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Harvey-Reid NC, Sensharma D, Mukherjee S, Patil KM, Kumar N, Nikkhah SJ, Vandichel M, Zaworotko MJ, Kruger PE. Crystal Engineering of a New Hexafluorogermanate Pillared Hybrid Ultramicroporous Material Delivers Enhanced Acetylene Selectivity. ACS Appl Mater Interfaces 2024; 16:4803-4810. [PMID: 38258417 DOI: 10.1021/acsami.3c16634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Hybrid ultramicroporous materials (HUMs), metal-organic platforms that incorporate inorganic pillars, are a promising class of porous solids. A key area of interest for such materials is gas separation, where HUMs have already established benchmark performances. Thanks to their ready compositional modularity, we report the design and synthesis of a new HUM, GEFSIX-21-Cu, incorporating the ligand pypz (4-(3,5-dimethyl-1H-pyrazol-4-yl)pyridine, 21) and GeF62- pillaring anions. GEFSIX-21-Cu delivers on two fronts: first, it displays an exceptionally high C2H2 adsorption capacity (≥5 mmol g-1) which is paired with low uptake of CO2 (<2 mmol g-1), and, second, a low enthalpy of adsorption for C2H2 (ca. 32 kJ mol-1). This combination is rarely seen in the C2H2 selective physisorbents reported thus far, and not observed in related isostructural HUMs featuring pypz and other pillaring anions. Dynamic column breakthrough experiments for 1:1 and 2:1 C2H2/CO2 mixtures revealed GEFSIX-21-Cu to selectively separate C2H2 from CO2, yielding ≥99.99% CO2 effluent purities. Temperature-programmed desorption experiments revealed full sorbent regeneration in <35 min at 60 °C, reinforcing HUMs as potentially technologically relevant materials for strategic gas separations.
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Affiliation(s)
- Nathan C Harvey-Reid
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand
| | - Debobroto Sensharma
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Soumya Mukherjee
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Komal M Patil
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand
| | - Naveen Kumar
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Sousa Javan Nikkhah
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Matthias Vandichel
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Michael J Zaworotko
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Paul E Kruger
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand
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Han X, Yang S. Molecular Mechanisms behind Acetylene Adsorption and Selectivity in Functional Porous Materials. Angew Chem Int Ed Engl 2023; 62:e202218274. [PMID: 36718911 DOI: 10.1002/anie.202218274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/01/2023]
Abstract
Since its first industrial production in 1890s, acetylene has played a vital role in manufacturing a wide spectrum of materials. Although current methods and infrastructures for various segments of acetylene industries are well-established, with emerging functional porous materials that enabled desired selectivity toward target molecules, it is of timely interest to develop new efficient technologies to promote safer acetylene processes with a higher energy efficiency and lower carbon footprint. In this Minireview, we, from the perspective of materials chemistry, review state-of-the-art examples of advanced porous materials, namely metal-organic frameworks and decorated zeolites, that have been applied to the purification and storage of acetylene. We also discuss the challenges on the roadmap of translational research in the development of new solid sorbent-based separation technologies and highlight areas which require future research efforts.
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Affiliation(s)
- Xue Han
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
- Department of Chemistry, The University of Manchester, Manchester, M13 9PL, UK
| | - Sihai Yang
- Department of Chemistry, The University of Manchester, Manchester, M13 9PL, UK
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Ma LN, Wang ZH, Zhang L, Hou L, Wang YY, Zhu Z. Extraordinary Separation of Acetylene-Containing Mixtures in a Honeycomb Calcium-Based MOF with Multiple Active Sites. ACS Appl Mater Interfaces 2023; 15:2971-2978. [PMID: 36600613 DOI: 10.1021/acsami.2c19321] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Acetylene (C2H2) separation from multicomponent mixtures is vitally important but industrially challenging for the collection of high-purity C2H2. To address this requirement, the reaction between the alkaline-earth Ca2+ ions with a dicarboxylate-diazolate linker, 4,6-di(1H-tetrazol-5-yl)isophthalic acid (H4dtzip), gave rise to a new metal-organic framework (MOF) material [Ca(dtzip)0.5H2O]·2H2O (1). The material presents unique regular tubular channels based on threefolded helical rod-like secondary building units with rich open metal sites and exposed organic hydrogen-bonding N/O acceptors that enhance the interactions with C2H2 molecules, endowing significant selectivity for C2H2 over C2H4 (5.4), C2H6 (5.6), CH4 (30.0), and CO2 (7.7) at 298 K and 100 kPa. Column breakthrough experiments confirmed the extraordinary C2H2 separation performance of the material with the separation time intervals in the range of 18-24 min g-1 for binary (C2H2-C2H4, C2H2-C2H6, C2H2-CO2, and C2H2-CH4) or ternary (C2H2-C2H4-C2H6 and C2H2-C2H4-CO2) gas mixtures under dynamic conditions.
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Affiliation(s)
- Li-Na Ma
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Zi-Han Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Lin Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Lei Hou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
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Wang GD, Li YZ, Zhang WF, Hou L, Wang YY, Zhu Z. Acetylene Separation by a Ca-MOF Containing Accessible Sites of Open Metal Centers and Organic Groups. ACS Appl Mater Interfaces 2021; 13:58862-58870. [PMID: 34870404 DOI: 10.1021/acsami.1c20533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Efficient separation of acetylene from a ternary acetylene-containing mixture is an important and vital task in petrochemical industry, which is difficult to achieve using a single material. Herein, a new Ca2+-based metal-organic framework (MOF) [Ca(dtztp)0.5(DMA)]·2H2O (1) was constructed using the N,O-donor ligand 2,5-di(2H-tetrazol-5-yl)terephthalic acid and the less-studied alkaline earth Ca2+ ions. The MOF shows a 3D honeycomb framework based on unique metal-carboxylate-azolate rod secondary building units. Owing to the presence of high-density organic hydrogen-bonding acceptors and open metal sites (OMSs), the activated MOF shows high adsorption capacity for C2H2 and selectivity for C2H2 over CO2, C2H4, C2H6, and CH4. Dynamic breakthrough experiments indicated the actual C2H2 separation potential of the MOF from binary (C2H2-C2H4 and C2H2-CO2) and ternary (C2H2-C2H4-CO2 and C2H2-C2H4-C2H6) mixtures. Simulations revealed that the synergistic interactions between the OMSs and N atoms in MOF and C2H2 molecules play an important role in the separation of C2H2.
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Affiliation(s)
- Gang-Ding Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Yong-Zhi Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Wan-Fang Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Lei Hou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane 4072, Australia
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