Figure 2

Wide-viewed TEM image (a), HR-TEM image of one single particle (a: inset), STEM-HAADF image of one single particle (b), point-by-point EDX scanning of one single particle (c), high energy resolution XPS for Al (d), high energy resolution XPS for Fe (e) and XRD (f) of FeAl@Al(1-x)FexOy nanohybrids synthesized using all NMP-phased reaction systems at a resident time of 0.73 ~ 0.88 s in microfluidic channel and 20 min in the cooling receiver.
Right-bottom inset in Fig. 2a is the NPs solution. JCPDS No for XRD analysis: bcc Fe, 6-0696; α-Al2O3, 46-1212; γ-Al2O3, 10-0425. In XRD (f), : the corresponding metallic phases; *: the corresponding metal oxides.