Research Article
Low-Temperature Transformations of Protonic Forms of Layered Complex Oxides HLnTiO4 and H2Ln2Ti3O10 (Ln = La, Nd)
Figure 4
X-ray powder patterns: (a) K2La2Ti3O10 + 10x excess of HCl (0.1 M), 24 h; (b) K2La2Ti3O10 + 5.5x excess of HCl (2 M), 5d (H2La2Ti3O10 (rhombus), La2/3TiO3 (star)); (c) K2La2Ti3O10 + 10x excess of HCl (0.1 M), 5d; (d) K2Nd2Ti3O10 + 10x excess of HCl (0.1 M), 24 h; (i) K2Nd2Ti3O10 + 5.5x excess of HCl (2 M), 5d, (H2Nd2Ti3O10 (rhombus), Nd2/3TiO3 (star)); (f) K2Nd2Ti3O10 + 10x excess of HCl (0.1 M), 5d.
