TY - JOUR
T1 - Structural change in a series of protonated layered perovskite compounds, HLnTiO4 (Ln=La, Nd and Y)
AU - Nishimoto, Shunsuke
AU - Matsuda, Motohide
AU - Harjo, Stefanus
AU - Hoshikawa, Akinori
AU - Kamiyama, Takashi
AU - Ishigaki, Toru
AU - Miyake, Michihiro
N1 - Funding Information:
We thank Dr. F. Izumi of National Institute for Materials Science in Japan for kindly supplying RIETAN-TN program. This work was partly supported by The Okayama University 21st Century COE Program “Strategic Solid Waste Management of sustainable Society”.
PY - 2006/6
Y1 - 2006/6
N2 - A deuterated n=1 Ruddlesden-Popper compound, DLnTiO4 (HLnTiO4, Ln=La, Nd and Y), was prepared by an ion-exchange reaction of Na+ ions in NaLnTiO4 with D+ ions, and its structure was analyzed by Rietveld method using powder neutron diffraction data. The structure analyses showed that DLaTiO4 and DNdTiO4 crystallized in the space group P 4 / nmm with a=3.7232(1) and c=12.3088(1) Å, and a=3.7039(1) and c=12.0883(1) Å, respectively. On the other hand, DYTiO4 crystallized in the space group P 21 / c with a=11.460(1), b=5.2920(4), c=5.3628(5) Å and β=90.441(9)°. The loaded protons were found to statistically occupy the sites around an apical oxygen of TiO6 octahedron in the interlayer of these compounds, rather than Na atom sites in NaLnTiO4.
AB - A deuterated n=1 Ruddlesden-Popper compound, DLnTiO4 (HLnTiO4, Ln=La, Nd and Y), was prepared by an ion-exchange reaction of Na+ ions in NaLnTiO4 with D+ ions, and its structure was analyzed by Rietveld method using powder neutron diffraction data. The structure analyses showed that DLaTiO4 and DNdTiO4 crystallized in the space group P 4 / nmm with a=3.7232(1) and c=12.3088(1) Å, and a=3.7039(1) and c=12.0883(1) Å, respectively. On the other hand, DYTiO4 crystallized in the space group P 21 / c with a=11.460(1), b=5.2920(4), c=5.3628(5) Å and β=90.441(9)°. The loaded protons were found to statistically occupy the sites around an apical oxygen of TiO6 octahedron in the interlayer of these compounds, rather than Na atom sites in NaLnTiO4.
KW - Crystal structure
KW - Ion-exchange
KW - Layered perovskite
KW - Neutron diffraction
KW - Ruddlesden-Popper phase
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U2 - 10.1016/j.jssc.2006.03.015
DO - 10.1016/j.jssc.2006.03.015
M3 - Article
AN - SCOPUS:33747098902
SN - 0022-4596
VL - 179
SP - 1892
EP - 1897
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 6
ER -