CO2, CH4, and H2 Adsorption Performance of the Metal-Organic Framework HKUST-1 by Modified Synthesis Strategies

Hussein Rasool Abid; Aamir Hanif; Alireza Keshavarz; Jin Shang; Stefan Iglauer

doi:10.1021/acs.energyfuels.2c04303

CO₂, CH₄, and H₂ Adsorption Performance of the Metal-Organic Framework HKUST-1 by Modified Synthesis Strategies

Hussein Rasool Abid^*
, Aamir Hanif
, Alireza Keshavarz
, Jin Shang^*
, Stefan Iglauer

^*Corresponding author for this work

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

25 Scopus citations

Abstract

High-pressure adsorption of CO₂, H₂, and CH₄ has several applications, including CO₂ capture, methane, and hydrogen storage. The performance ultimately depends on the adsorbent design. Herein, we report a comparative assessment of a Cu-metal-organic framework (MOF) (HKUST-1) by conventional hydrothermal synthesis and its modified analogues, HKUST-N with NH₄OH and HKUST-Ca with Ca(NO₃)₂, for CO₂, CH₄, and H₂ adsorption. The materials showed high CO₂ (12 mol/Kg), CH₄ (2.5-4 mol/Kg), and H₂ (0.4-0.8 mol/Kg) capacities at 50 bar. Owing to different synthesis strategies, the differences in surface area, pore size distribution, morphology, and the presence of calcium species in HKUST-Ca considerably impacted CH₄ and H₂ adsorption, leading to considerable differences in selectivities for various gas mixtures. This work establishes a clear correlation of subtle modifications in synthesis strategies of the MOF HKUST-1 on its morphological characteristics and CO₂, CH₄, and H₂ adsorption performance.

Original language	English
Pages (from-to)	7260-7267
Number of pages	8
Journal	Energy and Fuels
Volume	37
Issue number	10
DOIs	https://doi.org/10.1021/acs.energyfuels.2c04303
State	Published - 18 May 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acs.energyfuels.2c04303

Cite this

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title = "CO2, CH4, and H2 Adsorption Performance of the Metal-Organic Framework HKUST-1 by Modified Synthesis Strategies",

abstract = "High-pressure adsorption of CO2, H2, and CH4 has several applications, including CO2 capture, methane, and hydrogen storage. The performance ultimately depends on the adsorbent design. Herein, we report a comparative assessment of a Cu-metal-organic framework (MOF) (HKUST-1) by conventional hydrothermal synthesis and its modified analogues, HKUST-N with NH4OH and HKUST-Ca with Ca(NO3)2, for CO2, CH4, and H2 adsorption. The materials showed high CO2 (12 mol/Kg), CH4 (2.5-4 mol/Kg), and H2 (0.4-0.8 mol/Kg) capacities at 50 bar. Owing to different synthesis strategies, the differences in surface area, pore size distribution, morphology, and the presence of calcium species in HKUST-Ca considerably impacted CH4 and H2 adsorption, leading to considerable differences in selectivities for various gas mixtures. This work establishes a clear correlation of subtle modifications in synthesis strategies of the MOF HKUST-1 on its morphological characteristics and CO2, CH4, and H2 adsorption performance.",

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AU - Abid, Hussein Rasool

AU - Hanif, Aamir

AU - Keshavarz, Alireza

AU - Shang, Jin

AU - Iglauer, Stefan

PY - 2023/5/18

Y1 - 2023/5/18

N2 - High-pressure adsorption of CO2, H2, and CH4 has several applications, including CO2 capture, methane, and hydrogen storage. The performance ultimately depends on the adsorbent design. Herein, we report a comparative assessment of a Cu-metal-organic framework (MOF) (HKUST-1) by conventional hydrothermal synthesis and its modified analogues, HKUST-N with NH4OH and HKUST-Ca with Ca(NO3)2, for CO2, CH4, and H2 adsorption. The materials showed high CO2 (12 mol/Kg), CH4 (2.5-4 mol/Kg), and H2 (0.4-0.8 mol/Kg) capacities at 50 bar. Owing to different synthesis strategies, the differences in surface area, pore size distribution, morphology, and the presence of calcium species in HKUST-Ca considerably impacted CH4 and H2 adsorption, leading to considerable differences in selectivities for various gas mixtures. This work establishes a clear correlation of subtle modifications in synthesis strategies of the MOF HKUST-1 on its morphological characteristics and CO2, CH4, and H2 adsorption performance.

AB - High-pressure adsorption of CO2, H2, and CH4 has several applications, including CO2 capture, methane, and hydrogen storage. The performance ultimately depends on the adsorbent design. Herein, we report a comparative assessment of a Cu-metal-organic framework (MOF) (HKUST-1) by conventional hydrothermal synthesis and its modified analogues, HKUST-N with NH4OH and HKUST-Ca with Ca(NO3)2, for CO2, CH4, and H2 adsorption. The materials showed high CO2 (12 mol/Kg), CH4 (2.5-4 mol/Kg), and H2 (0.4-0.8 mol/Kg) capacities at 50 bar. Owing to different synthesis strategies, the differences in surface area, pore size distribution, morphology, and the presence of calcium species in HKUST-Ca considerably impacted CH4 and H2 adsorption, leading to considerable differences in selectivities for various gas mixtures. This work establishes a clear correlation of subtle modifications in synthesis strategies of the MOF HKUST-1 on its morphological characteristics and CO2, CH4, and H2 adsorption performance.

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