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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: NiCo2S4@NiMoO4 Core-Shell Heterostructure Nanotube Arrays Grown on Ni Foam as a Binder-Free Electrode Displayed High Electrochemical Performance with High Capacity

Fig. 3

SEM images for NiCo2S4/NF (a–c) and NiCo2S4@NiMoO4/NF (d–f) at different magnifications. g TEM images of an individual NiCo2S4 nanotube detached from Ni foam; the above inset is the corresponding HRTEM image of a single nanotube. h TEM images and i HRTEM images of an individual NiCo2S4@NiMoO4 core-shell structure

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