浴热解，在无需惰性气体保护条件下制备Zn–N–C储能材料。800℃样品具有原子分散Zn–N4类环境和约0.36 nm层间距，改善离子传输及赝电容贡献；锂、钠体系可逆容量分别约700和186 mAh/g。
谱图与表征信息
Fig. 2. (a) Zn K-edge XANES and (b) EXAFS spectra of Zn-N-C-800, Zn-N-C-900 and reference samples (ZnO and Zn foil); (c) WT of Zn-N-C-800; (d) Corresponding fitted EXAFS curves at the Zn K edge of Zn-N-C-800; (e) K-space oscillations of coordination atom; (f) XPS survey scans of Zn-N-C-800 and Zn-N-C-900; (g) Highresolution C 1 s spectra; (h) High-resolution N 1 s spectra; (i) High-resolution Zn 2p spectra.