Fine Tuning of MOF-505 Analogues to Reduce Low-Pressure Methane Uptake and Enhance Methane Working Capacity

Published

September 7, 2017

Author(s)

Mingxing Zhang, Wei Zhou, Tony Pham, Katherine A. Forrest, Wenlong Liu, Yabing He, Hui Wu, Taner N. Yildirim, Banglin Chen, Brian Space, Yi Pan, Michael J. Zaworotko, Junfeng Bai

Abstract

We present a crystal engineering strategy to fine tune the pore chemistry of a family of isomorphous MOFs with similar pore size, pore surface properties and surface area (around 3000 m² g^-1). Targeting PCN-14 variants in order to enhance its CH₄ working capacity, [Cu₂(L2)(H₂O)₂]_n (NJU-Bai 41: NJU-Bai for Nanjing University Bai's group), [Cu2(L3)(H2O)2]n (NJU-Bai 42) and [Cu₂(L4)(DMF)₂]_n (NJU-Bai 43) were prepared in order to tune pore sizes, pore surface and surface area. Interestingly, we observed that the methane volumetric working capacity and volumetric uptake values were impacted by the subtle changes in structure and chemistry. In particular, the CH₄ working capacity of NJU-Bai 43 can reach 198 cm³ (STP: 273.15 K, 1 atm) cm^-3 at 298 K and 65 bar, which is amongst the highest reported for MOFs under these conditions and is much higher than the corresponding value for PCN-14 (157 cm³ (STP) cm^-3).

Citation

Angewandte Chemie-International Edition

Volume

56

Pub Type

Journals

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Keywords

Porous materials, methane storage

Citation

Zhang, M. , Zhou, W. , Pham, T. , Forrest, K. , Liu, W. , He, Y. , Wu, H. , Yildirim, T. , Chen, B. , Space, B. , Pan, Y. , Zaworotko, M. and Bai, J. (2017), Fine Tuning of MOF-505 Analogues to Reduce Low-Pressure Methane Uptake and Enhance Methane Working Capacity, Angewandte Chemie-International Edition, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=923490 (Accessed June 30, 2024)