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Sardo M, Morais T, Soares M, Vieira R, Ilkaeva M, Lourenço MAO, Marín-Montesinos I, Mafra L. Unravelling the structure of CO 2 in silica adsorbents: an NMR and computational perspective. Chem Commun (Camb) 2024; 60:4015-4035. [PMID: 38525497 PMCID: PMC11003455 DOI: 10.1039/d3cc05942a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
This comprehensive review describes recent advancements in the use of solid-state NMR-assisted methods and computational modeling strategies to unravel gas adsorption mechanisms and CO2 speciation in porous CO2-adsorbent silica materials at the atomic scale. This work provides new perspectives for the innovative modifications of these materials rendering them more amenable to the use of advanced NMR methods.
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Affiliation(s)
- Mariana Sardo
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tiago Morais
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemistry, University of Iceland, Science Institute, Dunhaga 3, 107 Reykjavik, Iceland
| | - Márcio Soares
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ricardo Vieira
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Marina Ilkaeva
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemical and Environmental Engineering, University of Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain
| | - Mirtha A O Lourenço
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ildefonso Marín-Montesinos
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Luís Mafra
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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2
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Chakrabarty S, Jasuja K. Insights into the Unanticipated Chemical Reactivity of Functionalized Nanosheets Derived from TiB 2. Inorg Chem 2024; 63:1524-1536. [PMID: 38064651 DOI: 10.1021/acs.inorgchem.3c03010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Titanium diboride (TiB2) is a member of the AlB2-type layered metal boride family; the materials of this family are receiving renewed research interest owing to their amenability to nanoscaling. Earlier, we showed that TiB2 can be nanoscaled to yield quasi 2D nanostructures following a dissolution-recrystallization approach. This approach yielded nanosheets that were chemically functionalized with oxy-functional groups. Also, these nanosheets could inherently form a gel-like substance. In this work, we show that these functionalized nanosheets can interact with ascorbic acid in a way that first imparts a characteristic orange hue to the original yellowish nanosheet dispersion. Second, this interaction results in the loss of gel-like behavior of the nanosheet dispersion. We utilize several spectroscopic techniques such as UV-visible, FT-IR, NMR, EPR, XPS, and XANES to unravel this unexplored chemical interaction. The findings show that both titania as well as oxy-boron species react with ascorbic acid, leading to a profound modification of the nanosheets. This modification results in an augmented electrochemical response, implying that the modified nanosheets can be used in novel applications. This study is therefore a step toward gaining an even deeper understanding of the chemical opportunities that these nanoscaled borides can provide.
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Affiliation(s)
- Satadru Chakrabarty
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, 382055 Gujarat, India
| | - Kabeer Jasuja
- Department of Chemical Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar, 382055 Gujarat, India
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3
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Rim G, Priyadarshini P, Song M, Wang Y, Bai A, Realff MJ, Lively RP, Jones CW. Support Pore Structure and Composition Strongly Influence the Direct Air Capture of CO 2 on Supported Amines. J Am Chem Soc 2023; 145:7190-7204. [PMID: 36972200 PMCID: PMC10080690 DOI: 10.1021/jacs.2c12707] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Indexed: 03/29/2023]
Abstract
A variety of amine-impregnated porous solid sorbents for direct air capture (DAC) of CO2 have been developed, yet the effect of amine-solid support interactions on the CO2 adsorption behavior is still poorly understood. When tetraethylenepentamine (TEPA) is impregnated on two different supports, commercial γ-Al2O3 and MIL-101(Cr), they show different trends in CO2 sorption when the temperature (-20 to 25 °C) and humidity (0-70% RH) of the simulated air stream are varied. In situ IR spectroscopy is used to probe the mechanism of CO2 sorption on the two supported amine materials, with weak chemisorption (formation of carbamic acid) being the dominant pathway over MIL-101(Cr)-supported TEPA and strong chemisorption (formation of carbamate) occurring over γ-Al2O3-supported TEPA. Formation of both carbamic acid and carbamate species is enhanced over the supported TEPA materials under humid conditions, with the most significant enhancement observed at -20 °C. However, while equilibrium H2O sorption is high at cold temperatures (e.g., -20 °C), the effect of humidity on a practical cyclic DAC process is expected to be minimal due to slow H2O uptake kinetics. This work suggests that the CO2 capture mechanisms of impregnated amines can be controlled by adjusting the degree of amine-solid support interaction and that H2O adsorption behavior is strongly affected by the properties of the support materials. Thus, proper selection of solid support materials for amine impregnation will be important for achieving optimized DAC performance under varied deployment conditions, such as cold (e.g., -20 °C) or ambient temperature (e.g., 25 °C) operations.
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Affiliation(s)
- Guanhe Rim
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
| | - Pranjali Priyadarshini
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
| | - MinGyu Song
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
| | - Yuxiang Wang
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
| | - Andrew Bai
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
| | - Matthew J. Realff
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
| | - Ryan P. Lively
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
| | - Christopher W. Jones
- School of Chemical & Biomolecular
Engineering, Georgia Institute of Technology, 311 Ferst Dr., Atlanta, Georgia 30332-0100, United States
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4
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Berge AH, Pugh SM, Short MIM, Kaur C, Lu Z, Lee JH, Pickard CJ, Sayari A, Forse AC. Revealing carbon capture chemistry with 17-oxygen NMR spectroscopy. Nat Commun 2022; 13:7763. [PMID: 36522319 PMCID: PMC9755136 DOI: 10.1038/s41467-022-35254-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 11/21/2022] [Indexed: 12/23/2022] Open
Abstract
Carbon dioxide capture is essential to achieve net-zero emissions. A hurdle to the design of improved capture materials is the lack of adequate tools to characterise how CO2 adsorbs. Solid-state nuclear magnetic resonance (NMR) spectroscopy is a promising probe of CO2 capture, but it remains challenging to distinguish different adsorption products. Here we perform a comprehensive computational investigation of 22 amine-functionalised metal-organic frameworks and discover that 17O NMR is a powerful probe of CO2 capture chemistry that provides excellent differentiation of ammonium carbamate and carbamic acid species. The computational findings are supported by 17O NMR experiments on a series of CO2-loaded frameworks that clearly identify ammonium carbamate chain formation and provide evidence for a mixed carbamic acid - ammonium carbamate adsorption mode. We further find that carbamic acid formation is more prevalent in this materials class than previously believed. Finally, we show that our methods are readily applicable to other adsorbents, and find support for ammonium carbamate formation in amine-grafted silicas. Our work paves the way for investigations of carbon capture chemistry that can enable materials design.
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Affiliation(s)
- Astrid H Berge
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Suzi M Pugh
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Marion I M Short
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Chanjot Kaur
- Centre for Catalysis Research and Innovation (CCRI), Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Ziheng Lu
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK
| | - Jung-Hoon Lee
- Computational Science Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Chris J Pickard
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK
- Advanced Institute for Materials Research, Tohoku University, Aoba, Sendai, 980-8577, Japan
| | - Abdelhamid Sayari
- Centre for Catalysis Research and Innovation (CCRI), Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Alexander C Forse
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
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5
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Hack J, Maeda N, Meier DM. Review on CO 2 Capture Using Amine-Functionalized Materials. ACS OMEGA 2022; 7:39520-39530. [PMID: 36385890 PMCID: PMC9647976 DOI: 10.1021/acsomega.2c03385] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
CO2 capture from industry sectors or directly from the atmosphere is drawing much attention on a global scale because of the drastic changes in the climate and ecosystem which pose a potential threat to human health and life on Earth. In the past decades, CO2 capture technology relied on classical liquid amine scrubbing. Due to its high energy consumption and corrosive property, CO2 capture using solid materials has recently come under the spotlight. A variety of porous solid materials were reported such as zeolites and metal-organic frameworks. However, amine-functionalized porous materials outperform all others in terms of CO2 adsorption capacity and regeneration efficiency. This review provides a brief overview of CO2 capture by various amines and mechanistic aspects for newcomers entering into this field. This review also covers a state-of-the-art regeneration method, visible/UV light-triggered CO2 desorption at room temperature. In the last section, the current issues and future perspectives are summarized.
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6
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Lee ZR, Quinn LJ, Jones CW, Hayes SE, Dixon DA. Predicting the Mechanism and Products of CO 2 Capture by Amines in the Presence of H 2O. J Phys Chem A 2021; 125:9802-9818. [PMID: 34748350 DOI: 10.1021/acs.jpca.1c05950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An extensive correlated molecular orbital theory study of the reactions of CO2 with a range of substituted amines and H2O in the gas phase and aqueous solution was performed at the G3(MP2) level with a self-consistent reaction field approach. The G3(MP2) calculations were benchmarked at the CCSD(T)/CBS level for NH3 reactions. A catalytic NH3 reduces the energy barrier more than a catalytic H2O for the formation of H2NCOOH and H2CO3. In aqueous solution, the barriers to form both H2NCOOH and H2CO3 are reduced, with HCO3- formation possible with one amine present and H2NCOO- formation possible only with two amines. Further reactions of H2NCOOH to form HNCO and urea via the Bazarov reaction have high barriers and are unlikely in both the gas phase and aqueous solution. Reaction coordinates for CH3NH2, CH3CH2NH2, (CH3)2NH, CH3CH2CH2NH2, (CH3)3N, and DMAP were also calculated. The barrier for proton transfer correlates with amine basicity for alkylammonium carbamate (ΔG‡aq < 15 kcal/mol) and alkylammonium bicarbonate (ΔG‡aq < 30 kcal/mol) formation. In aqueous solution, carbamic acids, carbamates, and bicarbonates can all form in small amounts with ammonium carbamates dominating for primary and secondary alkylamines. These results have implications for CO2 capture by amines in both the gas phase and aqueous solution as well as in the solid state, if enough water is present.
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Affiliation(s)
- Zachary R Lee
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States.,Department of Biology and Chemistry, Morehead State University, Morehead, Kentucky 40351, United States
| | - La'Darious J Quinn
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Christopher W Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Sophia E Hayes
- Department of Chemistry, Washington University, 1 Brookings Drive, Saint Louis, Missouri 63130, United States
| | - David A Dixon
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
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7
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Başaran K, Topçubaşı BU, Davran-Candan T. Theoretical investigation of CO2 adsorption mechanism over amine-functionalized mesoporous silica. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101492] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Sardo M, Afonso R, Juźków J, Pacheco M, Bordonhos M, Pinto ML, Gomes JRB, Mafra L. Unravelling moisture-induced CO 2 chemisorption mechanisms in amine-modified sorbents at the molecular scale. JOURNAL OF MATERIALS CHEMISTRY. A 2021; 9:5542-5555. [PMID: 34671479 PMCID: PMC8459418 DOI: 10.1039/d0ta09808f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 01/08/2021] [Indexed: 05/03/2023]
Abstract
This work entails a comprehensive solid-state NMR and computational study of the influence of water and CO2 partial pressures on the CO2-adducts formed in amine-grafted silica sorbents. Our approach provides atomic level insights on hypothesised mechanisms for CO2 capture under dry and wet conditions in a tightly controlled atmosphere. The method used for sample preparation avoids the use of liquid water slurries, as performed in previous studies, enabling a molecular level understanding, by NMR, of the influence of controlled amounts of water vapor (down to ca. 0.7 kPa) in CO2 chemisorption processes. Details on the formation mechanism of moisture-induced CO2 species are provided aiming to study CO2 : H2O binary mixtures in amine-grafted silica sorbents. The interconversion between distinct chemisorbed CO2 species was quantitatively monitored by NMR under wet and dry conditions in silica sorbents grafted with amines possessing distinct bulkiness (primary and tertiary). Particular attention was given to two distinct carbonyl environments resonating at δ C ∼161 and 155 ppm, as their presence and relative intensities are greatly affected by moisture depending on the experimental conditions. 1D and 2D NMR spectral assignments of both these 13C resonances were assisted by density functional theory calculations of 1H and 13C chemical shifts on model structures of alkylamines grafted onto the silica surface that validated various hydrogen-bonded CO2 species that may occur upon formation of bicarbonate, carbamic acid and alkylammonium carbamate ion pairs. Water is a key component in flue gas streams, playing a major role in CO2 speciation, and this work extends the current knowledge on chemisorbed CO2 structures and their stabilities under dry/wet conditions, on amine-modified solid surfaces.
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Affiliation(s)
- Mariana Sardo
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Rui Afonso
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Joanna Juźków
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Marlene Pacheco
- CERENA, Instituto Superior Técnico, University of Lisbon Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Marta Bordonhos
- CERENA, Instituto Superior Técnico, University of Lisbon Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Moisés L Pinto
- CERENA, Instituto Superior Técnico, University of Lisbon Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - José R B Gomes
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Luís Mafra
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal
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9
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Klinkenberg N, Kraft S, Polarz S. Great Location: About Effects of Surface Bound Neighboring Groups for Passive and Active Fine-Tuning of CO 2 Adsorption Properties in Model Carbon Capture Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007734. [PMID: 33470469 DOI: 10.1002/adma.202007734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Improved carbon capture materials are crucial for managing the CO2 level in the atmosphere. The past focus was on increasing adsorption capacities. It is widely known that controlling the heat of adsorption (ΔHads ) is equally important. If it is too low, CO2 uptake takes place at unfavorable conditions and with insufficient selectivity. If it is too high, chemisorption occurs, and the materials can hardly be regenerated. The conventional approach for influencing ΔHads is the modification of the adsorbing center. This paper proposes an alternative strategy. The hypothesis is that fine-tuning of the molecular environment around the adsorbing center is a powerful tool for the adjustment of CO2 -binding properties. Via click chemistry, any desired neighboring group (NG) can be incorporated on the surfaces of the nanoporous organosilica model materials. Passive NGs induce a change in the polarity of the surface, whereas active NGs are capable of direct interaction with the active center/CO2 pair. The effects on ΔHads and on the selectivity are studied. A situation can be realized which resembles frustrated Lewis acid-base pairs, and the investigation of the binding-species by solid-state NMR indicates that the push-pull effects could play an essential role not only in CO2 adsorption but also in its activation.
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Affiliation(s)
- Nele Klinkenberg
- Department of Chemistry, University of Konstanz, Universitätsstr. 10, Konstanz, 78464, Germany
| | - Sophia Kraft
- Department of Chemistry, University of Konstanz, Universitätsstr. 10, Konstanz, 78464, Germany
| | - Sebastian Polarz
- Department of Chemistry, University of Konstanz, Universitätsstr. 10, Konstanz, 78464, Germany
- Institute of Inorganic Chemistry, Leibniz University Hannover, Callinstr. 9, Hannover, 30167, Germany
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10
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Ben Shir I, Kababya S, Zax DB, Schmidt A. Resilient Intracrystalline Occlusions: A Solid-State NMR View of Local Structure as It Tunes Bulk Lattice Properties. J Am Chem Soc 2020; 142:13743-13755. [PMID: 32689791 PMCID: PMC7586327 DOI: 10.1021/jacs.0c03590] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 11/30/2022]
Abstract
In many marine organisms, biomineralization-the crystallization of calcium-based ionic lattices-demonstrates how regulated processes optimize for diverse functions, often via incorporation of agents from the precipitation medium. We study a model system consisting of l-aspartic acid (Asp) which when added to the precipitation solution of calcium carbonate crystallizes the thermodynamically disfavored polymorph vaterite. Though vaterite is at best only kinetically stable, that stability is tunable, as vaterite grown with Asp at high concentration is both thermally and temporally stable, while vaterite grown at 10-fold lower Asp concentration, yet 2-fold less in the crystal, spontaneously transforms to calcite. Solid-state NMR shows that Asp is sparsely occluded within vaterite and calcite. CP-REDOR NMR reveals that each Asp is embedded in a perturbed occlusion shell of ∼8 disordered carbonates which bridge to the bulk. In both the as-deposited vaterites and the evolved calcite, the perturbed shell contains two sets of carbonate species distinguished by their proximity to the amine and identifiable based on 13C chemical shifts. The embedding shell and the occluded Asp act as an integral until which minimally rearranges even as the bulk undergoes extensive reorganization. The resilience of these occlusion units suggests that large Asp-free domains drive the vaterite to calcite transformation-which are retarded by the occlusion units, resulting in concentration-dependent lattice stability. Understanding the structure and properties of the occlusion unit, uniquely amenable to ssNMR, thus appears to be a key to explaining other macroscopic properties, such as hardness.
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Affiliation(s)
- Ira Ben Shir
- Schulich
Faculty of Chemistry and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Shifi Kababya
- Schulich
Faculty of Chemistry and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - David B. Zax
- Department
of Chemistry & Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Asher Schmidt
- Schulich
Faculty of Chemistry and Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Technion City, Haifa 32000, Israel
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11
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Siegelman RL, Milner PJ, Forse AC, Lee JH, Colwell KA, Neaton JB, Reimer JA, Weston SC, Long JR. Water Enables Efficient CO 2 Capture from Natural Gas Flue Emissions in an Oxidation-Resistant Diamine-Appended Metal-Organic Framework. J Am Chem Soc 2019; 141:13171-13186. [PMID: 31348649 DOI: 10.1021/jacs.9b05567] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Supported by increasingly available reserves, natural gas is achieving greater adoption as a cleaner-burning alternative to coal in the power sector. As a result, carbon capture and sequestration from natural gas-fired power plants is an attractive strategy to mitigate global anthropogenic CO2 emissions. However, the separation of CO2 from other components in the flue streams of gas-fired power plants is particularly challenging due to the low CO2 partial pressure (∼40 mbar), which necessitates that candidate separation materials bind CO2 strongly at low partial pressures (≤4 mbar) to capture ≥90% of the emitted CO2. High partial pressures of O2 (120 mbar) and water (80 mbar) in these flue streams have also presented significant barriers to the deployment of new technologies for CO2 capture from gas-fired power plants. Here, we demonstrate that functionalization of the metal-organic framework Mg2(dobpdc) (dobpdc4- = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate) with the cyclic diamine 2-(aminomethyl)piperidine (2-ampd) produces an adsorbent that is capable of ≥90% CO2 capture from a humid natural gas flue emission stream, as confirmed by breakthrough measurements. This material captures CO2 by a cooperative mechanism that enables access to a large CO2 cycling capacity with a small temperature swing (2.4 mmol CO2/g with ΔT = 100 °C). Significantly, multicomponent adsorption experiments, infrared spectroscopy, magic angle spinning solid-state NMR spectroscopy, and van der Waals-corrected density functional theory studies suggest that water enhances CO2 capture in 2-ampd-Mg2(dobpdc) through hydrogen-bonding interactions with the carbamate groups of the ammonium carbamate chains formed upon CO2 adsorption, thereby increasing the thermodynamic driving force for CO2 binding. In light of the exceptional thermal and oxidative stability of 2-ampd-Mg2(dobpdc), its high CO2 adsorption capacity, and its high CO2 capture rate from a simulated natural gas flue emission stream, this material is one of the most promising adsorbents to date for this important separation.
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Affiliation(s)
| | | | | | | | | | - Jeffrey B Neaton
- Kavli Energy Nanosciences Institute at Berkeley , Berkeley , California 94720 , United States
| | | | - Simon C Weston
- Corporate Strategic Research , ExxonMobil Research and Engineering Company , Annandale , New Jersey 08801 , United States
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12
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Ghindes-Azaria L, Melamed O, Nadav-Tsubery M, Levy E, Keinan-Adamsky K, Goobes G. Dynamics in hydrophilic and hydrophobic molecular chains tethered to MCM41-type mesoporous silica upon wetting and dehydration processes. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019; 98:24-35. [PMID: 30738232 DOI: 10.1016/j.ssnmr.2019.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Surface modified mesoporous silica materials are important materials for heterogeneous catalysis and are attracting attention as potential drug carriers. The functionality of these materials relies on the physical and chemical properties of the tethers attached to MCM41 silica surface. These chemically linked tails act as molecular brushes, that can capture pollutant molecules, anchor points for catalysts and can host drug molecules. To utilize the full potential of the tailored silica surfaces, one should infer their properties at different levels of solvation. Here, 1H MAS NMR spectroscopy is used to monitor the dynamic properties of two modified MCM41 materials, an aminopropyl tethered MCM41 and an octyl tethered MCM41, through the process of controlled hydration. The surface site resolved measurements demonstrate how the chemical nature of the two tethers governs the way water molecules are directed to the different sites in the porous materials.
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Affiliation(s)
- Lee Ghindes-Azaria
- Department of Chemistry, Bar Ilan University, Ramat Gan, 5290002, Israel
| | - Ofer Melamed
- The Center for Academic Studies, Or Yehuda, 6021816, Israel
| | | | - Esthy Levy
- Department of Chemistry, Bar Ilan University, Ramat Gan, 5290002, Israel
| | | | - Gil Goobes
- Department of Chemistry, Bar Ilan University, Ramat Gan, 5290002, Israel.
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13
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Afonso R, Sardo M, Mafra L, Gomes JRB. Unravelling the Structure of Chemisorbed CO 2 Species in Mesoporous Aminosilicas: A Critical Survey. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:2758-2767. [PMID: 30730709 DOI: 10.1021/acs.est.8b05978] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Chemisorbent materials, based on porous aminosilicas, are among the most promising adsorbents for direct air capture applications, one of the key technologies to mitigate carbon emissions. Herein, a critical survey of all reported chemisorbed CO2 species, which may form in aminosilica surfaces, is performed by revisiting and providing new experimental proofs of assignment of the distinct CO2 species reported thus far in the literature, highlighting controversial assignments regarding the existence of chemisorbed CO2 species still under debate. Models of carbamic acid, alkylammonium carbamate with different conformations and hydrogen bonding arrangements were ascertained using density functional theory (DFT) methods, mainly through the comparison of the experimental 13C and 15N NMR chemical shifts with those obtained computationally. CO2 models with variable number of amines and silanol groups were also evaluated to explain the effect of amine aggregation in CO2 speciation under confinement. In addition, other less commonly studied chemisorbed CO2 species (e.g., alkylammonium bicarbonate, ditethered carbamic acid and silylpropylcarbamate), largely due to the difficulty in obtaining spectroscopic identification for those, have also been investigated in great detail. The existence of either neutral or charged (alkylammonium siloxides) amine groups, prior to CO2 adsorption, is also addressed. This work extends the molecular-level understanding of chemisorbed CO2 species in amine-oxide hybrid surfaces showing the benefit of integrating spectroscopy and theoretical approaches.
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Affiliation(s)
- Rui Afonso
- CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| | - Mariana Sardo
- CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| | - Luís Mafra
- CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
| | - José R B Gomes
- CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro, Campus Universitário de Santiago , 3810-193 Aveiro , Portugal
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14
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Forse AC, Milner PJ, Lee JH, Redfearn HN, Oktawiec J, Siegelman RL, Martell JD, Dinakar B, Porter-Zasada LB, Gonzalez MI, Neaton JB, Long JR, Reimer JA. Elucidating CO 2 Chemisorption in Diamine-Appended Metal-Organic Frameworks. J Am Chem Soc 2018; 140:18016-18031. [PMID: 30501180 DOI: 10.1021/jacs.8b10203] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The widespread deployment of carbon capture and sequestration as a climate change mitigation strategy could be facilitated by the development of more energy-efficient adsorbents. Diamine-appended metal-organic frameworks of the type diamine-M2(dobpdc) (M = Mg, Mn, Fe, Co, Ni, Zn; dobpdc4- = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate) have shown promise for carbon-capture applications, although questions remain regarding the molecular mechanisms of CO2 uptake in these materials. Here we leverage the crystallinity and tunability of this class of frameworks to perform a comprehensive study of CO2 chemisorption. Using multinuclear nuclear magnetic resonance (NMR) spectroscopy experiments and van-der-Waals-corrected density functional theory (DFT) calculations for 13 diamine-M2(dobpdc) variants, we demonstrate that the canonical CO2 chemisorption products, ammonium carbamate chains and carbamic acid pairs, can be readily distinguished and that ammonium carbamate chain formation dominates for diamine-Mg2(dobpdc) materials. In addition, we elucidate a new chemisorption mechanism in the material dmpn-Mg2(dobpdc) (dmpn = 2,2-dimethyl-1,3-diaminopropane), which involves the formation of a 1:1 mixture of ammonium carbamate and carbamic acid and accounts for the unusual adsorption properties of this material. Finally, we show that the presence of water plays an important role in directing the mechanisms for CO2 uptake in diamine-M2(dobpdc) materials. Overall, our combined NMR and DFT approach enables a thorough depiction and understanding of CO2 adsorption within diamine-M2(dobpdc) compounds, which may aid similar studies in other amine-functionalized adsorbents in the future.
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Affiliation(s)
| | - Phillip J Milner
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Jung-Hoon Lee
- Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | | | | | - Rebecca L Siegelman
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | | | - Bhavish Dinakar
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | | | | | - Jeffrey B Neaton
- Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Kavli Energy Nanosciences Institute at Berkeley , Berkeley , California 94720 , United States
| | - Jeffrey R Long
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Jeffrey A Reimer
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
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15
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Lee JJ, Yoo CJ, Chen CH, Hayes SE, Sievers C, Jones CW. Silica-Supported Sterically Hindered Amines for CO 2 Capture. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12279-12292. [PMID: 30244578 DOI: 10.1021/acs.langmuir.8b02472] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Most studies exploring the capture of CO2 on solid-supported amines have focused on unhindered amines or alkylimine polymers. It has been observed in extensive solution studies that another class of amines, namely sterically hindered amines, can exhibit enhanced CO2 capacity when compared to their unhindered counterparts. In contrast to solution studies, there has been limited research conducted on sterically hindered amines on solid supports. In this work, one hindered primary amine and two hindered secondary amines are grafted onto mesoporous silica at similar amine coverages, and their adsorption performances are investigated through fixed bed breakthrough experiments and thermogravimetric analysis. Furthermore, chemisorbed CO2 species formed on the sorbents under dry and humid conditions are elucidated using in situ Fourier-transform infrared spectroscopy. Ammonium bicarbonate formation and enhancement of CO2 adsorption capacity is observed for all supported hindered amines under humid conditions. Our experiments in this study also suggest that chemisorbed CO2 species formed on supported hindered amines are weakly bound, which may lead to reduced energy costs associated with regeneration if such materials were deployed in a practical separation process. However, overall CO2 uptake capacities of the solid supported hindered amines are modest compared to their solution counterparts. The oxidative and thermal stabilities of the supported hindered amine sorbents are also assessed to give insight into their operational lifetimes.
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Affiliation(s)
- Jason J Lee
- School of Chemical & Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive , Atlanta , Georgia 30332 , United States
| | - Chun-Jae Yoo
- School of Chemical & Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive , Atlanta , Georgia 30332 , United States
| | - Chia-Hsin Chen
- Department of Chemistry , Washington University , One Brookings Drive , Saint Louis , Missouri 63130 , United States
| | - Sophia E Hayes
- Department of Chemistry , Washington University , One Brookings Drive , Saint Louis , Missouri 63130 , United States
| | - Carsten Sievers
- School of Chemical & Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive , Atlanta , Georgia 30332 , United States
| | - Christopher W Jones
- School of Chemical & Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive , Atlanta , Georgia 30332 , United States
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16
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Chen CH, Shimon D, Lee JJ, Mentink-Vigier F, Hung I, Sievers C, Jones CW, Hayes SE. The "Missing" Bicarbonate in CO 2 Chemisorption Reactions on Solid Amine Sorbents. J Am Chem Soc 2018; 140:8648-8651. [PMID: 29947515 PMCID: PMC6069596 DOI: 10.1021/jacs.8b04520] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We have identified a hydrated bicarbonate formed by chemisorption of 13CO2 on both dimethylaminopropylsilane (DMAPS) and aminopropylsilane (APS) pendant molecules grafted on SBA-15 mesoporous silica. The most commonly used sequence in solid-state NMR, 13C CPMAS, failed to detect bicarbonate in these solid amine sorbent samples; here, we have employed a Bloch decay ("pulse-acquire") sequence (with 1H decoupling) to detect such species. The water that is present contributes to the dynamic motion of the bicarbonate product, thwarting CPMAS but enabling direct 13C detection by shortening the spin-lattice relaxation time. Since solid-state NMR plays a major role in characterizing chemisorption reactions, these new insights that allow for the routine detection of previously elusive bicarbonate species (which are also challenging to observe in IR spectroscopy) represent an important advance. We note that employing this straightforward NMR technique can reveal the presence of bicarbonate that has often otherwise been overlooked, as demonstrated in APS, that has been thought to only contain adsorbed CO2 as carbamate and carbamic acid species. As in other systems (e.g., proteins), dynamic species that sample multiple environments tend to broaden as their motion is frozen out. Here, we show two distinct bicarbonate species upon freezing, and coupling to different protons is shown through preliminary 13C-1H HETCOR measurements. This work demonstrates that bicarbonates have likely been formed in the presence of water but have gone unobserved by NMR due to the nature of the experiments most routinely employed, a perspective that will transform the way the sorption community will view CO2 capture by amines.
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Affiliation(s)
- Chia-Hsin Chen
- Department of Chemistry , Washington University , 1 Brookings Drive , Saint Louis , Missouri 63130 , United States
| | - Daphna Shimon
- Department of Chemistry , Washington University , 1 Brookings Drive , Saint Louis , Missouri 63130 , United States
| | - Jason J Lee
- School of Chemical & Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive , Atlanta , Georgia 30332 , United States
| | - Frederic Mentink-Vigier
- National High Magnetic Field Laboratory , 1800 East Paul Dirac Drive , Tallahassee , Florida 32310 , United States
| | - Ivan Hung
- National High Magnetic Field Laboratory , 1800 East Paul Dirac Drive , Tallahassee , Florida 32310 , United States
| | - Carsten Sievers
- School of Chemical & Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive , Atlanta , Georgia 30332 , United States
| | - Christopher W Jones
- School of Chemical & Biomolecular Engineering , Georgia Institute of Technology , 311 Ferst Drive , Atlanta , Georgia 30332 , United States
| | - Sophia E Hayes
- Department of Chemistry , Washington University , 1 Brookings Drive , Saint Louis , Missouri 63130 , United States
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17
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Čendak T, Sequeira L, Sardo M, Valente A, Pinto ML, Mafra L. Detecting Proton Transfer in CO 2 Species Chemisorbed on Amine-Modified Mesoporous Silicas by Using 13 C NMR Chemical Shift Anisotropy and Smart Control of Amine Surface Density. Chemistry 2018; 24:10136-10145. [PMID: 29663545 DOI: 10.1002/chem.201800930] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Indexed: 01/24/2023]
Abstract
The wealth of site-selective structural information on CO2 speciation, obtained by spectroscopic techniques, is often hampered by the lack of easy-to-control synthetic routes. Herein, an alternative experimental protocol that relies on the high sensitivity of 13 C chemical shift anisotropy (CSA) tensors to proton transfer, is presented to unambiguously distinguish between ionic/charged and neutral CO2 species, formed upon adsorption of 13 CO2 in amine-modified porous materials. Control of the surface amine spacing was achieved through the use of amine protecting groups during functionalisation prior to CO2 adsorption. This approach enabled the formation of either "isolated" or "paired" carbamate/carbamic acid species, providing a first experimental NMR proof towards the identification of both aggregation states. Computer modelling of surface CO2 -amine adducts assisted the solid-state NMR assignments and validated various hydrogen-bond arrangements occurring upon formation of isolated/aggregated carbamic acid and alkylammonium carbamate ion species. This work extends the understanding of chemisorbed CO2 structures formed at pore surfaces and reveals structural insight about the protonation source responsible for the proton-transfer mechanism in such aggregates.
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Affiliation(s)
- Tomaž Čendak
- CICECO-Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.,National Institute of Chemistry, Hajdrihova 19, 1001, Ljubljana, Slovenia
| | - Lisa Sequeira
- CICECO-Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Mariana Sardo
- CICECO-Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Anabela Valente
- CICECO-Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Moisés L Pinto
- CERENA-Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais n° 1, 1049-001, Lisbon, Portugal
| | - Luís Mafra
- CICECO-Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
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18
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Shimon D, Chen CH, Lee JJ, Didas SA, Sievers C, Jones CW, Hayes SE. 15N Solid State NMR Spectroscopic Study of Surface Amine Groups for Carbon Capture: 3-Aminopropylsilyl Grafted to SBA-15 Mesoporous Silica. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:1488-1495. [PMID: 29257887 DOI: 10.1021/acs.est.7b04555] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Materials composed of high-porosity solid supports, such as SBA-15, containing amine-bearing moieties inside the pores, such as 3-aminopropylsilane (APS), are envisioned for carbon dioxide capture; solid-state 15N NMR can be highly informative for studying chemisorption reactions. Two 15N-enriched samples with different APS loadings were studied to probe the identity of the pendant molecules and structure of the chemisorbed CO2 species. 15N cross-polarization magic-angle spinning NMR provides unique information about the amines, whether they are rigid or dynamic, by measuring contact time curves and rotating frame, T1ρ(15N), relaxation. Both carbamate and carbamic acid are formed; carbamic acid is shown to be less stable than carbamate. After desorption, a steady state for the chemisorbed reaction product is reached, leaving behind carbamate. 15N NMR monitors the evolution of the species over time. During desorption, APS is regenerated, but the ammonium propylsilane intensity does not change, leading us to conclude that carbamic acid desorbs, while carbamate (to which ammonium propylsilane is ion paired) persists. A secondary ditehtered amine present does not react with CO2, and we posit this may be due to its rigidity. These findings demonstrate the versatility of solid-state NMR to provide information about these complex CO2 reactions with solid amine sorbents.
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Affiliation(s)
- Daphna Shimon
- Department of Chemistry, Washington University in St. Louis , St. Louis, Missouri 63130, United States
| | - Chia-Hsin Chen
- Department of Chemistry, Washington University in St. Louis , St. Louis, Missouri 63130, United States
| | - Jason J Lee
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Stephanie A Didas
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Carsten Sievers
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Christopher W Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Sophia E Hayes
- Department of Chemistry, Washington University in St. Louis , St. Louis, Missouri 63130, United States
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19
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Gatti G, Costenaro D, Vittoni C, Paul G, Crocellà V, Mangano E, Brandani S, Bordiga S, Cossi M, Marchese L, Bisio C. CO 2 adsorption on different organo-modified SBA-15 silicas: a multidisciplinary study on the effects of basic surface groups. Phys Chem Chem Phys 2018; 19:14114-14128. [PMID: 28524206 DOI: 10.1039/c6cp08048k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hybrid organic-inorganic SBA-15 silicas functionalized with increasing amounts of amino groups were studied in this work aiming to evaluate the effects of their physico-chemical properties on CO2 capture ability. Three different amino-silane species were used: 3-aminopropyltriethoxysilane (APTS), 3-(2-aminoethyl)aminopropyltrimethoxysilane (EAPTS) and 3-[2-(2-aminoethyl)aminoethyl] aminopropyltrimethoxysilane (PAPTS). More specifically, samples were prepared by using two methods, following a post-synthesis grafting procedure and a one-pot preparation method. Experimental and computational techniques were used to study the structural and textural properties of the obtained samples and their surface species in relation to the adopted preparation method. For the most reactive samples, additional hints on the interactions of organosilane species with the silica surface were obtained by a combination of IR and SS-NMR spectroscopy, with particular emphasis on the effects of the silane chain length on the mobility of the organic species. Advanced complementary solid-state NMR techniques provided deeper information on the interactions of organosilane species with the silica surface. Finally, the amount of CO2 adsorbed was estimated by comparing the classical microcalorimetric analysis method with a new type of screening test, the Zero Length Column analysis, which is able to evaluate small amounts of samples in a very short time and the adsorption properties of the adsorbents. The reactivity of the amino-modified silica samples is deeply influenced by both the preparation route and by the type of organosilane used for the functionalization of the materials. In particular, samples prepared by the post-synthesis grafting procedure and containing higher amount of amino groups in the chain are more reactive, following the order PAPTS > EAPTS > APTS.
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Affiliation(s)
- G Gatti
- Dipartimento di Scienze e Innovazione Tecnologica and "Centro interdisciplinare Nano-SiSTeMI", Università del Piemonte Orientale, via T. Michel 11, 15121 Alessandria, Italy.
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20
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Liu F, Kuang Y, Wang S, Chen S, Fu W. Preparation and characterization of molecularly imprinted solid amine adsorbent for CO2 adsorption. NEW J CHEM 2018. [DOI: 10.1039/c8nj00686e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A molecularly imprinted solid amine adsorbent was successfully synthesized and exhibited excellent CO2 adsorption performance under simulated flue gas.
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Affiliation(s)
- Fenglei Liu
- PCFM Lab
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Yizhu Kuang
- PCFM Lab
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Shuoyu Wang
- PCFM Lab
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Shuixia Chen
- PCFM Lab
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Wenhao Fu
- PCFM Lab
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
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21
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22
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Milner PJ, Siegelman RL, Forse AC, Gonzalez MI, Runčevski T, Martell JD, Reimer JA, Long JR. A Diaminopropane-Appended Metal-Organic Framework Enabling Efficient CO 2 Capture from Coal Flue Gas via a Mixed Adsorption Mechanism. J Am Chem Soc 2017; 139:13541-13553. [PMID: 28906108 PMCID: PMC8221660 DOI: 10.1021/jacs.7b07612] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A new diamine-functionalized metal-organic framework comprised of 2,2-dimethyl-1,3-diaminopropane (dmpn) appended to the Mg2+ sites lining the channels of Mg2(dobpdc) (dobpdc4- = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate) is characterized for the removal of CO2 from the flue gas emissions of coal-fired power plants. Unique to members of this promising class of adsorbents, dmpn-Mg2(dobpdc) displays facile step-shaped adsorption of CO2 from coal flue gas at 40 °C and near complete CO2 desorption upon heating to 100 °C, enabling a high CO2 working capacity (2.42 mmol/g, 9.1 wt %) with a modest 60 °C temperature swing. Evaluation of the thermodynamic parameters of adsorption for dmpn-Mg2(dobpdc) suggests that the narrow temperature swing of its CO2 adsorption steps is due to the high magnitude of its differential enthalpy of adsorption (Δhads = -73 ± 1 kJ/mol), with a larger than expected entropic penalty for CO2 adsorption (Δsads = -204 ± 4 J/mol·K) positioning the step in the optimal range for carbon capture from coal flue gas. In addition, thermogravimetric analysis and breakthrough experiments indicate that, in contrast to many adsorbents, dmpn-Mg2(dobpdc) captures CO2 effectively in the presence of water and can be subjected to 1000 humid adsorption/desorption cycles with minimal degradation. Solid-state 13C NMR spectra and single-crystal X-ray diffraction structures of the Zn analogue reveal that this material adsorbs CO2 via formation of both ammonium carbamates and carbamic acid pairs, the latter of which are crystallographically verified for the first time in a porous material. Taken together, these properties render dmpn-Mg2(dobpdc) one of the most promising adsorbents for carbon capture applications.
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Affiliation(s)
- Phillip J. Milner
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Rebecca L. Siegelman
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Alexander C. Forse
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Berkeley Energy and Climate Institute, University of California, Berkeley, California 94720, United States
| | - Miguel I. Gonzalez
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Tomče Runčevski
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jeffrey D. Martell
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jeffrey A. Reimer
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Jeffrey R. Long
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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23
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Chen CH, Shimon D, Lee JJ, Didas SA, Mehta AK, Sievers C, Jones CW, Hayes SE. Spectroscopic Characterization of Adsorbed 13CO 2 on 3-Aminopropylsilyl-Modified SBA15 Mesoporous Silica. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:6553-6559. [PMID: 28460168 DOI: 10.1021/acs.est.6b06605] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Multiple chemisorption products are found from the interaction of CO2 with the solid-amine sorbent, 3-aminopropyl silane (APS), bound to mesoporous silica (SBA15) using solid-state NMR and FTIR spectroscopy. We employed a combination of both 15N{13C} rotational-echo double-resonance (REDOR) NMR and 13C{15N} REDOR to determine the chemical identity of these products. 15N{13C} REDOR measurements are consistent with a single 13C-15N pair and distance of 1.45 Å. In contrast, both 13C{15N} REDOR and 13C CPMAS are consistent with multiple 13C products. 13C CPMAS shows two neighboring resonances, whose chemical shifts are consistent with carbamate (at 165 ppm) and carbamic acid. The 13C{15N} REDOR experiments resonant at 165 ppm show an incomplete buildup of the REDOR data to ∼90% of the expected maximum. We conclude this 10% missing intensity corresponds to a 13C NMR species that resonates at the identical chemical shift but that is not in dipolar contact with 15N. These data are consistent with the presence of bicarbonate, HCO3-, since it is commonly observed at ∼165 ppm and lacks 15N for dipolar coupling.
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Affiliation(s)
- Chia-Hsin Chen
- Department of Chemistry, Washington University in Saint Louis , One Brookings Drive, Saint Louis, Missouri 63130, United States
| | - Daphna Shimon
- Department of Chemistry, Washington University in Saint Louis , One Brookings Drive, Saint Louis, Missouri 63130, United States
| | - Jason J Lee
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Stephanie A Didas
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Anil K Mehta
- Solid-State NMR Center, Department of Chemistry, Emory University , Atlanta, Georgia 30322, United States
| | - Carsten Sievers
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Christopher W Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Sophia E Hayes
- Department of Chemistry, Washington University in Saint Louis , One Brookings Drive, Saint Louis, Missouri 63130, United States
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24
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Inagaki F, Matsumoto C, Iwata T, Mukai C. CO 2-Selective Absorbents in Air: Reverse Lipid Bilayer Structure Forming Neutral Carbamic Acid in Water without Hydration. J Am Chem Soc 2017; 139:4639-4642. [PMID: 28306250 DOI: 10.1021/jacs.7b01049] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Emission gas and air contain not only CO2 but also plentiful moisture, making it difficult to achieve selective CO2 absorption without hydration. To generate absorbed CO2 (wet CO2) under heating, the need for external energy to release the absorbed water has been among the most serious problems in the fields of carbon dioxide capture and storage (CCS) and direct air capture (DAC). We found that the introduction of the hydrophobic phenyl group into alkylamines of CO2 absorbents improved the absorption selectivity between CO2 and water. Furthermore, ortho-, meta-, and para-xylylenediamines (OXDA, MXDA, PXDA, respectively) absorbed only CO2 in air without any hydration. Notably, MXDA·CO2 was formed as an anhydrous carbamic acid even in water, presumably because it was covered with hydrophobic phenyl groups, which induces a reverse lipid bilayer structure. Dry CO2 was obtained from heating MXDA·CO2 at 103-120 °C, which was revealed to involve chemically the Grignard reaction to form the resulting carboxylic acids in high yields.
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Affiliation(s)
- Fuyuhiko Inagaki
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
| | - Chiaki Matsumoto
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
| | - Takashi Iwata
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
| | - Chisato Mukai
- Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University , Kakuma-machi, Kanazawa 920-1192, Japan
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25
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Jo H, Lee WR, Kim NW, Jung H, Lim KS, Kim JE, Kang DW, Lee H, Hiremath V, Seo JG, Jin H, Moon D, Han SS, Hong CS. Fine-Tuning of the Carbon Dioxide Capture Capability of Diamine-Grafted Metal-Organic Framework Adsorbents Through Amine Functionalization. CHEMSUSCHEM 2017; 10:541-550. [PMID: 28004886 DOI: 10.1002/cssc.201601203] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/25/2016] [Indexed: 06/06/2023]
Abstract
A combined sonication and microwave irradiation procedure provides the most effective functionalization of ethylenediamine (en) and branched primary diamines of 1-methylethylenediamine (men) and 1,1-dimethylethylenediamine (den) onto the open metal sites of Mg2 (dobpdc) (1). The CO2 capacities of the advanced adsorbents 1-en and 1-men under simulated flue gas conditions are 19 wt % and 17.4 wt %, respectively, which are the highest values reported among amine-functionalized metal-organic frameworks (MOFs) to date. Moreover, 1-den exhibits both a significant working capacity (12.2 wt %) and superb CO2 uptake (11 wt %) at 3 % CO2 . Additionally, this framework showcases the superior recyclability; ultrahigh stability after exposure to O2 , moisture, and SO2 ; and exceptional CO2 adsorption capacity under humid conditions, which are unprecedented among MOFs. We also elucidate that the performance of CO2 adsorption can be controlled by the structure of the diamine ligands grafted such as the number of amine end groups or the presence of side groups, which provides the first systematic and comprehensive demonstration of fine-tuning of CO2 uptake capability using different amines.
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Affiliation(s)
- Hyuna Jo
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Woo Ram Lee
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Nam Woo Kim
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Hyun Jung
- Center for Computational Science, Korea Institute of Science and Technology (KIST), Seoul, 136-791, Republic of Korea
| | - Kwang Soo Lim
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Jeong Eun Kim
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Dong Won Kang
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Hanyeong Lee
- Department of Energy Science and Technology, Myongji University, Myongji-ro 116, Cheoin-gu, Yongin, Gyeonggi-do, 449-728, Republic of Korea
| | - Vishwanath Hiremath
- Department of Energy Science and Technology, Myongji University, Myongji-ro 116, Cheoin-gu, Yongin, Gyeonggi-do, 449-728, Republic of Korea
| | - Jeong Gil Seo
- Department of Energy Science and Technology, Myongji University, Myongji-ro 116, Cheoin-gu, Yongin, Gyeonggi-do, 449-728, Republic of Korea
| | - Hailian Jin
- Research & Development Team, Korea Carbon Capture & Sequestration R&D Center, Daejeon, 305-343, Republic of Korea
| | - Dohyun Moon
- Beamline Division, Pohang Accelerator Laboratory, Pohang, Kyungbuk, 790-784, Republic of Korea
| | - Sang Soo Han
- Center for Computational Science, Korea Institute of Science and Technology (KIST), Seoul, 136-791, Republic of Korea
| | - Chang Seop Hong
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
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26
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Foo GS, Lee JJ, Chen CH, Hayes SE, Sievers C, Jones CW. Elucidation of Surface Species through in Situ FTIR Spectroscopy of Carbon Dioxide Adsorption on Amine-Grafted SBA-15. CHEMSUSCHEM 2017; 10:266-276. [PMID: 27573047 DOI: 10.1002/cssc.201600809] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Indexed: 05/19/2023]
Abstract
The nature of the surface species formed through the adsorption of CO2 on amine-grafted mesoporous silica is investigated through in situ FTIR spectroscopy with the aid of 15 N dynamic nuclear polarization (DNP) and 13 C NMR spectroscopy. Primary, secondary, and tertiary amines are functionalized onto a mesoporous SBA-15 silica. Both isotopically labeled 13 CO2 and natural-abundance CO2 are used for accurate FTIR peak assignments, which are compared with assignments reported previously. The results support the formation of monomeric and dimeric carbamic acid species on secondary amines that are stabilized differently to the monocarbamic acid species on primary amines. Furthermore, the results from isotopically labelled 13 CO2 experiments suggest the existence of two carbamate species on primary amines, whereas only one species is observed predominantly on secondary amines. The analysis of the IR peak intensities and frequencies indicate that the second carbamate species on primary amines is probably more asymmetric in nature and forms in a relatively smaller amount. Only the formation of bicarbonate ions at a low concentration is observed on tertiary amines; therefore, physisorbed water on the surface plays a role in the hydrolysis of CO2 even if water is not added intentionally and dry gases are used. This suggests that a small amount of bicarbonate ions could be expected to form on primary and secondary amines, which are more hydrophilic than tertiary amines, and these low concentration species are difficult to observe on such samples.
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Affiliation(s)
- Guo Shiou Foo
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia, 30332, United States
| | - Jason J Lee
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia, 30332, United States
| | - Chia-Hsin Chen
- Department of Chemistry, Washington University, One Brookings Drive, Saint Louis, Missouri, 63130, United States
| | - Sophia E Hayes
- Department of Chemistry, Washington University, One Brookings Drive, Saint Louis, Missouri, 63130, United States
| | - Carsten Sievers
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia, 30332, United States
| | - Christopher W Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia, 30332, United States
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27
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Kim KC, Moschetta EG, Jones CW, Jang SS. Molecular Dynamics Simulations of Aldol Condensation Catalyzed by Alkylamine-Functionalized Crystalline Silica Surfaces. J Am Chem Soc 2016; 138:7664-72. [DOI: 10.1021/jacs.6b03309] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ki Chul Kim
- Computational NanoBio
Technology Laboratory, School of Materials
Science and Engineering, ‡School of Chemical & Biomolecular Engineering, §Institute for Electronics
and Nanotechnology, and ∥Parker H. Petit Institute for Bioengineering and
Bioscience, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332-0245, United States
| | - Eric G. Moschetta
- Computational NanoBio
Technology Laboratory, School of Materials
Science and Engineering, ‡School of Chemical & Biomolecular Engineering, §Institute for Electronics
and Nanotechnology, and ∥Parker H. Petit Institute for Bioengineering and
Bioscience, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332-0245, United States
| | - Christopher W. Jones
- Computational NanoBio
Technology Laboratory, School of Materials
Science and Engineering, ‡School of Chemical & Biomolecular Engineering, §Institute for Electronics
and Nanotechnology, and ∥Parker H. Petit Institute for Bioengineering and
Bioscience, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332-0245, United States
| | - Seung Soon Jang
- Computational NanoBio
Technology Laboratory, School of Materials
Science and Engineering, ‡School of Chemical & Biomolecular Engineering, §Institute for Electronics
and Nanotechnology, and ∥Parker H. Petit Institute for Bioengineering and
Bioscience, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332-0245, United States
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