title: Accordion-like swelling of layered perovskite crystals via massive permeation of aqueous solutions into 2D oxide galleries.
abstract: Platelet crystals of a layered perovskite showed massive accordion-like swelling in a tetrabutylammonium hydroxide solution. The permeation of the solution induced the huge expansion of the interlayer spacing as well as the crystal thickness up to 50-fold, leading to a very high water content of >90 wt%.
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp and Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: Yeji
authors.initials: Y
authors.lastname: Song
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp.
authors.forename: Nobuo
authors.initials: N
authors.lastname: Iyi
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp.
authors.forename: Tatsumasa
authors.initials: T
authors.lastname: Hoshide
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp.
authors.forename: Tadashi C
authors.initials: TC
authors.lastname: Ozawa
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp.
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Ebina
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp.
authors.forename: Renzhi
authors.initials: R
authors.lastname: Ma
authors.affiliation: Department of Life, Environment and Materials Science, Fukuoka Institute of Technology, 3-30-1 Wajiro-higashi, Higashi-ku, Fukuoka 811-0295, Japan.
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Miyamoto
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp and Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Sasaki