Volume 68, Issue 3 pp. 500-506
SPECIAL ISSUE PAPER

Pore morphology and topology of zeolite imidazolate framework ZIF-67 revealed by small-angle X-ray scattering

Cheng-Yu Wang

Cheng-Yu Wang

Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan

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Che-Min Chou

Che-Min Chou

National Synchrotron Radiation Research Center, Hsinchu, Taiwan

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Po-Sen Tseng

Po-Sen Tseng

Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan

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Cheng-Si Tsao

Corresponding Author

Cheng-Si Tsao

Institute of Nuclear Energy Research, Taoyuan, Taiwan

Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan

Correspondence

Cheng-Si Tsao, Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan.

Email: [email protected]

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First published: 15 February 2021
Citations: 10

Funding information: Ministry of Science and Technology, Grant/Award Number: MOST 108-2221-E-009-065-MY3

Abstract

The pore characterization of ZIF system using small-angle X-ray scattering (SAXS) technique is presented for the first time. The pore characterization of ZIF-67 framework structure as model system using the conventional nitrogen adsorption and SAXS methods was performed in this work. The comparison between the results obtained by two methods can provide the verification, complementary information, and error analysis to the conventional method using nitrogen atom as probe. The pore network and morphology are subjected to the topology of ZIF framework structure. The theoretical calculation of pore morphology in the unit cage of ZIF-67 structure is verified by this SAXS characterization. This SAXS study can be used as the reference of modeling pore for general ZIF systems.

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