Volume 54, Issue 45 pp. 13273-13278
Communication

Hydrolytic Transformation of Microporous Metal–Organic Frameworks to Hierarchical Micro- and Mesoporous MOFs

Dr. Yonghwi Kim

Dr. Yonghwi Kim

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/

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Dr. Tao Yang

Dr. Tao Yang

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/

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Dr. Gyeongwon Yun

Dr. Gyeongwon Yun

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/

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Mohammad Bagher Ghasemian

Mohammad Bagher Ghasemian

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/

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Jaehyoung Koo

Jaehyoung Koo

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/

Department of Chemistry, Pohang University of Science and Technology, Pohang, 790-784 (Republic of Korea)

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Prof. Dr. Eunsung Lee

Prof. Dr. Eunsung Lee

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/

Department of Chemistry, Pohang University of Science and Technology, Pohang, 790-784 (Republic of Korea)

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Prof. Dr. Sung June Cho

Prof. Dr. Sung June Cho

Department of Chemical Engineering, Chonnam National University, Gwangju, 500-757 (Republic of Korea)

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Prof. Dr. Kimoon Kim

Corresponding Author

Prof. Dr. Kimoon Kim

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/

Department of Chemistry, Pohang University of Science and Technology, Pohang, 790-784 (Republic of Korea)

Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang, 790-784 (Republic of Korea)

Center for Self-assembly and Complexity (CSC), Institute for Basic Science (IBS), Pohang, 790-784 (Republic of Korea) http://csc.ibs.re.kr/Search for more papers by this author
First published: 18 September 2015
Citations: 216

Graphical Abstract

Micro- to mesoporous transformation: The microporous metal–organic framework POST-66(Y) was transformed into a hierarchical micro- and mesoporous MOF, POST-66(Y)-wt. The mesopores, with a diameter of 3–20 nm, are easily obtained by simple treatment of POST-66(Y) with water.

Abstract

A new approach to the synthesis of hierarchical micro- and mesoporous MOFs from microporous MOFs involves a simple hydrolytic post-synthetic procedure. As a proof of concept, a new microporous MOF, POST-66(Y), was synthesized and its transformation into a hierarchical micro- and mesoporous MOF by water treatment was studied. This method produced mesopores in the range of 3 to 20 nm in the MOF while maintaining the original microporous structure, at least in part. The degree of micro- and mesoporosity can be controlled by adjusting the time and temperature of hydrolysis. The resulting hierarchical porous MOF, POST-66(Y)-wt, can be utilized to encapsulate nanometer-sized guests such as proteins, and the enhanced stability and recyclability of an encapsulated enzyme is demonstrated.

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