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Cited by 39 publications
(22 citation statements)
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“…This lattice shrinkage is gradually enhanced (Figure 2a Figure 2c and Figure S2d. Such shape change has been observed in other nanostructures [37] with FCC structure, indicating a surface energy change of the PbTe nanocubes caused by the heavy Bi doping [37]. TEM investigation was employed to characterize the crystal structure of as-synthesised samples.…”
Section: Introductionmentioning
confidence: 82%
“…This lattice shrinkage is gradually enhanced (Figure 2a Figure 2c and Figure S2d. Such shape change has been observed in other nanostructures [37] with FCC structure, indicating a surface energy change of the PbTe nanocubes caused by the heavy Bi doping [37]. TEM investigation was employed to characterize the crystal structure of as-synthesised samples.…”
Section: Introductionmentioning
confidence: 82%
“…The calculated x value of octahedrally-shaped one with 70 vol% Cu content at a C/Ti molar ratio of 0.4 was 0.62, respectively. Accordingly, the structure of TiC x for cube-shaped TiC x with an x value of about 1.0 and octahedrally-shaped TiC x with an x value about 0.625 was established to explain how the concentration affects the shape of in situ TiC x according to the 64-atom supercell with different stoichiometries [33]. As shown in Figure 7, the C atom vacancies appeared with the decrease of the x value.…”
Section: Resultsmentioning
confidence: 95%
“…According to a previous study, the shape of TiC x particles is mainly decided by the post-nucleation growth rates of different crystal planes [33,34]. When the {100} surfaces grows faster than that of the {111} surfaces, the shape of TiC x particles is octahedral; otherwise, the shape is cubic.…”
Section: Introductionmentioning
confidence: 99%
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“…According to the viewpoint of Zhou [ 33 ] et al, the x value of TiC x in substoichiometric analysis corresponding to cubic and spherical TiC x were 0.875 and 0.625, which means that a part of Ti was residual except for the formation of TiC x ; besides, residual Ti is more in spherical-TiC x /Cu composites than that in cubic-TiC x /Cu composites on the basis of the substoichiometric analysis. According to Bragg’s law (λ = 2dsinθ), the substitution of Ti for Cu leads to the expansion of the lattice (shift to low angle), since the atomic radius Ti is bigger than that of Cu atoms in Cu lattices, causing the diffraction peaks to shift to a lower angle.…”
Section: Resultsmentioning
confidence: 99%