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Lancheros A, Goswami S, Zarate X, Schott E, Hupp JT. Nitrogen-enriched flexible metal-organic framework for CO 2 adsorption. Dalton Trans 2024; 53:14028-14036. [PMID: 39105635 DOI: 10.1039/d4dt01457j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
A novel MOF named [Zn2(L)(DMF)] was synthesized using solvothermal methods from the reaction of the new linker (4,4',4''-(4,4',4''-(benzene-1,3,5-triyltris(methylene))tris(3,5-dimethyl-1H-pyrazole-4,1-diyl))tribenzoic acid) and Zn(NO3)2·6H2O. This new MOF was characterized by means of different techniques: powder X-ray diffraction, N2 adsorption and desorption isotherms, thermogravimetric analysis, and scanning electron microscopy. Furthermore, suitable crystals were obtained, which allowed us to perform the X-Ray structure determination of this MOF. The capability of these new MOF to adsorb CO2 at different temperatures was measured and its isosteric enthalpy of adsorption was calculated. The novel MOF shows an uncommon node composed of a Zn3(-COO)6(DMF)2, and the asymmetric unit contains one crystallographically independent linker, one DMF molecule, and two Zn atoms. The [Zn2(L)(DMF)] MOF is a microporous material with high crystallinity and stability up to 250 °C. The multiple nitrogenated pyrazole linkers in its framework enhance its CO2 adsorption capabilities. This material exhibits a low CO2 isosteric enthalpy of adsorption (Hads), comparable to previously reported values for similar nitrogenated materials. All the observed CO2 adsorption capacities were further supported by DFT calculations.
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Affiliation(s)
- Andrés Lancheros
- Department of Inorganic Chemistry, Faculty of Chemistry and Pharmacy, UC Energy Center, Center for Research in Nanotechnology and Advanced Materials (CIEN-UC), Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago, Chile.
- ANID - Millennium Science Initiative Program - Millennium Nuclei on Catalytic Process Towards Sustainable Chemistry (CSC), Chile
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
| | - Subhadip Goswami
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
| | - Ximena Zarate
- Institute of Applied Sciences, Faculty of Engineering, Universidad Autónoma de Chile, Av. Pedro de Valdivia 425, Santiago, Chile
| | - Eduardo Schott
- Department of Inorganic Chemistry, Faculty of Chemistry and Pharmacy, UC Energy Center, Center for Research in Nanotechnology and Advanced Materials (CIEN-UC), Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago, Chile.
- ANID - Millennium Science Initiative Program - Millennium Nuclei on Catalytic Process Towards Sustainable Chemistry (CSC), Chile
| | - Joseph T Hupp
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
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2
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Pham TKN, Li S, Brown JJ. Interaction energy and isosteric heat of adsorption between hydrogen and magnesium diboride. Phys Chem Chem Phys 2023; 25:4255-4265. [PMID: 36683432 DOI: 10.1039/d2cp04730f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Hydrogen storage materials form a crucial research topic for future energy utilization employing hydrogen and among those of interest magnesium diboride (MgB2) has shown its prevalence. In this study, a first-principles analytical adsorption model of one hydrogen molecule in the vicinity of various magnesium diboride crystal surfaces was developed in order to obtain surface thermodynamic properties as a function of molecular and lattice properties. Henry's law constant (KH) and isosteric heat of adsorption (ΔHads) indicators of the affinity between a gaseous molecule and a solid surface are thus calculated. The results in this paper not only address questions pertaining to the first stage of hydrogen storage processes but also advance the understanding of physisorption thermodynamics of a neutral molecule (H2) coming in contact with a layered metallic-like surface (MgB2). Although the model is built from a framework of classical calculations, quantum effects are incorporated as the fractional charge of the ions on the free surfaces, which is essential for the calculation of analytic thermodynamic values that approximate calculations from other methods. To benchmark our theoretical models, periodic density functional calculations were performed to determine the interactions between H2 and different MgB2 surfaces from first-principles. By considering both the top and sublayers of MgB2 in calculating interaction energy, we have analytically and computationally calculated the interaction energies of H2 molecules and MgB2's terminated planes, and witnessed the strong dependence of interaction energies on surface charges. We have also observed a dipole flipping phenomenon which explains the discontinuity seen in the interaction energy graph of Mg(0001). Both analytical and computational results showed heat of adsorption at zero coverage varying at a very low range (<7 kJ mol-1).
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Affiliation(s)
- Thi Kieu Ngan Pham
- Department of Mechanical Engineering, University of Hawai'i at Mānoa, Hawai'i 96822, USA.
| | - Sichi Li
- Laboratory for Energy Applications for the Future (LEAF), Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Joseph J Brown
- Department of Mechanical Engineering, University of Hawai'i at Mānoa, Hawai'i 96822, USA.
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3
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Control of the pore chemistry in metal-organic frameworks for efficient adsorption of benzene and separation of benzene/cyclohexane. Chem 2023. [DOI: 10.1016/j.chempr.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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4
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Estimation of isosteric heat of adsorption from generalized Langmuir isotherm. ADSORPTION 2023. [DOI: 10.1007/s10450-023-00379-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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5
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Wilkins NS, Sawada JA, Rajendran A. Diffusion of CH 4 and N 2 in Barium-Exchanged Reduced Pore Zorite (Ba-RPZ) and Zeolite 4A. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01714] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas Stiles Wilkins
- Department of Chemical and Materials Engineering, University of Alberta, 12th Floor, Donadeo Innovation Centre for Engineering (ICE), 9211-116 Street, Edmonton, Alberta, Canada, T6G 1H9
| | - James A. Sawada
- Department of Chemical and Materials Engineering, University of Alberta, 12th Floor, Donadeo Innovation Centre for Engineering (ICE), 9211-116 Street, Edmonton, Alberta, Canada, T6G 1H9
| | - Arvind Rajendran
- Department of Chemical and Materials Engineering, University of Alberta, 12th Floor, Donadeo Innovation Centre for Engineering (ICE), 9211-116 Street, Edmonton, Alberta, Canada, T6G 1H9
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He D, Clowes R, Little MA, Liu M, Cooper AI. Creating porosity in a trianglimine macrocycle by heterochiral pairing. Chem Commun (Camb) 2021; 57:6141-6144. [PMID: 34042126 DOI: 10.1039/d1cc01650d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Macrocycles are usually non-porous or barely porous in the solid-state because of their small intrinsic cavity sizes and tendency to close-pack. Here, we use a heterochiral pairing strategy to introduce porosity in a trianglimine macrocycle, by co-crystallising two macrocycles with opposing chiralities. The stable racemic trianglimine crystal contains an interconnected pore network that has a Brunauer-Emmett-Teller (BET) surface area of 355 m2 g-1.
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Affiliation(s)
- Donglin He
- Materials Innovation Factory and Chemistry Department, University of Liverpool, Liverpool, L7 3NY, UK.
| | - Rob Clowes
- Materials Innovation Factory and Chemistry Department, University of Liverpool, Liverpool, L7 3NY, UK.
| | - Marc A Little
- Materials Innovation Factory and Chemistry Department, University of Liverpool, Liverpool, L7 3NY, UK.
| | - Ming Liu
- Materials Innovation Factory and Chemistry Department, University of Liverpool, Liverpool, L7 3NY, UK.
| | - Andrew I Cooper
- Materials Innovation Factory and Chemistry Department, University of Liverpool, Liverpool, L7 3NY, UK.
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7
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Siperstein FR, Avendaño C, Ortiz JJ, Gil‐Villegas A. Analytic expressions for the isosteric heat of adsorption from adsorption isotherm models and two‐dimensional
SAFT‐VR
equation of state. AIChE J 2021. [DOI: 10.1002/aic.17186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Flor R. Siperstein
- Department of Chemical Engineering and Analytical Science School of Engineering, The University of Manchester Oxford UK
| | - Carlos Avendaño
- Department of Chemical Engineering and Analytical Science School of Engineering, The University of Manchester Oxford UK
| | - Jordan J. Ortiz
- División de Ciencias e Ingenierías, Campus León Universidad de Guanajuato León Guanajuato Mexico
| | - Alejandro Gil‐Villegas
- División de Ciencias e Ingenierías, Campus León Universidad de Guanajuato León Guanajuato Mexico
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9
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Evolution of adsorption isotherm and isosteric heat from sub-triple to super-critical points. ADSORPTION 2021. [DOI: 10.1007/s10450-020-00294-5] [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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Measurement of competitive $$\text {CO}_{2}$$ and $$\text {H}_{2}\text {O}$$ adsorption on zeolite 13X for post-combustion $$\text {CO}_{2}$$ capture. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00199-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Nuhnen A, Janiak C. A practical guide to calculate the isosteric heat/enthalpy of adsorption via adsorption isotherms in metal-organic frameworks, MOFs. Dalton Trans 2020; 49:10295-10307. [PMID: 32661527 DOI: 10.1039/d0dt01784a] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Porous materials such as MOFs are interesting candidates for gas separation and storage. An important parameter to gain deeper insights to the adsorption process of an adsorptive on an adsorbent is the isosteric enthalpy of adsorption, ΔHads which is defined as the heat to be released/required when an adsorptive binds to/detaches from the solid surface of an adsorbent. Two or three adsorption isotherms at different but close temperatures with ΔT ≤ 20 K for two and ΔT ≈ 10 K for three isotherms are the basis to derive the isosteric enthalpy of adsorption through the Clausius-Clapeyron approach or the virial analysis. This Perspective presents the procedure of the common (dual-site) Freundlich-Langmuir fit/Clausius-Clapeyron approach and the virial fit of the isotherms with usable Excel sheets and Origin files for the subsequent derivation of ΔHads. Exemplary adsorption isotherms of CO2, SO2 and H2 at two temperatures on MOFs are analyzed. The detailed computational description and comparison of the Clausius-Clapeyron approach and the virial analysis to determine ΔHads outlines the limitations of the two methods with respect to the available experimental data, especially at low pressure/low uptake values. It is emphasized that no extrapolation beyond the experimental data range should be done. The quality of the important and underlying isotherm fits must be checked and ensured with logarithmic-scale n/p isotherm plots for the (dual-site) Freundlich-Langmuir fit in the low-pressure region and through low standard deviations for the coefficients in the virial analysis.
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Affiliation(s)
- Alexander Nuhnen
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, D-40204 Düsseldorf, Germany.
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, D-40204 Düsseldorf, Germany.
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12
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Model development for the separation of a strongly adsorbing gas mixture on a semi-pilot scale adsorber. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Measurement of competitive CO2 and N2 adsorption on Zeolite 13X for post-combustion CO2 capture. ADSORPTION 2019. [DOI: 10.1007/s10450-018-00004-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Gautier R, Dbouk T, Harion JL, Hamon L, Pré P. Pressure-swing-adsorption of gaseous mixture in isotropic porous medium: Numerical sensitivity analysis in CFD. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2017.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Plaza MG, Durán I, Querejeta N, Rubiera F, Pevida C. Experimental and Simulation Study of Adsorption in Postcombustion Conditions Using a Microporous Biochar. 1. CO2 and N2 Adsorption. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04856] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marta G. Plaza
- Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
| | - Inés Durán
- Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
| | - Nausika Querejeta
- Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
| | - Fernando Rubiera
- Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
| | - Covadonga Pevida
- Instituto Nacional del Carbón, INCAR-CSIC, Apartado 73, 33080 Oviedo, Spain
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16
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Silva JAC, Rodrigues AE. Limitations of the Zero-Length Column Technique to Measure Diffusional Time Constants in Microporous Adsorbents. Chem Eng Technol 2015. [DOI: 10.1002/ceat.201500252] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Lu L, Zhu Y, Wu X, Wang S, Cao W, Lu X. Adsorption of N-Butane/I-Butane in Zeolites: Simulation and Theory Study. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2013.878848] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Nuñez AJ, Chang MS, Ibarra IA, Humphrey SM. Tuning the Host–Guest Interactions in a Phosphine Coordination Polymer through Different Types of post-Synthetic Modification. Inorg Chem 2013; 53:282-8. [DOI: 10.1021/ic4022239] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ana J. Nuñez
- Department of Chemistry, The University of Texas at Austin, 105
E 24th Street A5300, Welch Hall 2.204, Austin, Texas 78712-1224, United States
| | - Maxwell S. Chang
- Department of Chemistry, The University of Texas at Austin, 105
E 24th Street A5300, Welch Hall 2.204, Austin, Texas 78712-1224, United States
| | - Ilich A. Ibarra
- Department of Chemistry, The University of Texas at Austin, 105
E 24th Street A5300, Welch Hall 2.204, Austin, Texas 78712-1224, United States
| | - Simon M. Humphrey
- Department of Chemistry, The University of Texas at Austin, 105
E 24th Street A5300, Welch Hall 2.204, Austin, Texas 78712-1224, United States
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19
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Liu D, Lin Y, Li Z, Xi H. Adsorption and separation of CH4/H2 in MIL-101s by molecular simulation study. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2013.05.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Caglayan BS, Aksoylu AE. CO2 adsorption on chemically modified activated carbon. JOURNAL OF HAZARDOUS MATERIALS 2013; 252-253:19-28. [PMID: 23500788 DOI: 10.1016/j.jhazmat.2013.02.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 01/30/2013] [Accepted: 02/13/2013] [Indexed: 06/01/2023]
Abstract
CO2 adsorption capacity of a commercial activated carbon was improved by using HNO3 oxidation, air oxidation, alkali impregnation and heat treatment under helium gas atmosphere. The surface functional groups produced were investigated by diffuse reflectance infrared Fourier transform spectrometer (DRIFTS). CO2 adsorption capacities of the samples were determined by gravimetric analyses for 25-200°C temperature range. DRIFTS studies revealed the formation of carboxylic acid groups on the HNO3 oxidized adsorbents. Increased aromatization and uniform distribution of the Na particles were observed on the samples prepared by Na2CO3 impregnation onto HNO3 oxidized AC support. The adsorption capacities of the nonimpregnated samples were increased by high temperature helium treatments or by increasing the adsorption temperature; both leading to decomposition of surface oxygen groups, forming sites that can easily adsorb CO2. The adsorption capacity loss due to cyclic adsorption/desorption procedures was overcome with further surface stabilization of Na2CO3 modified samples with high temperature He treatments. With Na2CO3 impregnation the mass uptakes of the adsorbents at 20 bars and 25 °C were improved by 8 and 7 folds and at 1 bar were increased 15 and 16 folds, on the average, compared to their air oxidized and nitric acid oxidized supports, respectively.
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Affiliation(s)
- Burcu Selen Caglayan
- Department of Chemical Engineering, Bogazici University, 34342 Bebek, Istanbul, Turkey
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21
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Wang X, Song C. Temperature-programmed desorption of CO2 from polyethylenimine-loaded SBA-15 as molecular basket sorbents. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.08.008] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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XU D, Xiao P, LI G, ZHANG J, Webley P, ZHAI Y. CO2 Capture by Vacuum Swing Adsorption Using F200 and Sorbead WS as Protective Pre-layers. Chin J Chem Eng 2012. [DOI: 10.1016/s1004-9541(12)60409-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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24
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Textural Characterization and Energetics of Porous Solids by Adsorption Calorimetry. ENERGIES 2011. [DOI: 10.3390/en4060928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Characterization of Mordenite-Supported Pd, Pt, and Ir Determined by CO Adsorption Microcalorimetry and the Dehydrogenation Reaction of C3 Alkanes. Top Catal 2011. [DOI: 10.1007/s11244-011-9632-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Giraldo L, Moreno-Piraján JC. Novel Activated Carbon Monoliths for Methane Adsorption Obtained from Coffee Husks. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/msa.2011.25043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Martín CF, Stöckel E, Clowes R, Adams DJ, Cooper AI, Pis JJ, Rubiera F, Pevida C. Hypercrosslinked organic polymer networks as potential adsorbents for pre-combustion CO2 capture. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03534c] [Citation(s) in RCA: 273] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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28
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Tedds S, Walton A, Broom DP, Book D. Characterisation of porous hydrogen storage materials: carbons, zeolites, MOFs and PIMs. Faraday Discuss 2011; 151:75-94; discussion 95-115. [DOI: 10.1039/c0fd00022a] [Citation(s) in RCA: 69] [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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29
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Biswas MM, Cagin T. Simulation Studies on Hydrogen Sorption and Its Thermodynamics in Covalently Linked Carbon Nanotube Scaffold. J Phys Chem B 2010; 114:13752-63. [DOI: 10.1021/jp1027806] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mousumi Mani Biswas
- Artie McFerrin Department of Chemical Engineering, and Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77845-3122 United States
| | - Tahir Cagin
- Artie McFerrin Department of Chemical Engineering, and Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77845-3122 United States
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30
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Bolboli Nojini Z, Abbas Rafati A, Majid Hashemianzadeh S, Samiee S. Predicting helium and neon adsorption and separation on carbon nanotubes by Monte Carlo simulation. J Mol Model 2010; 17:785-94. [DOI: 10.1007/s00894-010-0769-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Accepted: 05/25/2010] [Indexed: 11/29/2022]
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31
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Li G, Xiao P, Webley P. Binary adsorption equilibrium of carbon dioxide and water vapor on activated alumina. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:10666-10675. [PMID: 19678623 DOI: 10.1021/la901107s] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Adsorption equilibria of a CO2/H2O binary mixture on activated alumina F-200 were measured at several temperatures and over a wide range of concentrations from 4% to around 90% of the saturated water vapor pressure. In comparison with the single-component data, the loading of CO2 was not reduced in the presence of H2O, whereas at low relative humidity the adsorption of H2O was depressed. The binary system was described by a competitive/cooperative adsorption model where the readily adsorbed water layers acted as secondary sites for further CO2 adsorption via hydrogen bonding or hydration reaction. The combination of kinetic models, namely, a Langmuir isotherm for characterizing pure CO2 adsorption and a BET isotherm for H2O, was extended to derive a binary adsorption equilibrium model for the CO2/H2O mixture. Models based on the ideal adsorbed solution theory of Myers and Prausnitz failed to characterize the data over the whole composition range, and a large deviation of binary CO2/H2O equilibrium from ideal solution behavior was observed. The extended Langmuir-BET (LBET) isotherm, analogous to the extended Langmuir equation, drastically underestimated the CO2 loading. By incorporating the interactions between CO2 and H2O molecules on the adsorbent surface and taking into account the effect of nonideality, the realistic interactive LBET (R-LBET) model was found to be in very good agreement with the experimental data. The derived binary isosteric heat of adsorption showed that the heat was reduced by competitive adsorption but promoted by cooperative adsorption.
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Affiliation(s)
- Gang Li
- Cooperative Research Centre for Greenhouse Gas Technologies, Department of Chemical Engineering, Monash University, Wellington Road, Clayton, Victoria 3168, Australia
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32
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Gritti F, Guiochon G. Isosteric heat of adsorption in liquid–solid equilibria: Theoretical determination and measurement by liquid chromatography/mass spectrometry. J Chromatogr A 2009; 1216:4745-51. [DOI: 10.1016/j.chroma.2009.04.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2008] [Revised: 04/01/2009] [Accepted: 04/09/2009] [Indexed: 10/20/2022]
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33
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Giraldo L, Moreno-Piraján J. Synthesis of Activated Carbon Honeycomb Monoliths under Different Conditions for the Adsorption of Methane. ADSORPT SCI TECHNOL 2009. [DOI: 10.1260/026361709789868901] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Liliana Giraldo
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - J.C. Moreno-Piraján
- Grupo de Investigación en Sólidos Porosos y Calorimetría, Departamento de Química, Facultad de Ciencias, Universidad de Los Andes, Carrera 1 No 18 A 10, Bogotá, Colombia
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34
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Kim DJ. Adsorption isotherms of 2,2,4-trimethylpentane and toluene vapors on hydrocarbon adsorber and light-off catalyst. J Colloid Interface Sci 2004; 269:290-5. [PMID: 14654386 DOI: 10.1016/j.jcis.2003.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Two monolithic hydrocarbon adsorbers and a monolithic light-off catalyst were selected as adsorbents, and the adsorptive capacity of a hydrocarbon for the adsorbents was measured by using a precise volumetric adsorption apparatus. 2,2,4-Trimethylpentane and toluene vapors were chosen as adsorbates. Equilibrium experiments were carried out at three different temperatures of 303.15, 323.15, and 343.15 K. Adsorption data of each hydrocarbon was fitted to the well-known isotherms such as the Langmuir equation and the Freundlich equation. The Freundlich isotherm predicted equilibrium data better than the Langmuir isotherm. Furthermore, the surface energetic heterogeneity of the adsorbents was evaluated using the isosteric heat of adsorption based on Clausius-Clapeyron equation. The surface energetic heterogeneity of the adsorbents depended on the precious metal (PM) loading and H-ZSM5 loading.
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Affiliation(s)
- Dae Jung Kim
- Department of Molecular Science and Technology, Ajou University, 442-749, Suwon, South Korea.
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Walton KS, LeVan MD. Consistency of Energy and Material Balances for Bidisperse Particles in Fixed-Bed Adsorption and Related Applications. Ind Eng Chem Res 2003. [DOI: 10.1021/ie0303855] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Krista S. Walton
- Department of Chemical Engineering, Vanderbilt University, Nashville, Tennessee 37235
| | - M. Douglas LeVan
- Department of Chemical Engineering, Vanderbilt University, Nashville, Tennessee 37235
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