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. 2022 Apr 4;12:5640. doi: 10.1038/s41598-022-09684-x

Figure 2.

Figure 2

Raman spectra of selected sample spots where elemental sulfur was detected and its relationship with temperature. At the bottom, the sulfur Raman spectra from the RRUFF database are shown to compare and identify the shifts of the vibrational modes of sulfur according to the increase in temperature. For sample naming codes see Supplementary Table S1 online.