Hydrogen-Based Reduction Boosts Sustainable Iron Production from Red Mud
Hydrogen-Based Reduction Boosts Sustainable Iron Production from Red Mud
研究概述
研究内容请参见论文原文。
谱图与表征信息
Figure 3. Characterization of the red mud irradiated by hydrogen plasma and the mechanism of iron extraction. (a,b) Morphology and element distribution of the initial red mud (a) and the reduced sample (b). The white arrows point to the Fe-rich region, showing the formation of pure iron. Scale bars, 1 μm. (c) XPS analysis of the initial red mud and reduced sample. (d) Normalized XANES spectra of the Fe K-edge for the reduced sample, Fe3O4, Fe2O3, and Fe foil. (e) Fitted valence states of Fe for the reduced product, Fe3O4, Fe2O3, and Fe foil. (f) FT-EXAFS of the Fe K-edge for product, Fe3O4, Fe2O3, and Fe foil. (g) Mechanism of Fe extraction from red mud using plasma-enhanced hydrogen vapor reduction.