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. 2018 Feb 14;4(2):260–267. doi: 10.1021/acscentsci.7b00569

Figure 4.

Figure 4

Flame-retardant mechanism and post-mortem analysis of the electrodes after burning. (a) Chemical reaction for flame-retardant mechanism. (b) XPS spectra of the surface chemical composition of the S-APP electrode before and after burning. (c) S 2p XPS spectra of the S-PVDF electrode before and after burning. (d) SEM image and the corresponding (e) sulfur and (f) phosphorus elemental maps of the S-APP electrode after burning. (g) EDS of the S-APP electrode after burning. (h) SEM image and the corresponding (i) sulfur and (j) fluorine elemental maps of the S-PVDF electrode after burning. (k) EDS of the S-PVDF electrode after burning.