Crystal structure and ion-exchange property of a lepidocrocite-like sodium titanate. Issue 1 (2nd January 2023)

• Record Type: Journal Article
• Authors: Makise, Keito; Takei, Takahiro; Saito, Norio; Yamanaka, Junichi; Kumada, Nobuhiro; Mori, Hiroyoshi; Itoi, Nobuki; Goto, Toshiki
• Is Part Of: Journal of Asian ceramic societies. Volume 11:Issue 1(2023)
• Page Start: 170
• Page End: 177
• Publication Date: 2023-01-02
• Subjects: word -- layered structure -- alkaline titanate -- ion-exchange reaction -- crystal structure; Ceramics -- East Asia -- Periodicals; Materials science -- Periodicals; 620.1405
• DOI: 10.1080/21870764.2023.2173849
• Languages: English
• ISSNs: 2187-0764

Abstract

ABSTRACT: A lepidocrocite-like potassium titanate, (Kx (Lix Ti1-x )O2 ; Lss) with a layered structure can provide a reactive interlayer space for soft-chemical reaction such as ion-exchange or intercalation and the hydrated sodium derivative (Lss-Na) was obtained by an ion-exchange reaction. The crystal structures of the hydrated and dehydrated Lss-Na were refined by using synchrotron powder X-ray diffraction data. Two steps of dehydrated processes for the Lss-Na were observed by in-situ synchrotron powder X-ray diffraction. The ion-exchange property for Lss-Na was superior to those for Lss and Lss-H and was corelated with the effective basal space which was expanded by formation of two layers of water molecules.