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Structural, electrochemical, and kinetic characterization of NPSC, Sn0.1@NPC, and Sn0.1@NPSC electrodes. XPS data of a) Sn 3d, b) P 2p, c) S 2p, and d) N 1s spectra, e) pseudocapacitive contribution, Na+ diffusion coefficients during sodiation f) and desodiation g), the value of R SEI h) and i) R ct of the different electrode after different number of cycles.
