图 4. (a) 水解沉积制备Ru/CoFe-LDHs的示意图、(b) Ru/CoFe-LDHs纳米片的透射电镜(TEM)图像、(c) Cs校正的Ru/CoFe-LDHs纳米片的STEM图像和(d) Ru/CoFe-LDHs的高角环形暗场扫描透射电镜(HAADF-STEM)图像及相应的Ni, Fe和Ru元素分布图^[66]

Figure 4. (a) Schematic illustration for the hydrolysis-deposition to form Ru/CoFe-LDHs, (b) transmission electron microscopy (TEM) images of as-prepared Ru/CoFe-LDHs nanosheets (inset shows the corresponding SAED pattern of Ru/CoFe-LDHs nanosheets marked in orange circle), (c) Cs-corrected STEM image of Ru/CoFe-LDHs nanosheets shows the monoatomic ruthenium dispersed on the surface of LDHs (some of the isolated Ru atoms are marked with red circles) and (d) HAADF-STEM images of the Ru/CoFe-LDHs and corresponding elemental distribution maps of Ni, Fe, and Ru in the Ru/CoFe-LDHs^[66]