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Three-Dimensional Visualization of Adsorption Distribution in a Single Crystalline Particle of a Metal-Organic Framework.
Yamada, Emina; Sakamoto, Hirotoshi; Matsui, Hirosuke; Uruga, Tomoya; Sugimoto, Kunihisa; Ha, Minh-Quyet; Dam, Hieu-Chi; Matsuda, Ryotaro; Tada, Mizuki.
Afiliação
  • Yamada E; Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan.
  • Sakamoto H; RIKEN SPring-8 Center, Sayo, Hyogo, 679-5198, Japan.
  • Matsui H; RIKEN SPring-8 Center, Sayo, Hyogo, 679-5198, Japan.
  • Uruga T; Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan.
  • Sugimoto K; Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan.
  • Ha MQ; RIKEN SPring-8 Center, Sayo, Hyogo, 679-5198, Japan.
  • Dam HC; Japan Synchrotron Radiation Research Center (JASRI)/SPring-8, Koto, Sayo, Hyogo 679-5198, Japan.
  • Matsuda R; Japan Synchrotron Radiation Research Center (JASRI)/SPring-8, Koto, Sayo, Hyogo 679-5198, Japan.
  • Tada M; Faculty of Science and Engineering, Graduate School of Science and Engineering, Kindai University, Kowakae. Higashiosaka, Osaka 577-8502, Japan.
J Am Chem Soc ; 146(13): 9181-9190, 2024 Apr 03.
Article em En | MEDLINE | ID: mdl-38528433
ABSTRACT
Many unique adsorption properties of metal-organic frameworks (MOFs) have been revealed by diffraction crystallography, visualizing their vacant and guest-loaded crystal structures at the molecular scale. However, it has been challenging to see the spatial distribution of the adsorption behaviors throughout a single MOF particle in a transient equilibrium state. Here, we report three-dimensional (3D) visualization of molecular adsorption behaviors in a single crystalline particle of a MOF by in situ X-ray absorption fine structure spectroscopy combined with computed tomography for the first time. The 3D maps of water-coordinated Co sites in a 100 µm-scale MOF-74-Co crystal were obtained with 1 µm spatial resolution under several water vapor pressures. Through the visualization of the water vapor adsorption process, 3D spectroimaging revealed the mechanism and spatial heterogeneity of guest adsorption inside a single particle of a crystalline MOF.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article