capillary condensation in mesopores

Phys. For longer pores, multiple bridging is seen. : Phase separation and liquid crystal self-assembly in surfactant-inorganic-solvent systems. Bookshelf These mechanisms are confirmed by the molecular dynamics simulations. Pore blocking has been observed in the solid state of the pore fillings, but not in the liquid state. We thus compute argon adsorption isotherms on cylindrical pore models and atomistic silica pore models mimicking the MCM-41 . : Gas adsorption in mesoporous micelle-templated silicas: MCM-41, MCM-48, and SBA-15. The .gov means its official. Pore blocking has been observed in the solid state of the pore fillings, but not in the liquid state. : Phase-transitions in a cylindrical poregrand canonical Monte-Carlo, mean field-theory and the Kelvin equation. 2018 May 16;20 (19):13646-13659. doi: 10.1039/c8cp01628c. Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine. Mol. : Studies of liquidvapor equilibria, criticality, and spinodal transitions in nanopores by the gauge cell Monte Carlo simulation method. Colloid Interface Sci. Agreement. Phys. at 293.15 to 353.15 K. A hybrid isotherm model composed of a Henry isotherm and a Sips isotherm was applied to the anal. J Appl Crystallogr. : Adsorption of simple fluid on silica surface and nanopore: effect of surface chemistry and pore shape. At higher pressure, it was found that the pore size distribution obtained by using the standard BJH analysis applied to both simulated adsorption and desorption data qualitatively reproduces the main features of the chord length distribution. Information about registration may be found here. J. Phys. We construct an atomistic silica pore model mimicking templated mesoporous silica MCM-41, which has molecular-level surface roughness, with the aid of the electron density profile (EDP) of MCM-41 obtained from X-ray diffraction data. The GCMC Ar, Kr and Xe adsorption/desorption isotherms are calculated at different temperatures. The resulting aerogels demonstrated a combined type II/IV isotherm with a distinct hysteresis loop (Figure 1g ), which was a characteristic of the capillary condensation occurring in the mesopores. The hysteresis and kinetics of capillary condensation of N2 and Ar in linear mesopores, produced by etching of Si wafers, have been studied for different pore shapes, including the ink bottle, Advances in colloid and interface science, Langmuir : the ACS journal of surfaces and colloids. : A grand canonical Monte Carlo study of capillary condensation in mesoporous media: effect of the pore morphology and topology. Capillary condensation in mesoporous silica with surface roughness. https://doi.org/10.1103/PhysRevLett.92.195704, Physical Review Physics Education Research, Log in with individual APS Journal Account , Log in with a username/password provided by your institution , Get access through a U.S. public or high school library . At the temperature at which . As, for example, the N2 molecule occupies 0.162 nm at 77 K, the total surface area follows directly. C 112, 1080310813 (2008), Neimark, A.V., Vishnyakov, A.: Gauge cell method for simulation studies of phase transitions in confined systems. Score: 4.7/5 (31 votes) . 85, 4359 (1995), Article 160, 4766 (2012), Morishige, K., Ishino, M.: Lower closure point of adsorption hysteresis in ordered mesoporous silicas. Langmuir. Adsorption Adsorption 14, 215221 (2008b), Coasne, B., Galarneau, A., Di Renzo, F., Pellenq, R.J.M. : Generation of atomistic models of periodic mesoporous silica by kinetic Monte Carlo simulation of the synthesis of the material. Absorption is a phenomenon of filling the pores of a solid with liquid water; it occurs by capillary condensation. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted J. Phys. The sparse hysteresis loops were identified as H3 type (for M-H 3 PO 4 and M-NaOH), which are observed with aggregates of plate-like particles giving rise to slit-shaped pores, as well as H4 type (for M-H 2 SO 4 and M-NaOH) that can be correlated to narrow slit . Authors: Desgranges, Caroline; Delhommelle, Jerome Award ID(s): 1955403 Publication Date: 2022-01-01 NSF-PAR ID: 10316085 Journal Name: Entropy Volume: 24 Issue: 1 ISSN: volume19,pages 631641 (2013)Cite this article. Soc. 5 Howick Place | London | SW1P 1WG. Close suggestions Search Search Search Search Pore blocking has been observed in the solid state of the pore fillings, but not in the liquid state. E 62, 46114622 (2000), Neimark, A.V., Ravikovitch, P.I., Vishnyakov, A.: Adsorption hysteresis in nanopores. Disclosed herein are sensors comprising a covalent organic framework (COF). 120, 29132922 (2004a), Coasne, B., Pellenq, R.J.M. Stochastic models of dense or hollow nanoparticles and their scattering properties. Microporous Mesoporous Mater. : Modeling micelle-templated mesoporous material SBA-15: atomistic model and gas adsorption studies. 2022 Springer Nature Switzerland AG. Cited by lists all citing articles based on Crossref citations.Articles with the Crossref icon will open in a new tab. Phys., 2018, 20, 13646 . Follow us on social media and be the first to find out about our news! Before By closing this message, you are consenting to our use of cookies. J. Chem. B 105, 70097020 (2001), Zhao, D.Y., Feng, J.L., Huo, Q.S., Melosh, N., Fredrickson, G.H., Chmelka, B.F., Stucky, G.D.: Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores. Langmuir 16, 42934299 (2000), Miyasaka, K., Neimark, A.V., Terasaki, O.: Density functional theory of in situ synchrotron powder X-ray diffraction on mesoporous crystals: argon adsorption on MCM-41. : Density functional theories and molecular simulations of adsorption and phase transitions in nanopores. Mol. It has been shown on a set of simulated argon isotherms, that evolution with temperature of the GCMC results is similar to experiment. : Ordered mesoporous molecular-sieves synthesized by a liquid-crystal template mechanism. Register a free Taylor & Francis Online account today to boost your research and gain these benefits: An International Journal at the Interface Between Chemistry and Physics, Capillary condensation in a disordered mesoporous medium: a grand canonical Monte Carlo study, Centre de Recherche sur la Matire Divise , CNRS et Universit d'Orlans , 1b rue de la Frollerie, 45071 , Orlans , cedex 02 , France, Laboratoire de Physique la Matire Condense , Ecole Polytechnique , 91128 , Palaiseau , France, /doi/pdf/10.1080/00268970210129265?needAccess=true. J. Chem. and transmitted securely. : Effect of morphological defects on gas adsorption in nanoporous silicas. The model parameters characterising the condensate provide a low-dimensional approximation of its configuration space, and we use a Derjaguin-Broekhoff-de Boer approximation to calculate the free-energy landscape. Abstract Mesopores in inorganic materials are attractive and important spaces for the development of proton conductors, because capillary condensation of water molecules occurs at relatively low relative humidity (RH), allowing for fast transport of protons without excessive humidification. Phys. : Understanding adsorption/desorption hysteresis for fluids in mesoporous materials using simple molecular models and classical density functional theory. Rep. Prog. . capillary condensation in mesopores. The theory predicts that capillary condensation occurs by a nucleation process in which a liquid bridge forms between the two walls, and the pore is filled via the growth of this bridge. : Characterization of MCM-41 using molecular simulation: heterogeneity effects. 121, 37673774 (2004b), Coasne, B., Ugliengo, P.: Atomistic model of micelle-templated mesoporous silicas: structural, morphological, and adsorption properties. Improvement of the Derjaguin-Broekhoff-de Boer theory for the capillary condensation/evaporation of nitrogen in spherical cavities and its application for the pore size analysis of silicas with ordered cagelike mesopores. J Phys Chem B. https://doi.org/10.1007/s10450-013-9486-7. Langmuir 16, 60646066 (2000a), Kanda, H., Miyahara, M., Yoshioka, T., Okazaki, M.: Verification of the condensation model for cylindrical nanopores. cedric.gommes@uliege.be. Acetone vapor adsorption results show NMR chemical-shift changes with time, suggesting initial adsorption into mesopores, followed by diffusion into micropores. J. Phys. : Molecular simulation of nitrogen adsorption in nanoporous silica. the user has read and agrees to our Terms and Type IV adsorption isotherm with hysteresis loop type I indicates that this silica has mesopores without constrictions. Langmuir 25, 58025813 (2009), Ciesla, U., Schuth, F.: Ordered mesoporous materials. B 72, 064122-1064122-7 (2005), Hung, F.R., Bhattacharya, S., Coasne, B., Thommes, M., Gubbins, K.E. A common way of inducing porosity in the size range from 5 to 13 A is based on using single templates -guest molecules whose size is reflected in . xmlui.ArtifactBrowser.Navigation.browse_division Contact D. H. Hill Jr. Library 2 Broughton Drive Campus Box 7111 Raleigh, NC 27695-7111 (919) 515-3364 James B. Langmuir 19, 1013210138 (2003), Hofmann, T., Wallacher, D., Huber, P., Birringer, R., Knorr, K., Schreiber, A., Findenegg, G.H. Google Scholar, Bakaev, V.A., Steele, W.A., Bakaeva, T.I., Pantano, C.G. Chem. Improvement of the Derjaguin-Broekhoff-de Boer theory for capillary condensation/evaporation of nitrogen in mesoporous systems and its implications for pore size analysis of MCM-41 silicas and related materials. The capillary condensation phenomenon of fluids in mesoporous materials is used to understand effects such as confinement of fluids, diffusion of fluids, and even the tortuosity or interconnected porous network [ 4 ]. We present experimental data on the adsorption of CO 2 on CMK-3, ordered carbon with mesopores of 5-6 nm, at various temperatures (185-273 K) and pressures (up to 35 bars). The hysteresis and kinetics of capillary condensation of N2 and Ar in linear mesopores, produced by etching of Si wafers, have been studied for different pore shapes, including the ink bottle geometry. We present experimental data on the adsorption of CO 2 on CMK-3, ordered carbon with mesopores of 5-6 nm, at various temperatures (185-273 K) and pressures (up to 35 bars). The conventional thermodynamic theories cannot achieve it because the metastable capillary condensation inherently includes an activated process. They inferred that the invalid theoretical assumptions (such as multilayer adsorption and capillary condensation under supercritical condition) may be the main reason for the poor performance of BET-based excess models. SiO2,,,,, J. Phys. Methods of detecting analytes with the sensors are also disclosed. Analysis of the nitrogen isotherm for FSM-16. Phys. E 62, R1493R1496 (2000), Neimark, A.V., Ravikovitch, P.I., Vishnyakov, A.: Bridging scales from molecular simulations to classical thermodynamics: density functional theory of capillary condensation in nanopores. Faraday Trans. We conclude that individual local geometries such as the pore mouth, a blind end, or a single constriction have no effect on the shape of sorption isotherms, that the pore space should be regarded as a statistical ensemble of pore segments with a lot of quenched disorder. Phys. Phys. J. Anyone you share the following link with will be able to read this content: Sorry, a shareable link is not currently available for this article. We probe a molecular-scale study of adsorbate adsorption via nuclear magnetic resonance (NMR). Chem. People also read lists articles that other readers of this article have read. We synthesized hierarchical nanoporous carbons from wood, which exhibit Murray's law multiscale structures. Stronger con- We use cookies to improve your website experience. Google Scholar, Rosenfeld, Y.: Free-energy model for the inhomogeneous hard-sphere fluid mixture and density-functional theory of freezing. II(82), 17891800 (1986), Ravikovitch, P.I., Neimark, A.V. Would you like email updates of new search results? Carbon dioxide adsorption on micro- and mesoporous carbonaceous materials in a wide range of temperatures and pressures is of great importance for the problems of gas separations, greenhouse gas capture and sequestration, enhanced hydrocarbon recovery from shales and coals, as well as for the characterization of nanoporous materials using CO2 as a molecular probe. J. Phys. Correspondence to E 64, 011602-1011602-20 (2001), Ravikovitch, P.I., Odomhnaill, S.C., Neimark, A.V., Schuth, F., Unger, K.K. Phenomena of capillary condensation and desorption in siliceous mesoporous molecular sieves (MMS) with cylindrical channels are studied by means of the non-local density functional theory (NLDFT). A condensation transition occurs at t ) tc, and eq 8 thus provides our modification of the classical Cohan relationship.1 Perhaps the most remarkable feature of the new development is the possibility of criticality evident from the form of the right-hand side of eq 8 which, as indicated above, suggests instability of the surface layering . Hunt Jr. Library 1070 Partners Way Campus Box 7132 Raleigh, NC 27606-7132 (919) 515-7110 NC State University Libraries D. H. Hill Jr. Library James B. 27, 131149 (1999), Coasne, B., Pellenq, R.J.M. 2012 Mar 20;28(11):5101-15. doi: 10.1021/la2051228. Langmuir 22, 194202 (2006b), Coasne, B., Galarneau, A., Di Renzo, F., Pellenq, R.J.M. Authors Cedric J Gommes 1 , Anthony P Roberts 2 Affiliations 1 Department of Chemical Engineering, University of Lige, Alle du Six Aot, 3, B-4000 Lige, Belgium. Learn more about Institutional subscriptions, Agrawal, R., Kofke, D.A. Langmuir 19, 20492057 (2003), Soler-Illia, G.J.D., Sanchez, C., Lebeau, B., Patarin, J.: Chemical strategies to design textured materials: from microporous and mesoporous oxides to nanonetworks and hierarchical structures. In this work, a new periodic mesoporous organosilica with urea-bridges produced by the reaction of (3-aminopropyl)triethoxysilane and toluene-2,4-diisocyanate (APS-TDU-PMO) is introduced. CAS This is a preview of subscription content, access via your institution. J. Phys. 76, 203226 (1998), Article . 62, 15731659 (1999), Gommes, C.J., Friedrich, H., Wolters, M., de Jongh, P.E., de Jong, K.P. Using molecular simulations, we study the processes of capillary condensation and capillary evaporation in model mesopores. The absorption/desorption process can effectively reflect the distribution of micropores and mesopores in the material without destroying the pore structure of it, 26 - 28 but . HHS Vulnerability Disclosure, Help Chem. : Small-angle X-ray diffraction of Kr in mesoporous silica: effects of microporosity and surface roughness. (Capillary condensation takes place only in those pores, that are large enough for multilayer adsorption and nucleation of a liquid-like phase, i.e. : Capillary hysteresis in nanopores: theoretical and experimental studies of nitrogen adsorption on MCM-41. Matter 15, 347365 (2003), Peterson, B.K., Gubbins, K.E. Equilibrium adsorption in cylindrical mesopores: a modified Broekhoff and de Boer theory versus density functional theory. Rev. These data represent that a moderate ZnCl 2 content could promote the specific surface area and facilitate the construction of the porous structure and total pore . FOIA 97, 23732419 (1997), Edler, K.J., Reynolds, P.A., White, J.W., Cookson, D.: Diffuse wall structure and narrow mesopores in highly crystalline MCM-41 materials studied by X-ray diffraction. : Quantitative characterization of pore corrugation in ordered mesoporous materials using image analysis of electron tomograms. The BET surface area is shown to be strongly related to this criterion. Department of Chemical Engineering, Kyoto University, Katsura, Nishikyo, Kyoto, 615-8510, Japan, Hideki Tanaka,Tatsumasa Hiratsuka,Natsumi Nishiyama,Kengo Mori&Minoru T. Miyahara, You can also search for this author in This isotherm exposes the existence of well-defined mesopores. A useful insight on the molecular details of the capillary condensation hysteresis in the independent model pores is gained by means of molecular theory and computer simulation techniques (10 . Protein Adsorption into Mesopores: A Combination of Electrostatic Interaction, Counterion Release, and van der . J. Phys. Single-layer adsorption, multi-layer adsorption, and capillary condensation occur in the pores of porous media during the low-temperature nitrogen adsorption experiments. Stochastic analysis of capillary condensation in disordered mesopores Phys Chem Chem Phys. 102, 40934138 (2002), Sonwane, C.G., Jones, C.W., Ludovice, P.J. . An official website of the United States government. Langmuir 16, 66226627 (2000b), Kresge, C.T., Leonowicz, M.E., Roth, W.J., Vartuli, J.C., Beck, J.S. Minoru T. Miyahara. : Adsorption of sample gases in MCM-41 materials: the role of surface roughness. The hysteresis and kinetics of capillary condensation of N2 and Ar in linear mesopores . . DOI:https://doi.org/10.1103/PhysRevLett.92.195704, D. Wallacher1, N. Knzner2, D. Kovalev2, N. Knorr3, and K. Knorr1, Sign up to receive regular email alerts from Physical Review Letters. Soc. Rev. Capillary condensation of argon (triangles) and n-hexane (squares) in silicon nanopores with mean pore diameter of 8 nm as documented by a sorption isotherm measurement recorded at a temperature of 87 K and 273 K, respectively. In regular pores formed by vertical and smooth walls, continuous adsorption is found for the first time in agreement with thermodynamic considerations valid for ideal pores, suggesting that irregularities in the walls and pore openings are the key factors behind the hysteresis phenomenon. 2022 American Physical Society. The single-layer woven meshes can include a nanostructure coating and a hydrophobic coating, while the multi-layer meshes can include a microcavity coating and optionally a hydrophilic coating. B 109, 2339523404 (2005), Tarazona, P.: Free-energy density functional for hard-spheres. Register to receive personalised research and resources by email. Schroeder's paradox is . The site is secure. ISSN 1079-7114 (online), 0031-9007 (print). The material condensed in the micropores as well as the first two adsorbed monolayers in the mesopores do not exhibit any caloric anomaly. The U.S. Department of Energy's Office of Scientific and Technical Information C 111, 1575915770 (2007), Coasne, B., Di Renzo, F., Galarneau, A., Pellenq, R.J.M. Rev. The results are compared with macroscopic thermodynamic approaches based on Kelvin-Cohan (KC) and Derjaguin-Broekhoff-de Boer (DBdB) equations. As a result, gas adsorption predominantly relies on capillary condensation action [ 61 ]. This is done through a multiphase generalisation of the standard Gaussian random field model of disordered materials. This gives only a crude approximation to actual adsorbed liquid behavior. Capillary condensation in a disordered m . Medicine, Dentistry, Nursing & Allied Health. At higher relative pressures, more gas molecules have access to the mesopores (between 2 and 50 nm) and macropores (greater than 50 nm), and the interaction among gas molecules acts as the dominant force. Adsorption 13, 425437 (2007), Imperor-Clerc, M., Davidson, P., Davidson, A.: Existence of a microporous corona around the mesopores of silica-based SBA-15 materials templated by triblock copolymers. The solidification and melting transformation affects only the pore condensate beyond approx. Therefore, at very low relative pressures P/P 0 < 0.1, the adsorption isotherm exhibited a steep rise associated with micropore filling, but the presence of a hysteresis loop indicates capillary condensation in mesopores. X-ray diffraction patterns of ethanol confined in parallel-aligned channels of 10 nm diameter and 50 m length in mesoporous silicon have been recorded as a function of filling fraction, temperature, The influence of pore size and chemical heterogeneity on the adsorption/desorption hysteresis loop of a LennardJones fluid confined within simple models of heterogeneous cylindrical nanopores is, E. Garbozi, D. Bentz, and N. Martys, Digital Images and Computer Modelling. eCollection 2020 Jun 1. Hunt Jr. Library Design Library Langmuir 22, 1109711105 (2006a), Coasne, B., Hung, F.R., Pellenq, R.J.M., Siperstein, F.R., Gubbins, K.E. B 110, 319333 (2006), Siperstein, F.R., Gubbins, K.E. This work was financially supported by a Grant-in-Aid for Scientific Research (B) 24360318 from MEXT. Phys. Langmuir 22, 1117111179 (2006), Ravikovitch, P.I., Vishnyakov, A., Neimark, A.V. 63, 980983 (1989), Schumacher, C., Gonzalez, J., Wright, P.A., Seaton, N.A. Adsorption, capillary bridge formation, and cavitation in SBA-15 corrugated mesopores: a Derjaguin-Broekhoff-de Boer analysis. introduction to the main spherical cavity.10-14 both cylindrical and spherical geometries are characterized by strong confine- it is commonly known that the wetting and capillary ment effects that cause a shift in the capillary condensation condensation/evaporation of adsorbates in pores is con- transition to the lower relative pressures Phys. Chem. 2020 May 29;53(Pt 3):811-823. doi: 10.1107/S1600576720005464. TTIP was mixed with H 2 O, and then . Lett. This site needs JavaScript to work properly. [18] In gen-eral, confinement in a porous structure shifts condensation of a fluid toward lower pressures, compared to bulk. : A model for the structure of MCM-41 incorporating surface roughness. To examine the mechanisms of condensation and evaporation of water in mesoporous carbons without surface functional groups and micropores, we measured gravimetrically the adsorption-desorption isotherms of water on ordered mesoporous carbons with and without surface functional groups and micropores at various temperatures between 265 and 295 K. Water wets partially the pore walls of the . The spectra show specific transformations caused by fluid adsorption and condensation in nanopores. Traditionally, the effect of disorder is theoretically analyzed in a perturbative approach whereby slight elements of disorder (constriction, corrugation) are added to geometrically ideal pores. Langmuir 23, 1102111026 (2007), Morishige, K., Ito, M.: Capillary condensation of nitrogen in MCM-41 and SBA-15. Stochastic analysis of capillary condensation in disordered mesopores C. J. Gommes and A. P. Roberts, Phys. Y. Yortsos, Probing Pore Structures by Sorption, The examination of phase transitions and critical phenomena has dominated statistical physics for the latter half of this century--there is a great theoretical challenge in solving special, By clicking accept or continuing to use the site, you agree to the terms outlined in our. Similar regimes are observed for the isotherms at a xed temperature and varying pore sizes. We investigate the influence of temperature on CO 2 adsorption focusing on the capillary condensation and hysteresis phenomena. In this isotherm, a sharp inflection at p/p = 0.3-0.4 is related to the nitrogen capillary condensation in the uniform mesopores, which confirms the mesoporous structure of synthesized Fe 3 O 4 @Fe-Cu/MCM-41. 8600 Rockville Pike J. Phys. with diameter from 20 to 500 A, or mesopores [6]). The mixture was placed under reduced pressure to incorporate the carbon source into the mesopores of Ti-SBA-15 by capillary force until the powders became dry. Abstract We study the interplay between hysteresis and equilibrium behavior in capillary condensation of fluids in mesoporous disordered materials via a mean-field density functional theory of a disordered lattice-gas model. The theory of capillary vaporization from adsorbent mesopores, first proposed by Broeckhoff and de Boer in [i, 2], and then later modified in [3-5], assumes the surface tension of the adsorbed liquid to be independent of the meniscus curvature. of water adsorption on mesopores including its surface adsorption and capillary condensation. : Molecular simulation of adsorption and intrusion in nanopores. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. Rev. Abstract The hysteresis and kinetics of capillary condensation of N2 and Ar in linear mesopores, produced by etching of Si wafers, have been studied for different pore shapes, including the ink bottle geometry. At the temperature at which the hysteresis loop disappears, it was found that the compressibility of the dense liquid-like phase at the maximum of the so-called hysteretic coexistence curves increases significantly. Langmuir 13, 17371745 (1997), Miyahara, M., Kanda, H., Yoshioka, T., Okazaki, M.: Modeling capillary condensation in cylindrical nanopores: a molecular dynamics study. Capillary phenomena condensation The principle underlying surface area measurements is simple physisorb an inert gas such as argon or nitrogen and determine how many molecules are needed to form a complete monolayer. Then, we present the GCMC simulations of argon adsorption on our atomistic silica pore models for two different MCM-41 samples at 75, 80, and 87K, and the results are compared with the experimental adsorption data. A 31, 26722679 (1985), Tarazona, P., Marconi, U.M.B., Evans, R.: Phase-equilibria of fluid interfaces and confined fluidsnonlocal versus local density functionals. MeSH Capillary condensation is an important factor in both naturally occurring and synthetic porous structures. 3099067 Subscription Epub 2012 Mar 6. . Lett. . Please enable it to take advantage of the complete set of features! In the low pressure and temperature domain, different adsorption scenarios can be interpreted on the basis of a Zisman-type of criterion for wetting. Using Monte Carlo (MC) simulations in the . Computer simulation and experimental study. Phys. Please note: We are unable to provide a copy of the article, please see our help page How do I view content? Part of Springer Nature. to examine the mechanisms of condensation and evaporation of water in mesoporous carbons without surface functional groups and micropores, we measured gravimetrically the adsorption-desorption. Langmuir 20, 45034506 (2004), Morishige, K., Fujii, H., Uga, M., Kinukawa, D.: Capillary critical point of argon, nitrogen, oxygen, ethylene, and carbon dioxide in MCM-41. Phys. Perchlorate removal by a combined heterotrophic and bio-electrochemical hydrogen autotrophic system. . Open navigation menu. In addition, as for the mesopores with pore size greater than 2 nm, since both water molecules and CO 2 molecules can . The theory predicts that capillary condensation occurs by a nucleation process in which a liquid bridge forms between the two walls, and the pore is filled via the growth of this bridge. Registered in England & Wales No. J. Chem. Rev. Phase Behavior and Capillary Condensation Hysteresis of Carbon Dioxide in Mesopores Author: Silvio Dantas, Katie Cychosz Struckhoff, Matthias Thommes, Alexander V. Neimark Source: Langmuir 2019 v.35 no.35 pp. nomena in mesopores of well-defined geometry. Condensation step at p/p o about 0.8 indicates relatively large mesopores, about 12 nm. https://doi.org/10.1007/s10450-013-9486-7, DOI: https://doi.org/10.1007/s10450-013-9486-7. We investigate the influence of temperature on CO 2 adsorption focusing on the capillary condensation and hysteresis phenomena.

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