JP-2026075947-A - Molded body, laminate, and method for manufacturing a molded body

Abstract

[Problem] To provide a molded article having a novel structure including an organometallic structure that has excellent moisture resistance and high mechanical strength. [Solution] A molded body comprising a metal-organic structure and an ionic liquid held within the pores of the metal-organic structure, having a processed wall processed along a direction parallel to and intersecting the surface of the molded body, wherein the average angle between the surface of the processed wall and the surface of the molded body is 75° to 105°. A method for manufacturing a molded body that can produce a molded body with a desired shape imparted to the metal-organic structure includes performing an etching treatment on the composite comprising the metal-organic structure and the ionic liquid held within the pores of the metal-organic structure. [Selection Diagram] Figure 1

Inventors

• 木下 健太郎
• 鄭 雨萌
• 小関 海斗

Assignees

• 学校法人東京理科大学

Dates

Publication Date

20260511

Application Date

20241023

Claims (7)

1. A molded body comprising a metal-organic structure and an ionic liquid held within the pores of the metal-organic structure, A molded body having a processed wall processed along a direction parallel to and intersecting the surface of the molded body, wherein the average angle between the surface of the processed wall and the surface of the molded body is 75° to 105°.
2. The molded article according to claim 1, wherein the ionic liquid contains an imidazolium cation.
3. The molded article according to claim 2, wherein the imidazolium cation is 1-ethyl-3-methylimidazolium cation, 1-butyl-3-methylimidazolium cation, 1-hexyl-3-methylimidazolium cation, or 1-methyl-3-n-octylimidazolium cation.
4. The molded article according to claim 1, wherein the ionic liquid comprises a hexafluorophosphate anion, a tetrafluoroborate anion, a trifluoromethanesulfonic acid anion, a bis(trifluoromethanesulfonyl)imide anion, or a dicyanamide anion.
5. A laminate comprising a substrate and a molded body according to any one of claims 1 to 4, disposed on the substrate.
6. A method for manufacturing a molded article, comprising etching a composite containing a metal-organic structure and an ionic liquid held within the pores of the metal-organic structure.
7. The method for manufacturing a molded article according to claim 6, wherein the etching process is dry etching.

Description

This disclosure relates to molded articles, laminates, and methods for manufacturing molded articles. Metal-organic frames (MOFs) are porous, three-dimensional structures whose application in a variety of applications is being explored. For example, Patent Document 1 describes a porous coordination polymer-ionic liquid composite having an insulating structure made of a porous coordination polymer and an ionic liquid held within the pores of the porous coordination polymer. Patent Document 2 describes an ion-conducting composite characterized by comprising crystalline particles of a porous coordination polymer having an average primary particle size of 50 nm or less, and a first ionic liquid held within the first pores of the porous coordination polymer. Patent Document 3 describes a molecular sensor comprising a porous member and a sensitive membrane in which an ionic liquid coexists, and capable of detecting a target molecule by measuring the change in physical quantity due to the attachment of the target molecule to the sensitive membrane. Patent Document 4 describes a carbon dioxide absorbent comprising at least a porous carrier and an ionic liquid supported on the porous carrier, characterized in that the ionic liquid is a specific phosphonium-based ionic liquid. Patent Document 5 describes a method for producing a surface-functionalized porous organic-inorganic hybrid material, which is produced by reacting a porous organic-inorganic hybrid material or a porous organic-inorganic mesoporous material having unsaturated metal moieties with organic substances, inorganic substances, ionic liquids, and organic-inorganic metal compounds. International Publication No. 2013-161452Japanese Patent Publication No. 2015-156364Japanese Patent Publication No. 2022-7969Japanese Patent Publication No. 2024-59583Special Publication No. 2010-527890 Figure 1 is an electron microscope image of the molded body of Example 1.Figure 2A shows the etching rate during FIB processing in Example 1-1.Figure 2B shows the etching rate during FIB processing in Example 1-2.Figure 2C shows the etching rate during FIB processing in Examples 1-3.Figure 3 is an electron microscope image of a metal-organic structure that does not contain ionic liquid when subjected to FIB processing. In this disclosure, the numerical range indicated using "~" means the range that includes the numbers written before and after "~" as the minimum and maximum values, respectively. In the numerical ranges described in stages in this disclosure, the upper or lower limit stated in one numerical range may be replaced with the upper or lower limit of another numerical range described in stages. Furthermore, in the numerical ranges described in this disclosure, the upper or lower limit stated in one numerical range may be replaced with the values shown in the examples. In this disclosure, a combination of two or more preferred embodiments is a more preferred embodiment. In this disclosure, unless otherwise specified, the amount of each component refers to the total amount of multiple substances if there are multiple substances corresponding to each component. In this disclosure, the term "process" includes not only independent processes but also processes that cannot be clearly distinguished from other processes, as long as their intended purpose is achieved. The drawings referenced in the following description are illustrative and schematic, and this disclosure is not limited to these drawings. The same reference numerals indicate the same components. Reference numerals in the drawings may also be omitted. [Molded product] The molded article according to this disclosure comprises a metal-organic structure and an ionic liquid held within the pores of the metal-organic structure, and has a processed wall processed along a direction parallel to and intersecting the surface of the molded article, wherein the average angle between the wall surface of the processed wall and the surface of the molded article is 75° to 105°. Metal-organic structures are difficult to process on their own. The inventors have discovered that combining a metal-organic structure with an ionic liquid can yield a molded article with a novel structure. The molded article according to this disclosure not only possesses the physical properties and functions of both the metal-organic structure and the ionic liquid, but also exhibits new physical properties and functions through the interaction between the metal-organic structure and the ionic liquid. For example, compared to a single metal-organic structure, the molded article according to this disclosure exhibits improved gas adsorption and separation capabilities, making it promising for use in semiconductor processes. Furthermore, in the molded article according to this disclosure, since the ionic liquid is retained within the pores of the metal-organic structure, it does not absorb moisture even when left in an atmosphere with normal humidity for a