Characterization of the single phase region with spinel structure in the ternary system In2S3FeSFeS2

Structural and Local Environment Modifications in a Chemically Lithiated Iron Thiospinel

“…It consists of two paramagnetic quadrupole-split doublets with marked differences in the hyperfine parameters ( Table 2). This result is in good agreement with previous studies (11). First-row transition metal indium sulfides have a partially inverse distribution with the metal ions in both tetrahedral and octahedral sites (8,12).…”

“…The structural fitted parameters are included in Table 1. The unit cell parameter a"10.6076 A s is in good agreement with previously reported data (11). The value of obtained from the refined cation distribution was 0.910, which is close to that previously reported by Hill et al (8), "0.95.…”

“…Thus, the doublet with the larger quadrupole splitting can be unambiguously ascribed to Fe> ions in octahedral 16d sites, while the second doublet in the central part of the spectrum is due to Fe> ions in tetrahedral 8a sites. The larger linewidth of the second subspectrum can be explained by a superposition of several contributions corresponding to different environments of tetrahedral sites (11). From integration of the two doublets, the octahedral-Fe/total-Fe ratio (equivalent to the previously defined ) was found to be 0.93, a value which is close to that obtained from the Rietveld analysis, 0.91.…”

Structural Modifications and Electrochemical Behavior of Lithium-Inserted In16Fe8S32

“…An additional effect is the increase in the quadrupole splitting and line width of the subspectra of the Fe in tetrahedral coordination, indicating that distortion increases and charge distribution symmetry decreases during the insertion process. These phenomena can be explained by the presence of vacancies surrounding the tetrahedrally coordinated Fe atoms (11,12).…”

Role of Cl on Diffusion of Cu in In2S3 Layers Prepared by Ion Layer Gas Reaction Method

“…A third of the tetrahedral cationic sites remain vacant but ordered along 4I screw with alignment of three spinel blocks in c-direction [17]. β-In2S3 can accommodate foreign atoms, for example Fe [18], Ag [19], Cl [20], Cu and Na [10].…”