“…Figure 2ashows the Raman spectra of SCN/ LLZTO at different ratios.T he peaks at 2254 cm À1 corresponding to the nitrile group of SCN are blue-shifted and the shift is increased with the increase of the LLZTO ratio,which illustrates the coordination of nitrile groups with some metal atoms or groups. [22] At the same time the XPS spectrum of LLZTO/SCN displays two sets of La 3d peaks at bonding energy of 853.93, 849.71, 837.13, and 833.01 eV,which shift to low binding energy by about 0.59, 0.44, 0.32, 0.39 eV compared with pure LLZTO( Figure S5). Thec hemical shift denote that coordination has occurred on the La ions in the SCN/LLZTOcomplex.…”