RESEARCH / A0363
Combined intercalation and space-charge mechanism enabled highcapacity, ultrafast and long-lifespan sodium-ion storage for chalcogenides anodes
Read the original paper · 10.1039/d4ee03217a ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Fig. 1 Spontaneous co-intercalation of Cu and ether into NbS2. (a) and (b) XRD patterns and Rietveld refinement of NbS2 and Cux(DME)nNbS2. The inset shows HRTEM images of NbS2 and Cux(DME)nNbS2. (c) XANES at the Cu K-edge for Cux(DME)nNbS2 and corresponding reference samples. (d) FTIR spectrum of the NbS2 electrode after assembly into half cells with different electrolytes. (e) HAADF-STEM image of Cux(DME)nNbS2 along a/b-axes. The inset on the right shows the atom intensity profiles. (f) Schematic illustration.