Figure 2 shows the XRD patterns of the charred product of Sn-sugar composite and that after heating at 400 • C for 4 h, in comparison with that of the pure Sn powders. The sharp diffraction...

In situ X-ray diffraction (XRD) was performed to study the formation of the α-Sn structure in nanocrystalline Sn-based electrodes during electrochemical lithium insertion and extraction at room temperature. Therefore, pure β-Sn nanoparticles were synthesised and …

2022年4月5日 · Here, we grow compressively strained α -Sn doped with 2-4 at.% germanium on a native oxide layer on a silicon substrate at 300–500 ∘ C. Growth is found to occur by a reversed β -Sn to α -Sn...

2025年1月1日 · In this study, we demonstrate the synthesis of beta tin (β-Sn) through monochromatic X-ray induced decomposition of tin oxalate (Sn 2 C 2 O 4) under ambient conditions, utilizing XRD and Raman spectroscopy for characterization. At moderate pressure of 0.6 GPa, the higher transformation yield (TY) of the decomposition reaction is observed ...

2020年11月25日 · The crystal structures of SnO@C, Sn/SnO@C and Sn@C composites were examined by XRD, and compared with the standard of SnO (JCPDS 06–0395) and Sn (JCPDS 04–0673), as shown in Fig. 1. No diffraction peaks derived from impurities were detected in the two composites of SnO@C and Sn@C except for the peaks of SnO and Sn, respectively.

2022年5月5日 · A comparison of the X-ray diffraction (XRD) patterns of the Sn–Bi bimetallic interface and Sn–Bi alloy is displayed in Fig. 3a. The XRD pattern of the Sn–Bi bimetallic interface matches...

We developed novel zinc-cadmium-bismuth sulfide (Zn-Cd-Bi2S3) and Zn-Cd-SnS nanocomposites to fabricate a heterojunction by an easy chemical technique to improve photocatalytic degradation of...

2 天之前 · Figure 2(a) shows the X-ray diffraction (XRD) patterns of three samples. An extremely wide diffraction peak was detected at 28° in Y1 and Y2, indicating the poor grain development and amorphous state of these samples. ... The Sn-O-Sn bond exhibited asymmetric stretching and bending vibrations at approximately 656 cm − 1, ...

As illustrated in Fig. S2, close inspection of the XRD patterns of Sn-MFI displays a negative shift to lower 2θ values (corresponding to higher d-values) compared with Si-MFI and Al-MFI, suggesting the expansion of lattice of Sn-MFI zeolite owing to the substitution of framework Si atoms (atomic radius = 1.17 Å) by the larger Sn atom (atomic ...

The selenization mechanism of Sn and Zn thin films was investigated by in situ high-temperature X-ray diffraction analysis of glass/Mo/Sn(/Se) and glass/Mo/Zn(/Se) precursors. The Sn and Zn layers were deposited by sputtering, and amorphous Se layer was added by evaporation. Based on the results of isothermal reactions at different set temperatures, the kinetic parameters for the ...