Tandem Topotactic Reactions for Low-Temperature Synthesis of Ni-Rich Layered Oxide Cathodes without Anti-site Defect
Tandem Topotactic Reactions for Low-Temperature Synthesis of Ni-Rich Layered Oxide Cathodes without Anti-site Defect
研究概述
研究内容请参见论文原文。
谱图与表征信息
Figure 3. Tracking Ni chemical evolution. (a) Schematic diagram of Ni valence changes within NiO6 octahedron during topotactic synthesis. (b) XANES spectra of the hydroxide precursor NCMOH, the oxyhydroxide intermediate NCMOOH, LS-NCM and HS-NCM. (c) sXAS spectra of NCMOH, NCMOOH and LS-NCM. The average valence state of Ni was determined for each spectrum through linear combination fitting (Figure S19) and labeled at the center of the spectrum. (d,e) In-depth XPS analysis of (d) LS-NCM and (e) HS-NCM. (f) Corresponding Ni3+ percentages as a function of etching time of LS-NCM and HS-NCM.