1
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Eder S, Guggenberger P, Priamushko T, Kleitz F, Thommes M. Aspects of Gas Storage: Confined Geometry Effects on the High-Pressure Adsorption Behavior of Supercritical Fluids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2079-2090. [PMID: 38227957 DOI: 10.1021/acs.langmuir.3c02841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
During the last decades, major progress was made concerning the understanding of subcritical low-pressure adsorption of fluids like nitrogen and argon at their boiling temperatures in nanoporous materials. It was possible to understand how structural properties affect the shape of the adsorption isotherms. However, within the context of gas storage applications, supercritical high-pressure gas adsorption is important. A key feature here is that the experimentally determined surface excess adsorption isotherm may exhibit a characteristic maximum at a certain pressure. For a given temperature and adsorptive/adsorbent system, the surface excess maximum (and the corresponding adsorbed amount) is related to the storage capacity of the adsorbent. However, there is still a lack of understanding of how key textural properties such as surface area and pore size affect details of the shape of supercritical high-pressure adsorption isotherms. To address these open questions, we have performed a systematic experimental study assessing the effect of pore size/structure on the supercritical adsorption isotherms of pure fluids such as C2H4, CO2, and SF6 over a wider range of temperatures and pressures on a series of model materials exhibiting well-defined pore sizes, i.e., ordered micro- and mesoporous materials (e.g., NaY zeolite, KIT-6 silica, and MCM-48 silica). A fundamental result of our experiments is a unique fluid-independent correlation between the pressure of the surface excess maximum pmax (at a given temperature) and the pore size (by taking into account the kinetic diameter of the fluid and the underlying effective attractive fluid-wall interaction). Summarizing, our results suggest important structure-property relationships, allowing one to determine, for given thermodynamic conditions, important information related to the optimal operating conditions for supercritical adsorption applications. The insights may also serve as a basis for optimizing and tailoring the properties of nanoporous adsorbent materials for gas storage applications.
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Affiliation(s)
- Simon Eder
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, Erlangen 91058, Germany
| | - Patrick Guggenberger
- Department of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, Währinger Str. 42, Vienna 1090, Austria
| | - Tatiana Priamushko
- Department of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria
- Helmholtz Institute Erlangen-Nürnberg for Renewable Energy, Forschungszentrum Jülich GmbH, Cauerstraße 1, 91058 Erlangen, Germany
| | - Freddy Kleitz
- Department of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria
| | - Matthias Thommes
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, Erlangen 91058, Germany
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2
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Sokolov SE, Volkov VV. High Pressures Gas Adsorption in Porous Media and Polymeric Membrane Materials. MEMBRANES AND MEMBRANE TECHNOLOGIES 2022. [DOI: 10.1134/s2517751622070022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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3
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Unveiling the Temperature Influence on the Sorptive Behaviour of ZIF-8 Composite Materials Impregnated with [CnMIM][B(CN)4] Ionic Liquids. Processes (Basel) 2022. [DOI: 10.3390/pr10020247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Composite sorbent materials (IL@MOF) with a metal-organic framework (MOF) ZIF-8 and [B(CN)4]−-based ionic liquids (ILs) were produced for the first time. Characterization results indicate the successful IL impregnation and conservation of the ZIF-8 crystalline structure and morphology. The data collected from the nitrogen (N2) physisorption at 77 K suggest that these IL@ZIF-8 materials are nonporous as their textural properties, such as BET specific surface area and total pore volume, are negligible. However, CO2, CH4, and N2 adsorption/desorption measurements in the IL@ZIF-8 composites at 303 and 273 K contradict the N2 data at 77 K, given that the obtained isotherms are Type I, typical of (micro)porous materials. Their gas adsorption capacity and ultramicroporous volume are in the same order of magnitude as the pristine microporous ZIF-8. The case study [C6MIM][B(CN)4] IL revealed a high affinity to both CO2 and CH4. This compromised the selectivity performance of its respective composite when compared with pristine ZIF-8. This work highlights the importance of accurate experimental gas adsorption/desorption equilibrium measurements to characterize the adsorption uptake and the porous nature of adsorbent materials.
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4
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Ortiz-Albo P, Ferreira TJ, Martins CF, Alves V, Esteves IAAC, Cunha-Silva L, Kumakiri I, Crespo J, Neves LA. Impact of Ionic Liquid Structure and Loading on Gas Sorption and Permeation for ZIF-8-Based Composites and Mixed Matrix Membranes. MEMBRANES 2021; 12:13. [PMID: 35054541 PMCID: PMC8780584 DOI: 10.3390/membranes12010013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 11/16/2022]
Abstract
Carbon dioxide (CO2) capture has become of great importance for industrial processes due to the adverse environmental effects of gas emissions. Mixed matrix membranes (MMMs) have been studied as an alternative to traditional technologies, especially due to their potential to overcome the practical limitations of conventional polymeric and inorganic membranes. In this work, the effect of using different ionic liquids (ILs) with the stable metal-organic framework (MOF) ZIF-8 was evaluated. Several IL@ZIF-8 composites and IL@ZIF-8 MMMs were prepared to improve the selective CO2 sorption and permeation over other gases such as methane (CH4) and nitrogen (N2). Different ILs and two distinct loadings were prepared to study not only the effect of IL concentration, but also the impact of the IL structure and affinity towards a specific gas mixture separation. Single gas sorption studies showed an improvement in CO2/CH4 and CO2/N2 selectivities, compared with the ones for the pristine ZIF-8, increasing with IL loading. In addition, the prepared IL@ZIF-8 MMMs showed improved CO2 selective behavior and mechanical strength with respect to ZIF-8 MMMs, with a strong dependence on the intrinsic IL CO2 selectivity. Therefore, the selection of high affinity ILs can lead to the improvement of CO2 selective separation for IL@ZIF-8 MMMs.
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Affiliation(s)
- Paloma Ortiz-Albo
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (P.O.-A.); (T.J.F.); (I.A.A.C.E.); (J.C.)
| | - Tiago J. Ferreira
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (P.O.-A.); (T.J.F.); (I.A.A.C.E.); (J.C.)
| | - Carla F. Martins
- Low Carbon & Resource Efficiency, R&Di, Instituto de Soldadura e Qualidade, Av. Prof. Cavaco Silva 33, 2740-120 Oeiras, Portugal;
| | - Vitor Alves
- LEAF—Linking Landscape, Environment, Agriculture and Food—Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal;
| | - Isabel A. A. C. Esteves
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (P.O.-A.); (T.J.F.); (I.A.A.C.E.); (J.C.)
| | - Luís Cunha-Silva
- LAQV/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal;
| | - Izumi Kumakiri
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Ube 7558611, Japan;
| | - João Crespo
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (P.O.-A.); (T.J.F.); (I.A.A.C.E.); (J.C.)
| | - Luísa A. Neves
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; (P.O.-A.); (T.J.F.); (I.A.A.C.E.); (J.C.)
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5
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Ferreira IC, Ferreira TJ, Barbosa AD, de Castro B, Ribeiro RP, Mota JP, Alves VD, Cunha-Silva L, Esteves IA, Neves LA. Cr-based MOF/IL composites as fillers in mixed matrix membranes for CO2 separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119303] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Broom DP, Hirscher M. Improving Reproducibility in Hydrogen Storage Material Research. Chemphyschem 2021; 22:2141-2157. [PMID: 34382729 PMCID: PMC8596736 DOI: 10.1002/cphc.202100508] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/11/2021] [Indexed: 11/08/2022]
Abstract
Research into new reversible hydrogen storage materials has the potential to help accelerate the transition to a hydrogen economy. The discovery of an efficient and cost-effective method of safely storing hydrogen would revolutionise its use as a sustainable energy carrier. Accurately measuring storage capacities - particularly of novel nanomaterials - has however proved challenging, and progress is being hindered by ongoing problems with reproducibility. Various metal and complex hydrides are being investigated, together with nanoporous adsorbents such as carbons, metal-organic frameworks and microporous organic polymers. The hydrogen storage properties of these materials are commonly determined using either the manometric (or Sieverts) technique or gravimetric methods, but both approaches are prone to significant error, if not performed with great care. Although commercial manometric and gravimetric instruments are widely available, they must be operated with an awareness of the limits of their applicability and the error sources inherent to the measurement techniques. This article therefore describes the measurement of hydrogen sorption and covers the required experimental procedures, aspects of troubleshooting and recommended reporting guidelines, with a view of helping improve reproducibility in experimental hydrogen storage material research.
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Affiliation(s)
| | - Michael Hirscher
- Max Planck Institute for Intelligent SystemsHeisenbergstrasse 370569StuttgartGermany
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7
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Zhao T, Qing L, Long T, Xu X, Zhao S, Lu X. Dynamical coupling of ion adsorption with fluid flow in nanopores. AIChE J 2021. [DOI: 10.1002/aic.17266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Teng Zhao
- State Key laboratory of Chemical Engineering and School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Leying Qing
- State Key laboratory of Chemical Engineering and School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Ting Long
- State Key laboratory of Chemical Engineering and School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Xiaofei Xu
- State Key laboratory of Chemical Engineering and School of Chemical Engineering East China University of Science and Technology Shanghai China
| | - Shuangliang Zhao
- State Key laboratory of Chemical Engineering and School of Chemical Engineering East China University of Science and Technology Shanghai China
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology and School of Chemistry and Chemical Engineering Guangxi University Nanning China
| | - Xiaohua Lu
- College of Chemical Engineering, State Key Laboratory of Materials‐oriented Chemical Engineering Nanjing Tech University Nanjing China
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8
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Measurement and interpretation of unary supercritical gas adsorption isotherms in micro-mesoporous solids. ADSORPTION 2021. [DOI: 10.1007/s10450-021-00313-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractGas adsorption at high pressures in porous solids is commonly quantified in terms of the excess amount adsorbed. Despite the wide spectrum of adsorbent morphologies available, the analysis of excess adsorption isotherms has mostly focused on microporous materials and the role of mesoporosity remains largely unexplored. Here, we present supercritical CO2 adsorption isotherms measured at $$T=308$$
T
=
308
K in the pressure range $$p=0.02{-}21$$
p
=
0.02
-
21
MPa on three adsorbents with distinct fractions of microporosity, $$\phi_2$$
ϕ
2
, namely a microporous metal-organic framework ($$\phi_2=70$$
ϕ
2
=
70
%), a micro-mesoporous zeolite ($$\phi_2=38$$
ϕ
2
=
38
%) and a mesoporous carbon ($$\phi_2<0.1$$
ϕ
2
<
0.1
%). The results are compared systematically in terms of excess and net adsorption relative to two distinct reference states–the space filled with gas in the presence/absence of adsorbent–that are defined from two separate experiments using helium as the probing gas. We discuss the inherent difficulties in extracting from the supercritical adsorption isotherms quantitative information on the properties of the adsorbed phase (its density or volume), because of the nonuniform distribution of the latter within and across the different classes of pore sizes. Yet, the data clearly reveal pore-size dependent adsorption behaviour, which can be used to identify characteristic types of isotherm and to complement the information obtained using the more traditional textural analysis by physisorption.
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9
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Naheed L, Lamb KE, Gray EM, Webb CJ. Extracting adsorbate information from manometric uptake measurements of hydrogen at high pressure and ambient temperature. ADSORPTION 2021. [DOI: 10.1007/s10450-020-00289-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Ferreira TJ, Vera AT, de Moura BA, Esteves LM, Tariq M, Esperança JMSS, Esteves IAAC. Paramagnetic Ionic Liquid/Metal Organic Framework Composites for CO 2/CH 4 and CO 2/N 2 Separations. Front Chem 2020; 8:590191. [PMID: 33304882 PMCID: PMC7701274 DOI: 10.3389/fchem.2020.590191] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/20/2020] [Indexed: 12/05/2022] Open
Abstract
Global warming is arguably the biggest scientific challenge of the twenty-first century and its environmental consequences are already noticeable. To mitigate the emissions of greenhouse gases, particularly of CO2, there is an urgent need to design materials with improved adsorbent properties. Five different magnetic ionic liquids were impregnated into the metal–organic framework ZIF-8. The composites were produced by a direct-contact method, and their performance as sorbents for gas separation applications was studied. The impact of the ionic liquid anion on the sorption capacity and ideal CO2/CH4 and CO2/N2 selectivities were studied, focusing on understanding the influence of metal atom and ligand on the adsorbent properties. Reproducible methodology, along with rigorous characterization, were established to assess the impact of the ionic liquid on the performance of the composite materials. Results show that the ionic liquid was well-impregnated, and the ZIF-8 structure was maintained after ionic liquid impregnation. The produced composites were of microporous nature and were thermally stable. CO2, CH4, and N2 adsorption–desorption isotherms were obtained at 303 K and between 0 and 16 bar. The adsorption-desorption data of the composites were compared with that obtained for original ZIF-8. The general trend in composites is that the increased gas uptake per available pore volume compensates the pore volume loss. Adsorption data per unit mass showed that composites have reversible sorption, but inferior gas uptake at all pressure ranges. This is due to the observed total pore volume loss by the ionic liquid pore occupation/blockage. In most cases, composites showed superior selectivity performance at all pressure range. In particular, the composite [C4MIM]2[MnCl4]@ZIF-8 shows a different low-pressure selectivity trend from the original MOF, with a 33% increase in the CO2/N2 selectivity at 1 bar and 19% increase in the CO2/CH4 selectivity at 10 bar. This material shows potential for use in a post-combustion CO2 capture application that can contribute to greenhouse gas mitigation.
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Affiliation(s)
- Tiago J Ferreira
- Laboratório Associado para a Química Verde/Rede de Química e Tecnologia (LAQV/REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa (FCT NOVA), Costa da Caparica, Portugal
| | - Ana T Vera
- Laboratório Associado para a Química Verde/Rede de Química e Tecnologia (LAQV/REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa (FCT NOVA), Costa da Caparica, Portugal
| | - Beatriz A de Moura
- Laboratório Associado para a Química Verde/Rede de Química e Tecnologia (LAQV/REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa (FCT NOVA), Costa da Caparica, Portugal
| | - Laura M Esteves
- Laboratório Associado para a Química Verde/Rede de Química e Tecnologia (LAQV/REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa (FCT NOVA), Costa da Caparica, Portugal
| | - Mohammad Tariq
- Laboratório Associado para a Química Verde/Rede de Química e Tecnologia (LAQV/REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa (FCT NOVA), Costa da Caparica, Portugal
| | - José M S S Esperança
- Laboratório Associado para a Química Verde/Rede de Química e Tecnologia (LAQV/REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa (FCT NOVA), Costa da Caparica, Portugal
| | - Isabel A A C Esteves
- Laboratório Associado para a Química Verde/Rede de Química e Tecnologia (LAQV/REQUIMTE), Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa (FCT NOVA), Costa da Caparica, Portugal
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11
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Broom DP, Talu O, Benham MJ. Integral Mass Balance (IMB) Method for Measuring Multicomponent Gas Adsorption Equilibria in Nanoporous Materials. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04162] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Darren P. Broom
- Hiden Isochema Ltd, 422 Europa Boulevard, Warrington WA5 7TS, U.K
| | - Orhan Talu
- Chemical and Biomedical Engineering, Cleveland State University, Cleveland, Ohio 44115, United States
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12
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Extracting meaningful standard enthalpies and entropies of activation for surface reactions from kinetic rates. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01747-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Sircar S. Uniqueness of Gibbsian Surface Excess. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shivaji Sircar
- Department of Chemical and Biomolecular Engineering Lehigh University, Bethlehem, Pennsylvania 18015, United States
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14
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Sircar S. The genius of Gibbsian surface excess (GSE) framework for fluid (gas or liquid) – Solid adsorption: A powerful practical tool. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.11.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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CO 2 /N 2 gas separation using Fe(BTC)-based mixed matrix membranes: A view on the adsorptive and filler properties of metal-organic frameworks. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.03.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Iakunkov A, Klechikov A, Sun J, Steenhaut T, Hermans S, Filinchuk Y, Talyzin A. Gravimetric tank method to evaluate material-enhanced hydrogen storage by physisorbing materials. Phys Chem Chem Phys 2018; 20:27983-27991. [DOI: 10.1039/c8cp05241g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Weighing of whole gas-filled tank is proposed as a simple and inexpensive method to evaluate hydrogen storage properties of materials relative to compressed gas.
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Affiliation(s)
| | | | - Jinhua Sun
- Department of Physics
- Umeå University
- S-90187
- Umeå
- Sweden
| | - Timothy Steenhaut
- Institute of Condensed Matter and Nanosciences
- Université Catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Sophie Hermans
- Institute of Condensed Matter and Nanosciences
- Université Catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Yaroslav Filinchuk
- Institute of Condensed Matter and Nanosciences
- Université Catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
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17
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Shkilev VP, Lobanov VV. Thermodynamics of adsorption on deformable adsorbents. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417040276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Soukup K, Hejtmánek V, Cruz GJF, Jandová V, Solcova O. Excess Adsorption Isotherms of Hydrogen on Activated Carbons from Agricultural Waste Materials. Chem Eng Technol 2017. [DOI: 10.1002/ceat.201600610] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Karel Soukup
- Institute of Chemical Process Fundamentals of the CAS, v. v. i.; Rozvojová 135 165 02 Prague 6 Czech Republic
| | - Vladimír Hejtmánek
- Institute of Chemical Process Fundamentals of the CAS, v. v. i.; Rozvojová 135 165 02 Prague 6 Czech Republic
| | - Gerardo J. F. Cruz
- National University of Tumbes; Department of Forestry Engineering and Environmental Management; Av. Universitaria s/n, Campus Universitario, Pampa Grande Tumbes Peru
| | - Věra Jandová
- Institute of Chemical Process Fundamentals of the CAS, v. v. i.; Rozvojová 135 165 02 Prague 6 Czech Republic
| | - Olga Solcova
- Institute of Chemical Process Fundamentals of the CAS, v. v. i.; Rozvojová 135 165 02 Prague 6 Czech Republic
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19
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Brandani S, Mangano E, Luberti M. Net, excess and absolute adsorption in mixed gas adsorption. ADSORPTION 2017; 23:569-576. [PMID: 32103859 PMCID: PMC7010369 DOI: 10.1007/s10450-017-9875-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 01/30/2017] [Accepted: 02/01/2017] [Indexed: 11/30/2022]
Abstract
The formulation of a thermodynamic framework for mixtures based on absolute, excess or net adsorption is discussed and the qualitative dependence with pressure and fugacity is used to highlight a practical issue that arises when extending the formulations to mixtures and to the Ideal Adsorbed Solution Theory (IAST). Two important conclusions are derived: the correct fundamental thermodynamic variable is the absolute adsorbed amount; there is only one possible definition of the ideal adsorbed solution and whichever starting point is used the same final IAST equations are obtained, contrary to what has been reported in the literature.
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Affiliation(s)
- Stefano Brandani
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Enzo Mangano
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Mauro Luberti
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
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20
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Tian Y, Wu J. Differential Heat of Adsorption and Isosteres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:996-1003. [PMID: 28064481 DOI: 10.1021/acs.langmuir.7b00004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Heat of adsorption is a basic thermodynamic property extensively used not only for understanding thermal effects and heat management in industrial gas storage and separation processes but also for development and validation of adsorption models and materials force fields. Despite a long history of theoretical studies and a vast experimental literature, controversies often arise in the thermodynamic analysis of heat effects due to various assumptions used to describe gas adsorption and inconsistencies between direct calorimetric measurements and isosteric heat obtained from various adsorption isotherms. Here we present a rigorous theoretical procedure for predicting isosteric heat without any assumption about the geometry of porous adsorbents or operating conditions. Quantitative relations between the differential heat and various isosteres have been established with the grand-canonical Monte Carlo simulation for gas adsorption in amorphous as well as crystalline porous materials. The inconsistencies and practical issues with conventional methods for the analysis of the heat effect have been clarified in the context of the exact results for model systems. Via the resolution of a number of controversies about heat analysis, we hope that the new theoretical procedure will be adopted for both fundamental research and industrial applications of gas adsorption processes.
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Affiliation(s)
- Yun Tian
- Department of Chemical and Environmental Engineering, University of California , Riverside, California 92521, United States
| | - Jianzhong Wu
- Department of Chemical and Environmental Engineering, University of California , Riverside, California 92521, United States
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21
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22
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Tzabar N, ter Brake HJM. Adsorption isotherms and Sips models of nitrogen, methane, ethane, and propane on commercial activated carbons and polyvinylidene chloride. ADSORPTION 2016. [DOI: 10.1007/s10450-016-9794-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rouquerol J, Rouquerol F, Llewellyn P, Denoyel R. Surface excess amounts in high-pressure gas adsorption: Issues and benefits. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Brandani S, Mangano E, Sarkisov L. Net, excess and absolute adsorption and adsorption of helium. ADSORPTION 2016; 22:261-276. [PMID: 32269423 PMCID: PMC7115088 DOI: 10.1007/s10450-016-9766-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 01/12/2016] [Accepted: 01/16/2016] [Indexed: 12/02/2022]
Abstract
The definitions of absolute, excess and net adsorption in microporous materials are used to identify the correct limits at zero and infinite pressure. Absolute adsorption is shown to be the fundamental thermodynamic property and methods to determine the solid density that includes the micropore volume are discussed. A simple means to define when it is necessary to distinguish between the three definitions at low pressure is presented. To highlight the practical implications of the analysis the case of adsorption of helium is considered in detail and a combination of experiments and molecular simulations is used to clarify how to interpret adsorption measurements for weakly adsorbed components.
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Affiliation(s)
- Stefano Brandani
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Enzo Mangano
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Lev Sarkisov
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
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Phadungbut P, Fan C, Do D, Nicholson D, Tangsathitkulchai C. Determination of absolute adsorption for argon on flat surfaces under sub- and supercritical conditions. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Do D, Johnathan Tan S, Zeng Y, Fan C, Nguyen VT, Horikawa T, Nicholson D. The interplay between molecular layering and clustering in adsorption of gases on graphitized thermal carbon black – Spill-over phenomenon and the important role of strong sites. J Colloid Interface Sci 2015; 446:98-113. [DOI: 10.1016/j.jcis.2015.01.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 01/13/2015] [Accepted: 01/13/2015] [Indexed: 11/27/2022]
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27
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Sultan M, El-Sharkawy II, Miyazaki T, Saha BB, Koyama S, Maruyama T, Maeda S, Nakamura T. Insights of water vapor sorption onto polymer based sorbents. ADSORPTION 2015. [DOI: 10.1007/s10450-015-9663-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Camacho BC, Ribeiro RP, Esteves IA, Mota JP. Adsorption equilibrium of carbon dioxide and nitrogen on the MIL-53(Al) metal organic framework. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2014.11.040] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Physical adsorption of gases: the case for absolute adsorption as the basis for thermodynamic analysis. ADSORPTION 2014. [DOI: 10.1007/s10450-014-9604-1] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mason JA, Veenstra M, Long JR. Evaluating metal–organic frameworks for natural gas storage. Chem Sci 2014. [DOI: 10.1039/c3sc52633j] [Citation(s) in RCA: 889] [Impact Index Per Article: 88.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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31
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Determination of absolute gas adsorption isotherms: simple method based on the potential theory for buoyancy effect correction of pure gas and gas mixtures adsorption. ADSORPTION 2013. [DOI: 10.1007/s10450-013-9579-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Swisher JA, Lin LC, Kim J, Smit B. Evaluating mixture adsorption models using molecular simulation. AIChE J 2013. [DOI: 10.1002/aic.14058] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Joseph A. Swisher
- Dept. of Chemical and Biomolecular Engineering; University of California; Berkeley CA 94720
- Materials Sciences Div.; Lawrence Berkeley National Laboratory; Berkeley CA 94720
| | - Li-Chiang Lin
- Dept. of Chemical and Biomolecular Engineering; University of California; Berkeley CA 94720
- Materials Sciences Div.; Lawrence Berkeley National Laboratory; Berkeley CA 94720
| | - Jihan Kim
- Dept. of Chemical and Biomolecular Engineering; University of California; Berkeley CA 94720
- Materials Sciences Div.; Lawrence Berkeley National Laboratory; Berkeley CA 94720
| | - Berend Smit
- Dept. of Chemistry; University of California; Berkeley CA 94720
- Materials Sciences Div.; Lawrence Berkeley National Laboratory; Berkeley CA 94720
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33
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Herrera L, Fan C, Do DD, Nicholson D. A revisit to the Gibbs dividing surfaces and helium adsorption. ADSORPTION 2011. [DOI: 10.1007/s10450-011-9374-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bimbo N, Ting VP, Hruzewicz-Kołodziejczyk A, Mays TJ. Analysis of hydrogen storage in nanoporous materials for low carbon energy applications. Faraday Discuss 2011; 151:59-74; discussion 95-115. [DOI: 10.1039/c0fd00010h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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