Fig. 2: Morphology characterization of B-MoSe2, U-MoSe2, and F-MoSe2.
From: Biaxial strain induced OH engineer for accelerating alkaline hydrogen evolution
a–c TEM images under different magnifications. The inset in c is the scheme of B-MoSe2. d Aberration-corrected HAADF-STEM image of B-MoSe2. The inset is the FFT image. e Aberration-corrected HAADF-STEM image from cross-sectional view. f GPA analysis for (d). The change from blue to red in color scale indicates the gradually change from compressive to tensile strain. g STEM and corresponding EDS elemental mapping images. TEM, aberration-corrected HAADF-STEM image, and scheme of (h, i) U-MoSe2 and (j, k) F-MoSe2. The bule and yellow spheres in (d, e, i, k) indicate Mo and Se atoms, respectively. The yellow dash circle is Se vacancy.
