Figure 3.

Morphologies and crystal structures of Ni_xCo_1-xMoO₄ nanowires. (a-e) FE-SEM images of Ni_xCo_1-xMoO₄ nanowires with various x values and (f) their corresponding X-ray diffraction patterns. Filled circle, empty circle, filled inverted triangle, and empty inverted triangle correspond to α-CoMoO₄, β-CoMoO₄, α-NiMoO₄, and β-NiMoO₄, respectively (by KS Park et al.).