Corrigendum to “Mixed oxides of sodium, antimony (5+) and divalent metals (Ni, Co, Zn or Mg)” [J. Solid State Chem. 183 (2010) 684–691]

A New Family of Fast Sodium Ion Conductors: Na2M2TeO6 (M = Ni, Co, Zn, Mg)

“…It is worth noting that no such difference in lattice parameters was observed with Na 3 Co 2 SbO 6 prepared in nitrogen 23 and air. 27 The same two superstructure types were found for Na 2 MMn 2 -O 6 , 6 but the role of M cations was exactly opposite: M = Mg gave rise to the P6 3 /mcm superstructure, whereas the superstructure with M = Ni, although not refined completely, was better described by the P6 3 22 model. Factors affecting formation of one variant or other are not clear yet.…”

“…With a slightly lower difference of 3, disordered arrangement was observed for Cr 3þ /Te 6þ in the pyrochlore structure, 26 for Li þ / Ti 4þ and M 2þ /Sb 5þ in the P2-type (see above), whereas in the structurally related O3-type, both ordered and disordered arrangements of Li þ /Ti 4þ and M 2þ /Sb 5þ were observed, depending on their atomic ratio. 13,27 Note that the ionic radii 28 difference for ordered Ni 2þ /Te 6þ (0.13 Å) is slightly lower than those for disordered Co 2þ /Sb 5þ (0.145 Å) and Li þ /Ti 4þ (0.155 Å). On the other hand, slightly greater radii differences of 0.16-0.19 Å results in Ni 2þ /Mn 4þ and Mg 2þ /Mn 4þ ordering in Na 2 M 2þ -Mn 2 O 6 6…”

Tuning Sodium Ion Conductivity in the Layered Honeycomb Oxide Na3–xSn2–xSbxNaO6

“…We note that it is possible for the decrease in conductivity observed for x > 0.8 to be due to the presence of the second polytype; however, in past work, P2 polytype materials of the NaFeO 2 type have been shown to have higher rather than lower conductivity compared to that of O3 polytype materials. 26,43 Thus, the 2H-like polytype is not likely to cause the decreased conductivity seen at x > 0.8.…”