“…In addition, the C 1s spectra were also analyzed by XPS Fitting software to quantitatively study the chemical components of EP and fluorinated EP, and the details are shown in Figure S1 in the Supporting Information. For the pristine EP in Figure S1a, five chemical groups, including C–C/C–H, CC, C–O, CO, and O–CO are used to fit the C 1s spectra. − According to the FTIR spectra, for the fluorinated EP, apart from the above-mentioned five groups in pristine EP, three groups, including CF, CF 2 , and CF 3 are used to fit the C 1s spectra at the high energy area, as seen in Figure S1b–d. Then, based on the fitting results, the content of each chemical group is summarized in Figure h (please refer to Section 1 in the Supporting Information for details).…”