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CO catalytic oxidation on the two-dimensional (2D) Fe/NX clusters embedded graphene (G) (X = 4, 3, 2, 1) with D4h, C2v, C2h, and CS symmetries is investigated using the first-principle method. Fe/N2-G system with C2h symmetry facilitates the O2 adsorption. The strong interaction between the Fe atom and O2 in Fe/N2-G system can be contributed from the high energy of Fe’s $$d_z^2$$ d z 2 ...
Alumina (Al2O3) nanowires, nanorods, and nanowalls have been prepared from anodic aluminum oxide (AAO) templates by chemical etching in NaOH solution. Heating the template prior to etching is crucial to the morphology of subsequent prepared alumina nanostructures, which greatly depend on the phases of the AAO templates. It has been found that the templates with amorphous Al2O3, γ-Al2O3, and α+γ-Al...
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