✍ Scribed by Takayoshi Sasaki; Fathi Kooli; Masaki Iida; Yuichi Michiue; Satoshi Takenouchi; Yoshiyuki Yajima; Fujio Izumi; Bryan C. Chakoumakos; Mamoru Watanabe
No coin nor oath required. For personal study only.
1999 structure structure (solids and liquids) D 2000 10 -002 A Mixed Alkali Metal Titanate with the Lepidocrocite-Like Layered Structure. Preparation, Crystal Structure, Protonic Form, and Acid-Base Intercalation Properties. -The titanates K 0.80 Ti 1.73 Li 0.27 O 4 , Rb 0.75 Ti 1.75 Li 0.25 O 4 , and Cs 0.70 Ti 1.77 Li 0.23 O 4 are prepared by solid state reaction of M 2 CO 3 (M: K, Rb, Cs), Li 2 CO 3 , and TiO 2 (1073 K, 30 min) followed by calcination (1073-1373 K, 20 h). Neutron diffraction data confirm that the orthorhombic structure (space group Cmcm) is comprised of lepidocrocite-related host layers of Ti 2-x/3 Li x/3 O 4 and charge-balancing M + ions in the interlayer domain. Complete extraction of both alkali metal ions is achieved by acid leaching, producing a new protonic titanate of composition H 4x/3 Ti 2-x/3 O 4 •H 2 O. -(SASAKI, TAKAYOSHI; KOOLI, FATHI;
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