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Dziejarski B, Hernández-Barreto DF, Moreno-Piraján JC, Giraldo L, Serafin J, Knutsson P, Andersson K, Krzyżyńska R. Upgrading recovered carbon black (rCB) from industrial-scale end-of-life tires (ELTs) pyrolysis to activated carbons: Material characterization and CO 2 capture abilities. ENVIRONMENTAL RESEARCH 2024; 247:118169. [PMID: 38244973 DOI: 10.1016/j.envres.2024.118169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/14/2023] [Accepted: 01/09/2024] [Indexed: 01/22/2024]
Abstract
The current study presents for the first time how recovered carbon black (rCB) obtained directly from the industrial-scale end-of-life tires (ELTs) pyrolysis sector is applied as a precursor for activated carbons (ACs) with application in CO2 capture. The rCB shows better physical characteristics, including density and carbon structure, as well as chemical properties, such as a consistent composition and low impurity concentration, in comparison to the pyrolytic char. Potassium hydroxide and air in combination with heat treatment (500-900 °C) were applied as agents for the conventional chemical and physical activation of the material. The ACs were tested for their potential to capture CO2. Ultimate and proximate analysis, Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), Raman spectroscopy, thermogravimetric analysis (TGA), and N2/CO2 gas adsorption/desorption isotherms were used as material characterization methods. Analysis revealed that KOH-activated carbon at 900 °C (AC-900K) exhibited the highest surface area and a pore volume that increased 6 and 3 times compared to pristine rCB. Moreover, the AC-900K possessed a well-developed dual porosity, corresponding to the 22% and 78% of micropore and mesopore volume, respectively. At 0 °C and 25 °C, AC-900K also showed a CO2 adsorption capacity equal to 30.90 cm3/g and 20.53 cm3/g at 1 bar, along with stable cyclic regeneration after 10 cycles. The high dependence of CO2 uptake on the micropore volume at width below 0.7-0.8 nm was identified. The selectivity towards CO2 in relation to N2 reached high values of 350.91 (CO2/N2 binary mixture) and 59.70 (15% CO2/85% N2).
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Affiliation(s)
- Bartosz Dziejarski
- Faculty of Environmental Engineering, Wroclaw University of Science and Technology, 50-370, Wroclaw, Poland; Department of Space, Earth and Environment, Division of Energy Technology, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden; Department of Chemistry and Chemical Engineering, Division of Energy and Materials, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
| | - Diego Felipe Hernández-Barreto
- Departamento de Química, Facultad de Ciencias, Grupo de Investigación en Sólidos Porosos y Calorimetría, Universidad de Los Andes, Cra. 1a No. 18A-10, Bogotá D.C. 11711, Colombia
| | - Juan Carlos Moreno-Piraján
- Departamento de Química, Facultad de Ciencias, Grupo de Investigación en Sólidos Porosos y Calorimetría, Universidad de Los Andes, Cra. 1a No. 18A-10, Bogotá D.C. 11711, Colombia.
| | - Liliana Giraldo
- Departamento de Química, Grupo de Calorimetría, Universidad Nacional de Colombia, Sede Bogotá, Cra. 45, Bogotá D.C. 11711, Colombia
| | - Jarosław Serafin
- Department of Inorganic and Organic Chemistry, University of Barcelona, Martí I Franquès, 1-11, 08028, Barcelona, Spain
| | - Pavleta Knutsson
- Department of Chemistry and Chemical Engineering, Division of Energy and Materials, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Klas Andersson
- Department of Space, Earth and Environment, Division of Energy Technology, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden; Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA
| | - Renata Krzyżyńska
- Faculty of Environmental Engineering, Wroclaw University of Science and Technology, 50-370, Wroclaw, Poland
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2
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Suzuki Y, Ishida M, Hata K, Ohba T. Sequential N 2 Adsorption by the Nanopore Entrance Filling Scheme in Nanopores of Carbon Nanotubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15431-15440. [PMID: 37862693 DOI: 10.1021/acs.langmuir.3c01415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
The adsorption dynamics and mechanism of nitrogen molecules in 1-7 nm carbon nanotubes (CNTs) at 77 K were investigated by experiments and molecular dynamics simulations. The adsorbed nitrogen amount rapidly increased in 7 nm CNTs, while it gradually increased in 1 and 3 nm CNTs. The gradual increase in 3 nm CNTs was unexpected because of the presence of sufficient adsorption sites and the weak adsorption potential of nitrogen. The molecular dynamics simulations indicated that molecules were condensed in the entrance of nanopores after monolayer adsorption in 3 nm CNTs and monolayer and bilayer adsorption in 5 nm CNTs, called nanopore entrance filling. The proposed adsorption mechanism of nitrogen molecules in CNT nanopores is as follows: first, layer-by-layer adsorption occurs on monolayer sites, followed by preferential adsorption at the nanopore entrance. Consequently, preadsorbed molecules form a fluidic pore neck similar to an ink-bottle pore. Then, newly adsorbed molecules are condensed on the fluidic pore neck, and condensed molecules in the nanopore entrance finally move into the inner part of the nanopore. The proposed sequential adsorption mechanism via nanopore entrance filling without pore blocking starkly differs from micropore filling in micropores and layer-by-layer adsorption associated with capillary condensation in mesopores.
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Affiliation(s)
- Yuka Suzuki
- Graduate school of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Masaya Ishida
- Graduate school of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Kenji Hata
- AIST Tsukuba, Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Tomonori Ohba
- Graduate school of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
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Mandal SS, Singh SK, Khan S. Role of site-site interaction on the phase equilibria of multiple-site associating fluids in a functionalized slit pore. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 35:475402. [PMID: 37549673 DOI: 10.1088/1361-648x/acede1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/07/2023] [Indexed: 08/09/2023]
Abstract
Vapor-liquid phase equilibria for multiple sites associating fluids with different associating strengths are investigated in a slit pore using grand-canonical transition matrix Monte Carlo method. The increase of critical temperature from two-site to four-site associating fluids at constant site strength is quite significant as compared to that of the one-site to two-site associating fluids, which is more pronounced at higher associating strength (ϵ* = 6). Monomer fraction and cluster size distribution are used to investigate the association of fluid particles in coexistence phases. The monomer fraction for both phases decreases with increased associating sites on the fluid particles due to more site-site interaction with neighboring fluid particles and forming a larger cluster. Therefore, the number of associating sites and their distribution play a vital role in the association of fluid particles. Moreover, the saturation chemical potential changes with the arrangement of the sites. For two-site associating fluids, we observe early vapor-liquid transition when the sites are oppositely placed, and when the sites are placed at 90°, the vapor-liquid transition is observed at the higher chemical potential. Moreover, four-site associating fluids with a square arrangement show early vapor-liquid phase transition, mainly because these arrangements of sites effectively interact with surface sites and the molecules in the next layer.
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Affiliation(s)
- Sashanka Sekhar Mandal
- Department of Chemical & Biochemical Engineering, Indian Institute of Technology Patna, Patna 801103, India
| | - Sudhir Kumar Singh
- Department of Chemical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Sandip Khan
- Department of Chemical & Biochemical Engineering, Indian Institute of Technology Patna, Patna 801103, India
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Li Z, Turner J, Snurr RQ. Computational investigation of hysteresis and phase equilibria of n-alkanes in a metal-organic framework with both micropores and mesopores. Commun Chem 2023; 6:90. [PMID: 37156883 PMCID: PMC10167368 DOI: 10.1038/s42004-023-00889-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/19/2023] [Indexed: 05/10/2023] Open
Abstract
Adsorption hysteresis is a phenomenon related to phase transitions that can impact applications such as gas storage and separations in porous materials. Computational approaches can greatly facilitate the understanding of phase transitions and phase equilibria in porous materials. In this work, adsorption isotherms for methane, ethane, propane, and n-hexane were calculated from atomistic grand canonical Monte Carlo (GCMC) simulations in a metal-organic framework having both micropores and mesopores to better understand hysteresis and phase equilibria between connected pores of different size and the external bulk fluid. At low temperatures, the calculated isotherms exhibit sharp steps accompanied by hysteresis. As a complementary simulation method, canonical (NVT) ensemble simulations with Widom test particle insertions are demonstrated to provide additional information about these systems. The NVT+Widom simulations provide the full van der Waals loop associated with the sharp steps and hysteresis, including the locations of the spinodal points and points within the metastable and unstable regions that are inaccessible to GCMC simulations. The simulations provide molecular-level insight into pore filling and equilibria between high- and low-density states within individual pores. The effect of framework flexibility on adsorption hysteresis is also investigated for methane in IRMOF-1.
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Affiliation(s)
- Zhao Li
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Jake Turner
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.
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5
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Zhang Y, Duan Y, Wu H, Xu H, Pei F, Shi L, Wang J, Yi Q. Ionic-Liquid-Assisted One-Step Construction of Mesoporous Metal-Organic Frameworks. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2491-2499. [PMID: 36745709 DOI: 10.1021/acs.langmuir.2c02412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The synthesis of ionic-mesoporous-metal-organic frameworks (ionic-meso-MOFs) has received considerable interest in the fields of macromolecular adsorption, acid-base catalysis, ionic conductivity, etc.; yet, their synthesis still presents significant difficulties. In this study, functionalized mesoporous MIL-101-ILs (Cr) was facilely constructed via an in situ self-assembly method by using aromatic-anion-functionalized ionic liquids (ILs) as competitive ligands. It has been demonstrated that the inclusion of an aromatic moiety into an IL improves the coordination ability and is advantageous for the anchoring of ILs on Cr3+ via amino-metal coordination. Thus, ionic-meso-MOFs with a specific surface area of 441.9-624.9 cm2/g and an average pore diameter of 5.5 to 8.4 nm were successfully synthesized. Because of the presence of open Lewis acidic metal sites on the MOFs and basic active sites on the ILs, the resulting ionic-meso-MOFs demonstrated both an acid-base cooperative effect and a mesoporous structure, indicating a high potential for acid-base catalysis. This in situ synthesis procedure for ionic mesoporous MOFs offers a simple method for developing and fabricating multifunctional mesoporous materials.
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Affiliation(s)
- Yuke Zhang
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, P.R. China
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Yuanyuan Duan
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, P.R. China
| | - Haonan Wu
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Hongxue Xu
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Feng Pei
- Hubei Yihua Chemical Technology R&D Co.ltd, Yichang 443208, P. R. China
| | - Lijuan Shi
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Jiancheng Wang
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, P.R. China
| | - Qun Yi
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
- Hubei Yihua Chemical Technology R&D Co.ltd, Yichang 443208, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030024, China
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6
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Borisover M. Time-independent desorption hysteresis in liquid phase sorption experiments: the concept and the models based on gate-sorption site coupling. ADSORPTION 2023. [DOI: 10.1007/s10450-023-00380-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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7
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Electrochemical behaviors of porous spherical spinel H1.6Mn1.6O4 with high Li+ adsorption capacity. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Frentzel-Beyme L, Kolodzeiski P, Weiß JB, Schneemann A, Henke S. Quantification of gas-accessible microporosity in metal-organic framework glasses. Nat Commun 2022; 13:7750. [DOI: 10.1038/s41467-022-35372-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
Abstract
AbstractMetal-organic framework (MOF) glasses are a new class of glass materials with immense potential for applications ranging from gas separation to optics and solid electrolytes. Due to the inherent difficulty to determine the atomistic structure of amorphous glasses, the intrinsic structural porosity of MOF glasses is only poorly understood. Here, we investigate the porosity features (pore size and pore limiting diameter) of a series of prototypical MOF glass formers from the family of zeolitic imidazolate frameworks (ZIFs) and their corresponding glasses. CO2 sorption at 195 K allows quantifying the microporosity of these materials in their crystalline and glassy states, also providing excess to the micropore volume and the apparent density of the ZIF glasses. Additional hydrocarbon sorption data together with X-ray total scattering experiments prove that the porosity features of the ZIF glasses depend on the types of organic linkers. This allows formulating design principles for a targeted tuning of the intrinsic microporosity of MOF glasses. These principles are counterintuitive and contrary to those established for crystalline MOFs but show similarities to strategies previously developed for porous polymers.
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9
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Liu X, Sim AHH, Fan C. Low temperature adsorption of CO2 in carbonaceous wedge pores: a Monte Carlo simulation study. ADSORPTION 2022. [DOI: 10.1007/s10450-022-00363-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
AbstractA systematic study of carbon dioxide in wedge pores under subcritical conditions were conducted with Grand Canonical Monte Carlo simulation. The effects of various factors: temperature, pore geometry (i.e., pore width, length, tilt angle and corrugation), on the formation of stepwise isotherms, were particularly investigated. The occurrence of this step-wise adsorption behaviour is correlated to the alternate packing between the commensurate and incommensurate along the pore axis direction. The steps faded with temperature, due to the adsorbates are less structured and gradually receded mainly from the wide end where the weakest potential exerted to the fluids. The number of steps on desorption branch depends on the number of junctions and domains formed. The particles accumulating at the narrow end in open wedge pore play a role analogy to the closed end. Moreover, having corrugation on the interior solid surface also results different mechanisms illustrated in the stepwise behaviour due to the change in the actual pore size distribution and the interference to the force field inside the pore.
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10
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Alloush RM, Sharma KV, Piri M. Capillary Condensation and Evaporation of n-Butane and iso-Butane in Nanoporous Media: Experimental Study of the Effects of Pore Size and Temperature Using an Automated Gravimetric Apparatus. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Liu X, Sim AHH, Fan C. The effects of potential model of CO 2 on its bulk phase properties and adsorption on surfaces and in pores. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2086276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xiu Liu
- Discipline of Chemical Engineering, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Bentley, Australia
| | - Allan Hua Heng Sim
- Discipline of Chemical Engineering, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Bentley, Australia
| | - Chunyan Fan
- Discipline of Chemical Engineering, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Bentley, Australia
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12
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Kikkinides ES, Gkogkos G, Monson PA, Valiullin R. Connecting dynamic pore filling mechanisms with equilibrium and out of equilibrium configurations of fluids in nanopores. J Chem Phys 2022; 156:134702. [PMID: 35395874 DOI: 10.1063/5.0087249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the present study, using dynamic mean field theory complemented by grand canonical molecular dynamics simulations, we investigate the extent to which the density distributions encountered during the dynamics of capillary condensation are related to those distributions at equilibrium or metastable equilibrium in a system at fixed average density (canonical ensemble). We find that the states encountered can be categorized as out of equilibrium or quasi-equilibrium based on the magnitude of the driving force for mass transfer. More specifically, in open-ended slit pores, pore filling via double bridging is an out of equilibrium process, induced by the dynamics of the system, while pore filling by single bridge formation is connected to a series of configurations that are equilibrium configurations in the canonical ensemble and that cannot be observed experimentally by a standard adsorption process, corresponding to the grand canonical ensemble. Likewise, in closed cap slits, the formation of a liquid bridge near the pore opening and its subsequent growth while the initially detached meniscus from the capped end remains immobilized are out of equilibrium processes that occur at large driving forces. On the other hand, at small driving forces, there is a continuous acceleration of the detached meniscus from the capped end, which is associated with complete reversibility in the limit of an infinitesimally small driving force.
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Affiliation(s)
- E S Kikkinides
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - G Gkogkos
- Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P A Monson
- Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003-9303, USA
| | - R Valiullin
- Faculty of Physics and Earth Sciences, Leipzig University, Leipzig, Germany
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13
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Machine-Learned Free Energy Surfaces for Capillary Condensation and Evaporation in Mesopores. ENTROPY 2022; 24:e24010097. [PMID: 35052123 PMCID: PMC8774451 DOI: 10.3390/e24010097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/29/2021] [Accepted: 01/05/2022] [Indexed: 12/04/2022]
Abstract
Using molecular simulations, we study the processes of capillary condensation and capillary evaporation in model mesopores. To determine the phase transition pathway, as well as the corresponding free energy profile, we carry out enhanced sampling molecular simulations using entropy as a reaction coordinate to map the onset of order during the condensation process and of disorder during the evaporation process. The structural analysis shows the role played by intermediate states, characterized by the onset of capillary liquid bridges and bubbles. We also analyze the dependence of the free energy barrier on the pore width. Furthermore, we propose a method to build a machine learning model for the prediction of the free energy surfaces underlying capillary phase transition processes in mesopores.
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Morishige K. Revisiting the Nature of Adsorption and Desorption Branches: Temperature Dependence of Adsorption Hysteresis in Ordered Mesoporous Silica. ACS OMEGA 2021; 6:15964-15974. [PMID: 34179641 PMCID: PMC8223431 DOI: 10.1021/acsomega.1c01643] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/28/2021] [Indexed: 06/13/2023]
Abstract
To gain a deeper understanding as to the nature of the adsorption hysteresis due to capillary condensation of nitrogen in ordered mesoporous silicas, we calculated the temperature dependences of the activated condensation, equilibrium transition, and activated desorption pressures for nitrogen in spherical and cylindrical silica pores with several different pore sizes on the basis of semimacroscopic continuum models. The results clearly indicate that the models capture the exact nature of capillary condensation and evaporation phenomena of a fluid in cagelike and cylindrical mesopores. The temperature dependences of the adsorption hysteresis of nitrogen measured confirm previous theoretical predictions for cylindrical pores: for the ordered mesoporous silicas with cylindrical mesopores at least greater than ∼7 nm in diameter, the capillary condensation takes place via a nucleation process followed by a growth process of a bridging meniscus at pressures higher than the equilibrium transition, while the capillary evaporation takes place via a receding meniscus from pore ends at the equilibrium. For SBA-15 and MCM-41 with smaller mesopore sizes, on the other hand, the capillary condensation takes place close to the equilibrium transition pressures, while the capillary evaporation takes place at pressures lower than the equilibrium, owing to single pore blocking due to corrugation of the cylindrical pores. We discuss the effect of curvature on surface tension in capillary condensation, as well as the relation between a change in the mechanisms of adsorption and desorption and the pore corrugation in the cylindrical pores.
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Affiliation(s)
- Kunimitsu Morishige
- Department of Chemistry, Okayama University of Science, 1-1 Rida-cho, Kita-ku, Okayama 700-0005, Japan
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15
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Bon V, Krause S, Senkovska I, Grimm N, Wallacher D, Többens DM, Kaskel S. Massive Pressure Amplification by Stimulated Contraction of Mesoporous Frameworks**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Volodymyr Bon
- Department of Inorganic Chemistry I Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
| | - Simon Krause
- Department of Inorganic Chemistry I Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
- Centre for Systems Chemistry Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Irena Senkovska
- Department of Inorganic Chemistry I Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
| | - Nico Grimm
- Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner-Platz 1 14109 Berlin Germany
| | - Dirk Wallacher
- Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner-Platz 1 14109 Berlin Germany
| | - Daniel M. Többens
- Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner-Platz 1 14109 Berlin Germany
| | - Stefan Kaskel
- Department of Inorganic Chemistry I Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
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16
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Bon V, Krause S, Senkovska I, Grimm N, Wallacher D, Többens DM, Kaskel S. Massive Pressure Amplification by Stimulated Contraction of Mesoporous Frameworks*. Angew Chem Int Ed Engl 2021; 60:11735-11739. [PMID: 33651917 PMCID: PMC8251781 DOI: 10.1002/anie.202100549] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/28/2021] [Indexed: 11/09/2022]
Abstract
Herein we demonstrate mesoporous frameworks interacting with carbon dioxide leading to stimulated structural contractions and massive out-of-equilibrium pressure amplification well beyond ambient pressure. Carbon dioxide, a non-toxic and non-flammable working medium, is promising for the development of pressure-amplifying frameworks for pneumatic technologies and safety systems. The strong interaction of the fluid with the framework even contracts DUT-46, a framework hitherto considered as non-flexible. Synchrotron-based in situ PXRD/adsorption experiments reveal the characteristic contraction pressure for DUT-49 pressure amplification in the range of 350-680 kPa. The stimulated framework contraction expels 1.1 to 2.4 mmol g-1 CO2 leading to autonomous pressure amplification in a pneumatic demonstrator system up to 428 kPa. According to system level estimations even higher theoretical pressure amplification may be achieved between 535 and 1011 kPa.
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Affiliation(s)
- Volodymyr Bon
- Department of Inorganic Chemistry ITechnische Universität DresdenBergstrasse 6601069DresdenGermany
| | - Simon Krause
- Department of Inorganic Chemistry ITechnische Universität DresdenBergstrasse 6601069DresdenGermany
- Centre for Systems ChemistryStratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Irena Senkovska
- Department of Inorganic Chemistry ITechnische Universität DresdenBergstrasse 6601069DresdenGermany
| | - Nico Grimm
- Helmholtz-Zentrum Berlin für Materialien und EnergieHahn-Meitner-Platz 114109BerlinGermany
| | - Dirk Wallacher
- Helmholtz-Zentrum Berlin für Materialien und EnergieHahn-Meitner-Platz 114109BerlinGermany
| | - Daniel M. Többens
- Helmholtz-Zentrum Berlin für Materialien und EnergieHahn-Meitner-Platz 114109BerlinGermany
| | - Stefan Kaskel
- Department of Inorganic Chemistry ITechnische Universität DresdenBergstrasse 6601069DresdenGermany
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17
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Abstract
Detailed analysis of textural properties, e.g., pore size and connectivity, of nanoporous materials is essential to identify correlations of these properties with the performance of gas storage, separation, and catalysis processes. The advances in developing nanoporous materials with uniform, tailor-made pore structures, including the introduction of hierarchical pore systems, offer huge potential for these applications. Within this context, major progress has been made in understanding the adsorption and phase behavior of confined fluids and consequently in physisorption characterization. This enables reliable pore size, volume, and network connectivity analysis using advanced, high-resolution experimental protocols coupled with advanced methods based on statistical mechanics, such as methods based on density functional theory and molecular simulation. If macro-pores are present, a combination of adsorption and mercury porosimetry can be useful. Hence, some important recent advances in understanding the mercury intrusion/extrusion mechanism are discussed. Additionally, some promising complementary techniques for characterization of porous materials immersed in a liquid phase are introduced.
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Affiliation(s)
- M Thommes
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91058, Germany;
| | - C Schlumberger
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91058, Germany;
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18
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Krause S, Evans JD, Bon V, Senkovska I, Coudert FX, Többens DM, Wallacher D, Grimm N, Kaskel S. The role of temperature and adsorbate on negative gas adsorption transitions of the mesoporous metal-organic framework DUT-49. Faraday Discuss 2021; 225:168-183. [PMID: 33118556 DOI: 10.1039/d0fd00013b] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Unusual adsorption phenomena, such as breathing and negative gas adsorption (NGA), are rare and challenge our thermodynamic understanding of adsorption in deformable porous solids. In particular, NGA appears to break the rules of thermodynamics in these materials by exhibiting a spontaneous release of gas accompanying an increase in pressure. This anomaly relies on long-lived metastable states. A fundamental understanding of this process is desperately required for the discovery of new materials with this exotic property. Interestingly, NGA was initially observed upon adsorption of methane at relatively low temperature, close to the respective standard boiling point of the adsorptive, and no NGA was observed at elevated temperatures. In this contribution, we present an extensive investigation of adsorption of an array of gases at various temperatures on DUT-49, a material which features an NGA transition. Experiments, featuring a wide range of gases and vapors at temperatures ranging from 21-308 K, were used to identify for each guest a critical temperature range in which NGA can be detected. The experimental results were complemented by molecular simulations that help to rationalize the absence of NGA at elevated temperatures, and the non-monotonic behavior present upon temperature decrease. Furthermore, this in-depth analysis highlights the crucial thermodynamic and kinetic conditions for NGA, which are unique to each guest and potentially other solids with similar effects. We expect this exploration to provide detailed guidelines for experimentally discovering NGA and related "rule breaking" phenomena in novel and already known materials, and provide the conditions required for the application of this effect, for example as pressure amplifying materials.
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Affiliation(s)
- Simon Krause
- Chair of Inorganic Chemistry, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany. and Centre for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Jack D Evans
- Chair of Inorganic Chemistry, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany.
| | - Volodymyr Bon
- Chair of Inorganic Chemistry, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany.
| | - Irena Senkovska
- Chair of Inorganic Chemistry, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany.
| | - François-Xavier Coudert
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie, Paris, 75005, Paris, France
| | - Daniel M Többens
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Dirk Wallacher
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Nico Grimm
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Stefan Kaskel
- Chair of Inorganic Chemistry, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany.
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19
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Zhu X, Huang X, Anwer S, Wang N, Zhang L. Nitrogen-Doped Porous Carbon Nanospheres Activated under Low ZnCl 2 Aqueous System: An Electrode for Supercapacitor Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9284-9290. [PMID: 32674576 DOI: 10.1021/acs.langmuir.0c01670] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We reported a controlled synthesis method to obtained carbon spheres with tunable geometry under low ZnCl2 aqueous solution conditions using polytriazine as a precursor. The polytriazine precursor was polymerized by mixing/reaction of 2,6-diaminopyridine and formaldehyde in the presence of a diluted ZnCl2 aqueous system. The obtained nanospheres were then decomposed to adulterate nitrogen porous carbon nanospheres (N-PCNSs) by the decomposition and blistering process at high temperature by degrees. ZnCl2 worked as a solid-template and played the role of a stabilizing and foaming agent in the reaction. The as-prepared N-PCNSs with controllable spherical geometry, large micro-/mesoporous volume and high nitrogen content (∼8.5 wt %) were employed in electric double-layer capacitors that have a good specific capacitance (636 F/g at 1 A/g) and are long lasting. Besides, the N-PCNS delivered a high energy density of 22.1 Wh/Kg at a power density of 500 W/kg.
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Affiliation(s)
- Xingxing Zhu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Xinhua Huang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Shoaib Anwer
- Mechanical Engineering, Khalifa University of Science and Technology, P. O. Box 127788 Abu Dhabi, UAE
| | - Nuoya Wang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
| | - Lidong Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, 200241 Shanghai, P. R. China
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20
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Characterization of Carbon Materials for Hydrogen Storage and Compression. C — JOURNAL OF CARBON RESEARCH 2020. [DOI: 10.3390/c6030046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Carbon materials have proven to be a suitable choice for hydrogen storage and, recently, for hydrogen compression. Their developed textural properties, such as large surface area and high microporosity, are essential features for hydrogen adsorption. In this work, we first review recent advances in the physisorption characterization of nanoporous carbon materials. Among them, approaches based on the density functional theory are considered now standard methods for obtaining a reliable assessment of the pore size distribution (PSD) over the whole range from narrow micropores to mesopores. Both a high surface area and ultramicropores (pore width < 0.7 nm) are needed to achieve significant hydrogen adsorption at pressures below 1 MPa and 77 K. However, due to the wide PSD typical of activated carbons, it follows from an extensive literature review that pressures above 3 MP are needed to reach maximum excess uptakes in the range of ca. 7 wt.%. Finally, we present the adsorption–desorption compression technology, allowing hydrogen to be compressed at 70 MPa by cooling/heating cycles between 77 and 298 K, and being an alternative to mechanical compressors. The cyclic, thermally driven hydrogen compression might open a new scenario within the vast field of hydrogen applications.
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21
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Li J, Rao Q, Xia Y, Hoepfner M, Deo MD. Confinement-Mediated Phase Behavior of Hydrocarbon Fluids: Insights from Monte Carlo Simulations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:7277-7288. [PMID: 32525322 DOI: 10.1021/acs.langmuir.0c00652] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The phase behavior of hydrocarbon fluids confined in porous media has been reported to deviate significantly from that in the bulk environment due to the existence of sub-10 nm pores. Though experiments and simulations have measured the bubble/dew points and sorption isotherms of hydrocarbons confined in both natural and synthetic nanopores, the confinement effects in terms of the strength of fluid-pore interactions tuned by surface wettability and chemistry have received comparably less discussion. More importantly, the underlying physics of confinement-induced phenomena remain obfuscated. In this work, we studied the phase behavior and capillary condensation of n-hexane to understand the effects of confinement at the molecular level. To systematically investigate the pore effects, we constructed two types of wall confinements; one is a structureless virtual wall described by the Steele potential and the other one is an all-atom amorphous silica structure with surface modified by hydroxyl groups. Our numerical results demonstrated the importance of fluid-pore interaction, pore size, and pore morphology effects in mediating the pressure-volume-temperature (PVT) properties of hydrocarbons. The most remarkable finding of this work was that the saturation pressure predicted from the van der Waals-type adsorption isothermal loop could be elevated or suppressed relative to the bulk phase, as illustrated in the graphical abstract. As the surface energy (i.e., fluid-pore interaction) decreased, the isothermal vapor pressure increased, indicating a greater preference for the fluid to exist in the vapor state. Sufficient reduction of the fluid-pore interactions could even elevate the vapor pressure above that of the bulk fluid.
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Affiliation(s)
- Jiaoyan Li
- Energy and Environment Science & Technology, Idaho National Laboratory, 1955 North Fremont Avenue, Idaho Falls, Idaho 83415-2025, United States
| | - Qi Rao
- Energy and Environment Science & Technology, Idaho National Laboratory, 1955 North Fremont Avenue, Idaho Falls, Idaho 83415-2025, United States
| | - Yidong Xia
- Energy and Environment Science & Technology, Idaho National Laboratory, 1955 North Fremont Avenue, Idaho Falls, Idaho 83415-2025, United States
| | - Michael Hoepfner
- Department of Chemical Engineering, The University of Utah, 50 Central Campus Drive, Salt Lake City, Utah 84112, United States
| | - Milind D Deo
- Department of Chemical Engineering, The University of Utah, 50 Central Campus Drive, Salt Lake City, Utah 84112, United States
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22
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Alotaibi N, Hammud HH, Karnati RK, Hussain SG, Mazher J, Prakasam T. Cobalt-carbon/silica nanocomposites prepared by pyrolysis of a cobalt 2,2'-bipyridine terephthalate complex for remediation of cationic dyes. RSC Adv 2020; 10:17660-17672. [PMID: 35515619 PMCID: PMC9053640 DOI: 10.1039/d0ra02752a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 04/27/2020] [Indexed: 12/19/2022] Open
Abstract
Recently, carbon nanostructures have attracted interest because of their unique properties and interesting applications. Here, CoC@SiO2-850 (3) and CoC@SiO2-600 (4) cobalt–carbon/silica nanocomposites were prepared by solid-state pyrolysis of anthracene with Co(tph)(2,2′-bipy)·4H2O (1) complex in the presence of silica at 850 and 600 °C, respectively, where 2,2′-bipy is 2,2′-bipyridine and tph is the terephthalate dianion. Moreover, Co(μ-tph)(2,2′-bipy) (2) was isolated and its X-ray structure indicated that cobalt(ii) has a distorted trigonal prismatic coordination geometry. 2 is a metal–organic framework consisting of one-dimensional zigzag chains within a porous grid network. 3 and 4 consist of cobalt(0)/cobalt oxide nanoparticles with a graphitic shell and carbon nanotubes embedded in the silica matrix. They were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). XPS revealed that the nanocomposites are functionalized with oxygen-containing groups, such as carboxylic acid groups. In addition, the presence of metallic cobalt nanoparticles embedded in graphitized carbon was verified by XRD and TEM. The efficiency of 3 for adsorption of crystal violet (CV) dye was investigated by batch and column experiments. At 25 °C, the Langmuir adsorption capacity of 3 for CV was 214.2 mg g−1 and the fixed-bed column capacity was 36.3 mg g−1. The adsorption data were well fitted by the Freundlich isotherm and pseudo-second-order kinetic model. The adsorption process was spontaneous and endothermic. A cobalt–carbon@silica nanocomposite was synthesized from a cobalt 2,2′-bipyridine terephthalate complex and its adsorption behavior towards crystal violet dye was tested using batch and column techniques.![]()
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Affiliation(s)
- Nusaybah Alotaibi
- Department of Chemistry, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia +966 13 589 9579
| | - Hassan H Hammud
- Department of Chemistry, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia +966 13 589 9579
| | - Ranjith Kumar Karnati
- Department of Chemistry, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia +966 13 589 9579
| | - Syed Ghazanfar Hussain
- Department of Physics, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia
| | - Javed Mazher
- Department of Physics, College of Science, King Faisal University Al-Ahsa 31982 Saudi Arabia
| | - Thirumurugan Prakasam
- Chemistry Program, New York University Abu Dhabi (NYUAD) Abu Dhabi United Arab Emirates
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23
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Politakos N, Barbarin I, Cantador LS, Cecilia JA, Mehravar E, Tomovska R. Graphene-Based Monolithic Nanostructures for CO2 Capture. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06998] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nikolaos Politakos
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa, 72, Donostia-San Sebastian 20018, Spain
| | - Iranzu Barbarin
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa, 72, Donostia-San Sebastian 20018, Spain
| | - Luis Serrano Cantador
- Inorganic Chemistry and Chemical Engineering Department, University of Cordoba, 14014 Cordoba, Spain
| | - Juan Antonio Cecilia
- Inorganic Chemistry, Crystallography and Mineralogy, University of Malaga, 29071 Malaga, Spain
| | - Ehsan Mehravar
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa, 72, Donostia-San Sebastian 20018, Spain
| | - Radmila Tomovska
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa, 72, Donostia-San Sebastian 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Spain
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24
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Geng S, Wei J, Jonasson S, Hedlund J, Oksman K. Multifunctional Carbon Aerogels with Hierarchical Anisotropic Structure Derived from Lignin and Cellulose Nanofibers for CO 2 Capture and Energy Storage. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7432-7441. [PMID: 31961641 PMCID: PMC7307840 DOI: 10.1021/acsami.9b19955] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/21/2020] [Indexed: 05/19/2023]
Abstract
In current times, CO2 capture and lightweight energy storage are receiving significant attention and will be vital functions in next-generation materials. Porous carbonaceous materials have great potential in these areas, whereas most of the developed carbon materials still have significant limitations, such as nonrenewable resources, complex and costly processing, or the absence of tailorable structure. In this study, a new strategy is developed for using the currently underutilized lignin and cellulose nanofibers, which can be extracted from renewable resources to produce high-performance multifunctional carbon aerogels with a tailorable, anisotropic pore structure. Both the macro- and microstructure of the carbon aerogels can be simultaneously controlled by carefully tuning the weight ratio of lignin to cellulose nanofibers in the precursors, which considerably influences their final porosity and surface area. The designed carbon aerogels demonstrate excellent performance in both CO2 capture and capacitive energy storage, and the best results exhibit a CO2 adsorption capacity of 5.23 mmol g-1 at 273 K and 100 kPa and a specific electrical double-layer capacitance of 124 F g-1 at a current density of 0.2 A g-1, indicating that they have great future potential in the relevant applications.
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Affiliation(s)
- Shiyu Geng
- Division
of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87 Luleå, Sweden
- E-mail:
| | - Jiayuan Wei
- Division
of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Simon Jonasson
- Division
of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Jonas Hedlund
- Chemical
Technology, Department of Civil, Environmental and Natural Resources
Engineering, Luleå University of Technology, SE-97 187 Luleå, Sweden
| | - Kristiina Oksman
- Division
of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87 Luleå, Sweden
- Fibre
and Particle Engineering, University of
Oulu, FI-90014 Oulu, Finland
- Mechanical
& Industrial Engineering (MIE), University
of Toronto, Toronto, ON, Canada M5S 3G8
- E-mail:
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