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Shrestha S, Demchuk Z, Polo-Garzon F, Tamraparni A, Damron J, Howard D, Saito T, Sokolov A, Hun D, Gainaru C. An experimental toolbox for the physical characterization of thermal insulating polymeric foams. Heliyon 2024; 10:e36074. [PMID: 39224248 PMCID: PMC11366880 DOI: 10.1016/j.heliyon.2024.e36074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/21/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024] Open
Abstract
Recent advancements in polymer science and manufacturing technologies triggered new developments of porous materials used for mitigating heat losses, such as thermal insulating polymeric foams. The major bottleneck in the optimization of these products, however, remains the absence of analytical methods able to scrutinize their large design space reasonably quickly and cost-effectively. This manuscript targets the paucity of data for polymeric foams by illustrating, at a proof-of-principle level, that several well-established analytical methods including optical microscopy, pycnometry, dielectric spectroscopy, thermogravimetric analysis, and nuclear magnetic resonance can be exploited for an extensive, yet logistically efficient, characterization of these materials. The purpose of this study is thus introducing an experimental platform for the characterization of market foam products and for the development of new polymeric foams with pore sizes that are particularly relevant for industrial and residential thermal insulation. Since this work introduces several new methodologies, it may be used as a guide for both laboratory users and specialists in the field, who may further improve the herein proposed experimental concepts.
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Affiliation(s)
- S. Shrestha
- Buildings and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Z. Demchuk
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - F. Polo-Garzon
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - A. Tamraparni
- Buildings and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - J. Damron
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - D. Howard
- Buildings and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - T. Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - A.P. Sokolov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - D. Hun
- Buildings and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - C. Gainaru
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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2
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Guerrero-Fajardo CA, Giraldo L, Moreno-Piraján JC. Graphene Oxide: Study of Pore Size Distribution and Surface Chemistry Using Immersion Calorimetry. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1492. [PMID: 32751421 PMCID: PMC7466600 DOI: 10.3390/nano10081492] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/21/2020] [Accepted: 07/21/2020] [Indexed: 11/17/2022]
Abstract
In this work, the textural parameters of graphene oxide (GO) and graphite (Gr) samples were determined. The non-local density functional theory (NLDFT) and quenched solid density functional theory (QSDFT) kernels were used to evaluate the pore size distribution (PSD) by modeling the pores as slit, cylinder and slit-cylinder. The PSD results were compared with the immersion enthalpies obtained using molecules with different kinetic diameter (between 0.272 nm and 1.50 nm). Determination of immersion enthalpy showed to track PSD for GO and graphite (Gr), which was used as a comparison solid. Additionally, the functional groups of Gr and GO were determined by the Boehm method. Donor number (DN) Gutmann was used as criteria to establish the relationship between the immersion enthalpy and the parameter of the probe molecules. It was found that according to the Gutmann DN the immersion enthalpy presented different values that were a function of the chemical groups of the materials. Finally, the experimental and modeling results were critically discussed.
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Affiliation(s)
- Carlos A. Guerrero-Fajardo
- Departamento de Química-Grupos de Investigación Aprena y Calorimetría, Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia-sede Bogotá, Cra. 45 No. 26–85, Edificio 451, Bogotá 111321, Colombia; (C.A.G.-F.); (L.G.)
| | - Liliana Giraldo
- Departamento de Química-Grupos de Investigación Aprena y Calorimetría, Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia-sede Bogotá, Cra. 45 No. 26–85, Edificio 451, Bogotá 111321, Colombia; (C.A.G.-F.); (L.G.)
| | - Juan Carlos Moreno-Piraján
- Facultad de Ciencias, Departamento de Química, Universidad de los Andes, Grupo de Investigación en Sólidos Porosos y Calorimetría, Bogotá 111711, Colombia
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3
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Bläker C, Muthmann J, Pasel C, Bathen D. Characterization of Activated Carbon Adsorbents – State of the Art and Novel Approaches. CHEMBIOENG REVIEWS 2019. [DOI: 10.1002/cben.201900008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christian Bläker
- University of Duisburg-Essen Chair of Thermal Process Engineering Lotharstrasse 1 47057 Duisburg Germany
| | - Johanna Muthmann
- University of Duisburg-Essen Chair of Thermal Process Engineering Lotharstrasse 1 47057 Duisburg Germany
| | - Christoph Pasel
- University of Duisburg-Essen Chair of Thermal Process Engineering Lotharstrasse 1 47057 Duisburg Germany
| | - Dieter Bathen
- University of Duisburg-Essen Chair of Thermal Process Engineering Lotharstrasse 1 47057 Duisburg Germany
- Institute of Energy and Environmental Technology IUTA e.V. Bliersheimer Strasse 60 47229 Duisburg Germany
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4
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Do D, Do H. Pore Characterization of Carbonaceous Materials by DFT and GCMC Simulations: A Review. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/026361703769645753] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
A review is given of the pore characterization of carbonaceous materials, including activated carbon, carbon fibres, carbon nanotubes, etc., using adsorption techniques. Since the pores of carbon media are mostly of molecular dimensions, the appropriate modern tools for the analysis of adsorption isotherms are grand canonical Monte Carlo (GCMC) simulations and density functional theory (DFT). These techniques are presented and applications of such tools in the derivation of pore-size distribution highlighted.
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Affiliation(s)
- D.D. Do
- Department of Chemical Engineering, University of Queensland, St. Lucia, Queensland 4072, Australia
| | - H.D. Do
- Department of Chemical Engineering, University of Queensland, St. Lucia, Queensland 4072, Australia
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5
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Zhu JM, Xin F, Sun YC, Dong XC. Phosphonium-based ionic liquids grafted onto silica for CO2 sorption. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2014. [DOI: 10.1134/s0040579514060141] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Torkia YB, Bouaziz N, Al-Muhtaseb SA, Lamine AB. Adsorption Energy and Pore-Size Distributions of Activated Carbons Calculated Using Hill's Model. ADSORPT SCI TECHNOL 2014. [DOI: 10.1260/0263-6174.32.7.571] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Yosra Ben Torkia
- Laboratory of Quantum Physics, UR 11 ES 54, Faculty of Sciences of Monastir, Monastir 5019 Tunisia
| | - Nadia Bouaziz
- Laboratory of Quantum Physics, UR 11 ES 54, Faculty of Sciences of Monastir, Monastir 5019 Tunisia
| | | | - Abdelmottaleb Ben Lamine
- Laboratory of Quantum Physics, UR 11 ES 54, Faculty of Sciences of Monastir, Monastir 5019 Tunisia
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7
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Silvino PFG, Gonçalves DV, Gonçalves RV, de Lucena SMP, Azevedo DCS. Strategies to Improve Pore-Size Distribution Characterization of Activated Carbons Using CO2and N2Isotherms: Volume Regularization and Etched Slit Models. ADSORPT SCI TECHNOL 2013. [DOI: 10.1260/0263-6174.31.2-3.263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- P. F. G. Silvino
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do PICI, Fortaleza, Brasil
| | - D. V. Gonçalves
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do PICI, Fortaleza, Brasil
| | - R. V. Gonçalves
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do PICI, Fortaleza, Brasil
| | - S. M. P. de Lucena
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do PICI, Fortaleza, Brasil
| | - D. C. S. Azevedo
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do PICI, Fortaleza, Brasil
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8
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Effect of the pore geometry in the characterization of the pore size distribution of activated carbons. ADSORPTION 2013. [DOI: 10.1007/s10450-013-9483-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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de Oliveira JC, Rios RB, López RH, Peixoto HR, Cornette V, Torres AEB, Cavalcante CL, Azevedo DC, Zgrablich G. Monte Carlo Simulation Strategies for Predicting CO2/CH4 Adsorption onto Activated Carbons from Pure Gas Isotherms. ADSORPT SCI TECHNOL 2011. [DOI: 10.1260/0263-6174.29.7.651] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- José C.A. de Oliveira
- Instituto de Física Aplicada (INFAP), Universidad Nacional de San Luis-CONICET, Ej. de los Andes 950, 5700 San Luis, Argentina
| | - Rafael B. Rios
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - Raúl H. López
- Instituto de Física Aplicada (INFAP), Universidad Nacional de San Luis-CONICET, Ej. de los Andes 950, 5700 San Luis, Argentina
| | - Hugo R. Peixoto
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - Valéria Cornette
- Instituto de Física Aplicada (INFAP), Universidad Nacional de San Luis-CONICET, Ej. de los Andes 950, 5700 San Luis, Argentina
| | - A. Eurico B. Torres
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - Célio L. Cavalcante
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - Diana C.S. Azevedo
- Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Universidade Federal do Cearà, Campus do PICI, Fortaleza, Brasil
| | - Giorgio Zgrablich
- Instituto de Física Aplicada (INFAP), Universidad Nacional de San Luis-CONICET, Ej. de los Andes 950, 5700 San Luis, Argentina
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Blanco AG, de Oliveira JA, López R, Moreno-Piraján J, Giraldo L, Zgrablich G, Sapag K. A study of the pore size distribution for activated carbon monoliths and their relationship with the storage of methane and hydrogen. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.01.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Peng B, Yu YX. A Density Functional Theory with a Mean-field Weight Function: Applications to Surface Tension, Adsorption, and Phase Transition of a Lennard-Jones Fluid in a Slit-like Pore. J Phys Chem B 2008; 112:15407-16. [DOI: 10.1021/jp805697p] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bo Peng
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China, and State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Yang-Xin Yu
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China, and State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
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12
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Vakarin EV, Duda Y, Badiali JP. Constrained equilibrium as a tool for characterization of deformable porous media. J Phys Chem B 2007; 111:2540-5. [PMID: 17311446 DOI: 10.1021/jp066460h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new method for characterizing the deformable porous materials with noncritical adsorption probes is proposed. The mechanism is based on driving the adsorbate through a sequence of constrained equilibrium states with the insertion isotherms forming a pseudocritical point or a van der Waals-type loop. In the framework of a perturbation theory and Monte Carlo simulations we have found a link between the loop parameters and the host morphology. This allows one to characterize porous matrices through analyzing a shift of the pseudocritical point and a shape of the pseudospinodals.
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Affiliation(s)
- E V Vakarin
- UMR 7575 LECA ENSCP-UPMC, 11 rue P. et M. Curie, 75231 Cedex 05, Paris, France
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13
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Determination of pore size distribution in microporous carbons based on CO2 and H2 sorption data. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s0167-2991(07)80070-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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14
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Sweatman MB, Quirke N. Modelling gas mixture adsorption in active carbons. MOLECULAR SIMULATION 2005. [DOI: 10.1080/08927020500108296] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Adsorption prediction for three binary supercritical gas mixtures on activated carbon based on a NDFT/PSD approach. Chem Eng Sci 2005. [DOI: 10.1016/j.ces.2005.01.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Sweatman MB, Quirke N. Gas Adsorption in Active Carbons and the Slit-Pore Model 1: Pure Gas Adsorption. J Phys Chem B 2005; 109:10381-8. [PMID: 16852258 DOI: 10.1021/jp045273l] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe procedures based on the polydisperse independent ideal slit-pore model, Monte Carlo simulation and density functional theory (a 'slab-DFT') for predicting gas adsorption and adsorption heats in active carbons. A novel feature of this work is the calibration of gas-surface interactions to a high surface area carbon, rather than to a low surface area carbon as in all previous work. Our models are used to predict the adsorption of carbon dioxide, methane, nitrogen, and hydrogen up to 50 bar in several active carbons at a range of near-ambient temperatures based on an analysis of a single 293 K carbon dioxide adsorption isotherm. The results demonstrate that these models are useful for relatively simple gases at near-critical or supercritical temperatures.
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Affiliation(s)
- M B Sweatman
- Department of Chemistry, Imperial College, South Kensington, London, SW7 2AY, UK
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17
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Sweatman MB, Quirke N. Gas Adsorption in Active Carbons and the Slit-Pore Model 2: Mixture Adsorption Prediction with DFT and IAST. J Phys Chem B 2005; 109:10389-94. [PMID: 16852259 DOI: 10.1021/jp045272t] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We use a fast density functional theory (a "slab-DFT") and the polydisperse independent ideal slit-pore model to predict gas mixture adsorption in active carbons. The DFT is parametrized by fitting to pure gas isotherms generated by Monte Carlo simulation of adsorption in model graphitic slit-pores. Accurate gas molecular models are used in our Monte Carlo simulations with gas-surface interactions calibrated to a high surface area carbon, rather than a low surface area carbon as in all previous work of this type, as described in part 1 of this work. We predict the adsorption of binary mixtures of carbon dioxide, methane, and nitrogen on two active carbons up to about 30 bar at near-ambient temperatures. We compare two sets of results; one set obtained using only the pure carbon dioxide adsorption isotherm as input to our pore characterization process, and the other obtained using both pure gas isotherms as input. We also compare these results with ideal adsorbed solution theory (IAST). We find that our methods are at least as accurate as IAST for these relatively simple gas mixtures and have the advantage of much greater versatility. We expect similar results for other active carbons and further performance gains for less ideal mixtures.
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Affiliation(s)
- M B Sweatman
- Department of Chemistry, Imperial College, South Kensington, London, SW7 2AY, UK
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18
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Nguyen TX, Bhatia SK. Characterization of Pore Wall Heterogeneity in Nanoporous Carbons Using Adsorption: the Slit Pore Model Revisited. J Phys Chem B 2004. [DOI: 10.1021/jp049048f] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thanh X. Nguyen
- Division of Chemical Engineering, the University of Queensland, Brisbane, QLD 4072, Australia
| | - Suresh K. Bhatia
- Division of Chemical Engineering, the University of Queensland, Brisbane, QLD 4072, Australia
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19
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Ustinov EA, Staudt R, Do DD, Herbst A, Harting P. Multicomponent adsorption on activated carbons under supercritical conditions. J Colloid Interface Sci 2004; 275:376-85. [PMID: 15178262 DOI: 10.1016/j.jcis.2004.02.071] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2003] [Accepted: 02/25/2004] [Indexed: 10/26/2022]
Abstract
Adsorption of binary mixtures onto activated carbon Norit R1 for the system nitrogen-methane-carbon dioxide was investigated over the pressure range up to 15 MPa. A new model is proposed to describe the experimental data. It is based on the assumption that an activated carbon can be characterized by the distribution function of elements of adsorption volume (EAV) over the solid-fluid potential. This function may be evaluated from pure component isotherms using the equality of the chemical potentials in the adsorbed phase and in the bulk phase for each EAV. In the case of mixture adsorption a simple combining rule is proposed, which allows determining the adsorbed phase density and its composition in the EAV at given pressure and compositions of the bulk phase. The adsorbed concentration of each adsorbate is the integral of its density over the set of EAV. The comparison with experimental data on binary mixtures has shown that the approach works reasonably well. In the case of high-pressure binary mixture adsorption, when only total amount adsorbed was measured, the proposed model allows reliably determining partial amounts of the adsorbed components.
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Affiliation(s)
- E A Ustinov
- Saint Petersburg State Technological Institute (Technical University), 26 Moskovsky Prospect, St. Petersburg, Russia
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20
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Pantatosaki E, Psomadopoulos D, Steriotis T, Stubos A, Papaioannou A, Papadopoulos G. Micropore size distributions from CO2 using grand canonical Monte Carlo at ambient temperatures: cylindrical versus slit pore geometries. Colloids Surf A Physicochem Eng Asp 2004. [DOI: 10.1016/j.colsurfa.2004.04.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Gauden PA, Terzyk AP, Rychlicki G, Kowalczyk P, Cwiertnia MS, Garbacz JK. Estimating the pore size distribution of activated carbons from adsorption data of different adsorbates by various methods. J Colloid Interface Sci 2004; 273:39-63. [PMID: 15051432 DOI: 10.1016/j.jcis.2003.08.033] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2003] [Accepted: 08/20/2003] [Indexed: 10/26/2022]
Abstract
Experimental adsorption isotherms of four adsorbates (N2, Ar, C6H6, and CCl4) as well as adsorption enthalpy (C6H6 and CCl4) measured on two strictly microporous carbons are used to evaluate the porosity of adsorbents (i.e., pore size distributions (PSDs) and average pore diameter ( Lav )). The influence of the diameter of adsorbates ( dA) as well as of the temperature ( T ) is analyzed in order to explain the differences or similarities between the above-mentioned quantities for all systems. Proposed previously, the general relationships between the parameters of the Dubinin-Astakhov (DA) isotherm equation (the characteristic energy of adsorption ( E0 ) and the exponent of this equation ( n )) and the average slit-width of carbon micropores are investigated. Moreover, the thermodynamic verification of the Horvath-Kawazoe (HK) theory and the ND model is presented based on data of the adsorption and enthalpy of adsorption of benzene and carbon tetrachloride on two carbons. Finally, the pore diameters calculated from calorimetry data using the Everett and Powl method and those calculated applying the recently developed equations are compared. In our opinion the change of apparent PSD should be monitored by performing a series of isotherm measurements from high (equal and higher than room temperature) to low temperatures (ca. 77.5 K) as was presented in the current study. Moreover, the analysis of the experimental data leads to the conclusion that the entropy of C6H6 and CCl4 can approach to the values characteristic of quasi-solid (a partially ordered structure). Therefore, this behavior of the adsorbate should be taken into consideration in the theoretical assumptions of model and its thermodynamic verification.
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Affiliation(s)
- Piotr A Gauden
- Physicochemistry of Carbon Materials Research Group, Department of Chemistry, N. Copernicus University, Gagarina 7, 87-100 Toruń, Poland
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22
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Lozano-Castelló D, Cazorla-Amorós D, Linares-Solano A, Quinn DF. Micropore Size Distributions of Activated Carbons and Carbon Molecular Sieves Assessed by High-Pressure Methane and Carbon Dioxide Adsorption Isotherms. J Phys Chem B 2002. [DOI: 10.1021/jp0205564] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Lozano-Castelló
- Departamento de Química Inorgánica, Universidad de Alicante, E-03080, Alicante, Spain
| | - D. Cazorla-Amorós
- Departamento de Química Inorgánica, Universidad de Alicante, E-03080, Alicante, Spain
| | - A. Linares-Solano
- Departamento de Química Inorgánica, Universidad de Alicante, E-03080, Alicante, Spain
| | - D. F. Quinn
- Departamento de Química Inorgánica, Universidad de Alicante, E-03080, Alicante, Spain
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23
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Ohba T, Kaneko K. Internal Surface Area Evaluation of Carbon Nanotube with GCMC Simulation-Assisted N2 Adsorption. J Phys Chem B 2002. [DOI: 10.1021/jp014604g] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- T. Ohba
- Physical Chemistry, Material Science, Graduate School of Natural Science and Technology, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Venture Business Laboratory, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
| | - K. Kaneko
- Physical Chemistry, Material Science, Graduate School of Natural Science and Technology, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Venture Business Laboratory, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
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24
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A Monte Carlo study on the structure of carbon dioxide adsorbed in microporous carbons. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0167-2991(02)80179-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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25
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Sweatman MB, Quirke N. Modelling Gas Adsorption in Slit-Pores Using Monte Carlo Simulation. MOLECULAR SIMULATION 2001. [DOI: 10.1080/08927020108031355] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Samios S, Papadopoulos GK, Steriotis T, Stubos AK. Simulation Study of Sorption of CO2and N2with Application to the Characterization of Carbon Adsorbents. MOLECULAR SIMULATION 2001. [DOI: 10.1080/08927020108031362] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sweatman MB. Weighted density functional theory for simple fluids: supercritical adsorption of a Lennard-Jones fluid in an ideal slit pore. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2001; 63:031102. [PMID: 11308625 DOI: 10.1103/physreve.63.031102] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2000] [Indexed: 05/23/2023]
Abstract
The adsorption of a Lennard-Jones fluid in an ideal slit pore is studied using weighted density functional theory. The intrinsic Helmholtz free-energy functional is separated into repulsive and attractive contributions. Rosenfeld's accurate fundamental measure functional is employed for the repulsive functional while another weighted density functional method is employed for the attractive functional. This other method requires an accurate equation of state for the bulk fluid and an accurate pair-direct correlation function for a uniform fluid, determined analytically or numerically. The results for this theory are compared against mean-field density functional theory and grand canonical ensemble simulation results, modeling the adsorption of ethane in a graphite slit. The results indicate that the weighted density functional method applied to the attractive functional can offer a significant increase in accuracy over the mean-field theory.
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Affiliation(s)
- M B Sweatman
- Department of Chemistry, Imperial College of Science, Technology, and Medicine, London, SW7 2AZ, United Kingdom
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Sweatman MB, Quirke N. Characterization of Porous Materials by Gas Adsorption at Ambient Temperatures and High Pressure. J Phys Chem B 2001. [DOI: 10.1021/jp003308l] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. B. Sweatman
- Department of Chemistry, Imperial College, South Kensington, London, SW7 2AY, U.K
| | - N. Quirke
- Department of Chemistry, Imperial College, South Kensington, London, SW7 2AY, U.K
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Quirke N. Molecular Modelling and Simulation: Tools for the Modern Era. MOLECULAR SIMULATION 2001. [DOI: 10.1080/08927020108024198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Characterization of porous materials using molecular theory and simulation. ADVANCES IN CHEMICAL ENGINEERING VOLUME 28 2001. [DOI: 10.1016/s0065-2377(01)28007-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Kluson P, Scaife S, Quirke N. The design of microporous graphitic adsorbents for selective separation of gases. Sep Purif Technol 2000. [DOI: 10.1016/s1383-5866(00)00070-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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