Hollow Metal-Organic Framework Microparticles Assembled via a Self-Templated Formation Mechanism

Ilrang Lee; Sora Choi; Hee Jung Lee; Moonhyun Oh

doi:10.1021/acs.cgd.5b00919

Hollow Metal-Organic Framework Microparticles Assembled via a Self-Templated Formation Mechanism

Ilrang Lee, Sora Choi, Hee Jung Lee, Moonhyun Oh

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

Hollow particles are considered to be fascinating materials due to their useful applications and unique properties. Understanding the formation mechanism of hollow structures is critical for their controlled formation. Herein, we demonstrate the fabrication of hollow metal-organic framework (hollow MOF) microparticles via a one-step solvothermal reaction of Zn(NO₃)₂ and 1,3,5-benzenetricarboxylic acid (H₃BTC) without extra template materials. The formation mechanism study of the hollow MOF reveals a unique self-templated formation mechanism consisting of three stages: (1) spherical microparticles are initially formed during the early stage of the reaction, (2) the initially formed spherical microparticles act as self-templates for the growth of new crystalline MOF materials during the middle stage of the reaction, and (3) the initially formed spherical microparticles spontaneously disappear for the formation of hollow MOFs during the late stage of the reaction.

Original language	English
Pages (from-to)	5169-5173
Number of pages	5
Journal	Crystal Growth and Design
Volume	15
Issue number	11
DOIs	https://doi.org/10.1021/acs.cgd.5b00919
Publication status	Published - 2015 Sep 29

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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PY - 2015/9/29

Y1 - 2015/9/29

N2 - Hollow particles are considered to be fascinating materials due to their useful applications and unique properties. Understanding the formation mechanism of hollow structures is critical for their controlled formation. Herein, we demonstrate the fabrication of hollow metal-organic framework (hollow MOF) microparticles via a one-step solvothermal reaction of Zn(NO3)2 and 1,3,5-benzenetricarboxylic acid (H3BTC) without extra template materials. The formation mechanism study of the hollow MOF reveals a unique self-templated formation mechanism consisting of three stages: (1) spherical microparticles are initially formed during the early stage of the reaction, (2) the initially formed spherical microparticles act as self-templates for the growth of new crystalline MOF materials during the middle stage of the reaction, and (3) the initially formed spherical microparticles spontaneously disappear for the formation of hollow MOFs during the late stage of the reaction.

AB - Hollow particles are considered to be fascinating materials due to their useful applications and unique properties. Understanding the formation mechanism of hollow structures is critical for their controlled formation. Herein, we demonstrate the fabrication of hollow metal-organic framework (hollow MOF) microparticles via a one-step solvothermal reaction of Zn(NO3)2 and 1,3,5-benzenetricarboxylic acid (H3BTC) without extra template materials. The formation mechanism study of the hollow MOF reveals a unique self-templated formation mechanism consisting of three stages: (1) spherical microparticles are initially formed during the early stage of the reaction, (2) the initially formed spherical microparticles act as self-templates for the growth of new crystalline MOF materials during the middle stage of the reaction, and (3) the initially formed spherical microparticles spontaneously disappear for the formation of hollow MOFs during the late stage of the reaction.

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Hollow Metal-Organic Framework Microparticles Assembled via a Self-Templated Formation Mechanism

Abstract

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