1
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He Z, Lei Q, Dai W, Zhang H. Solvent Tunes the Selectivity of Alkenes Epoxidation over Ti-Beta Zeolite: A Systematic Kinetic Assessment on Elementary Steps, Kinetically Relevant and Reaction Barriers. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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2
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Jahan I, Rupam TH, Palash ML, Rocky KA, Saha BB. Energy efficient green synthesized MOF-801 for adsorption cooling applications. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117760] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Thermodynamic analysis of promising biomass-derived activated carbons/CO2 based adsorption cooling systems. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101457] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Rocky KA, Pal A, Moniruzzaman M, Saha BB. Adsorption characteristics and thermodynamic property fields of polymerized ionic liquid and polyvinyl alcohol based composite/CO2 pairs. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111555] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Hwang J, Pini R. Supercritical CO 2 and CH 4 Uptake by Illite-Smectite Clay Minerals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:11588-11596. [PMID: 31478655 DOI: 10.1021/acs.est.9b03638] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Clay minerals abound in sedimentary formations and the interaction of reservoir gases with their submicron features have direct relevance to many geoenergy applications. The quantification of gas uptake over a broad range of pressures is key toward assessing the significance of these physical interactions on enhancing storage capacity and gas recovery. We report a systematic investigation of the sorption properties of three source clay minerals-Na-rich montmorillonite (SWy-2), illite-smectite mixed layer (ISCz-1), and illite (IMt-2)-using CO2 and CH4 up to 30 MPa at 25-115 °C. The textural characterization of the clays by gas physisorption indicates that micropores are only partly accessible to N2 (77 K) and Ar (87 K), while larger uptakes are measured with CO2 (273 K) in the presence of illite. The supercritical excess sorption experiments confirm these findings while revealing differences in uptake capacities that originate from the clay-specific pore size distribution. The lattice density functional theory model describes accurately the measured sorption isotherms by using a distribution of properly weighted slit pores and clay-specific solid-fluid interaction energies, which agree with isosteric heats of adsorption obtained experimentally. The model indicates that the maximum degree of pore occupancy is universal to the three clays and the two gases, and it depends solely on temperature, reaching values near unity at the critical temperature. These observations greatly support the model's predictive capability for estimating gas adsorption on clay-bearing rocks and sediments.
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Affiliation(s)
- Junyoung Hwang
- Department of Chemical Engineering , Imperial College London , SW7 2AZ London , U.K
| | - Ronny Pini
- Department of Chemical Engineering , Imperial College London , SW7 2AZ London , U.K
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6
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Murialdo M, Weadock NJ, Liu Y, Ahn CC, Baker SE, Landskron K, Fultz B. High-Pressure Hydrogen Adsorption on a Porous Electron-Rich Covalent Organonitridic Framework. ACS OMEGA 2019; 4:444-448. [PMID: 31459342 PMCID: PMC6648737 DOI: 10.1021/acsomega.8b03206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 12/18/2018] [Indexed: 06/10/2023]
Abstract
We report that a porous, electron-rich, covalent, organonitridic framework (PECONF-4) exhibits an unusually high hydrogen uptake at 77 K, relative to its specific surface area. Chahine's rule, a widely cited heuristic for hydrogen adsorption, sets a maximum adsorptive uptake of 1 wt % hydrogen at 77 K per 500 m2 of the adsorbent surface area. High-pressure hydrogen adsorption measurements in a Sieverts apparatus showed that PECONF-4 exceeds Chahine's rule by 50%. The Brunauer-Emmett-Teller (BET) specific surface area of PECONF-4 was measured redundantly with nitrogen, argon, and carbon dioxide and found to be between 569 ± 2 and 676 ± 13 m2 g-1. Furthermore, hydrogen on PECONF-4 has a high heat of adsorption, in excess of 9 kJ mol-1.
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Affiliation(s)
- Maxwell Murialdo
- Lawrence
Livermore National Laboratory, Livermore, California 94550, United States
| | - Nicholas J. Weadock
- Department
of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Yiqun Liu
- Department
of Chemistry, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Channing C. Ahn
- Department
of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Sarah E. Baker
- Lawrence
Livermore National Laboratory, Livermore, California 94550, United States
| | - Kai Landskron
- Department
of Chemistry, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Brent Fultz
- Department
of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California 91125, United States
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7
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Novel insights into the adsorption mechanism of methylene blue onto organo-bentonite: Adsorption isotherms modeling and molecular simulation. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.10.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Salehi S, Anbia M. Highly efficient CO2
capture with a metal-organic framework-derived porous carbon impregnated with polyethyleneimine. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4390] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Samira Salehi
- Research Laboratory of Nanoporous Materials, Faculty of Chemistry; Iran University of Science and Technology, Farjam Street, Narmak; PO Box 16846-13114 Tehran Iran
| | - Mansoor Anbia
- Research Laboratory of Nanoporous Materials, Faculty of Chemistry; Iran University of Science and Technology, Farjam Street, Narmak; PO Box 16846-13114 Tehran Iran
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9
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Sharma A, Babarao R, Medhekar NV, Malani A. Methane Adsorption and Separation in Slipped and Functionalized Covalent Organic Frameworks. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05031] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Abhishek Sharma
- Department of Materials Engineering, Monash University, Clayton, Victoria 3168, Australia
| | - Ravichandar Babarao
- Commonwealth Scientific
and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3169, Australia
- School of Science, RMIT University, Melbourne, Victoria 3001, Australia
| | - Nikhil V. Medhekar
- Department of Materials Engineering, Monash University, Clayton, Victoria 3168, Australia
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10
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Zukal A, Shamzhy M, Kubů M, Čejka J. The effect of pore size dimensions in isoreticular zeolites on carbon dioxide adsorption heats. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2017.12.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Murialdo M, Ahn CC, Fultz B. A thermodynamic investigation of adsorbate-adsorbate interactions of carbon dioxide on nanostructured carbons. AIChE J 2017. [DOI: 10.1002/aic.15996] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Maxwell Murialdo
- Dept. of Applied Physics and Materials Science; California Institute of Technology; Pasadena CA 91125
| | - Channing C. Ahn
- Dept. of Applied Physics and Materials Science; California Institute of Technology; Pasadena CA 91125
| | - Brent Fultz
- Dept. of Applied Physics and Materials Science; California Institute of Technology; Pasadena CA 91125
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12
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Verma S, Prasad B, Mishra IM. Treatment of purified terephthalic acid wastewater using a bio-waste-adsorbent bagasse fly ash (BFA). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:1953-1966. [PMID: 27798804 DOI: 10.1007/s11356-016-7986-1] [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: 07/18/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
Purified terephthalic acid (PTA) plant of a petrochemical unit generates wastewater having high pollution load. Acid treatment of this wastewater reduces the chemical oxygen demand (COD) load by more than 50%, still leaving substantial COD load (>1500 mg/L) which should be removed. The present study reports on the use of a bio-waste-adsorbent bagasse fly ash (BFA) for the reduction of COD and other recalcitrant acids from this wastewater. The BFA showed basic character and was mesoporous with a BET specific surface area of 82.4 m2/g. Optimum conditions for the adsorptive treatment of acid-pretreated PTA wastewater were found to be as follows: initial pH (pHi) = 4, BFA dosage = 15 g/L, and contact time = 3 h. Adsorption treatment resulted in 58.2% removal of COD, 96.3% removal of terephthalic acid (TA), and 99.9% removal of benzoic acid (BA). TA and BA were removed from the pretreated PTA wastewater through precipitation and sedimentation of un-dissociated acid molecules inside the mesopores of the BFA. The results showed that the COD removed by the BFA followed pseudo-second-order kinetics. Equilibrium sorption data were best correlated by the Freundlich isotherm. The process of adsorptive removal of COD was found to be exothermic. The change in the Gibbs free energy was found to be negative, suggesting that the adsorption process is spontaneous and feasible for the treatment of PTA wastewater.
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Affiliation(s)
- Shilpi Verma
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India.
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India.
| | - Basheshwar Prasad
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Indra Mani Mishra
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
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13
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Chowdhury S, Balasubramanian R. Three-Dimensional Graphene-Based Porous Adsorbents for Postcombustion CO2 Capture. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04052] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shamik Chowdhury
- Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore
| | - Rajasekhar Balasubramanian
- Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore
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14
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Chowdhury S, Balasubramanian R. Holey graphene frameworks for highly selective post-combustion carbon capture. Sci Rep 2016; 6:21537. [PMID: 26879393 PMCID: PMC4754909 DOI: 10.1038/srep21537] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 01/27/2016] [Indexed: 01/26/2023] Open
Abstract
Atmospheric CO2 concentrations continue to rise rapidly in response to increased combustion of fossil fuels, contributing to global climate change. In order to mitigate the effects of global warming, development of new materials for cost-effective and energy-efficient CO2 capture is critically important. Graphene-based porous materials are an emerging class of solid adsorbents for selectively removing CO2 from flue gases. Herein, we report a simple and scalable approach to produce three-dimensional holey graphene frameworks with tunable porosity and pore geometry, and demonstrate their application as high-performance CO2 adsorbents. These holey graphene macrostructures exhibit a significantly improved specific surface area and pore volume compared to their pristine counterparts, and can be effectively used in post-combustion CO2 adsorption systems because of their intrinsic hydrophobicity together with good gravimetric storage capacities, rapid removal capabilities, superior cycling stabilities, and moderate initial isosteric heats. In addition, an exceptionally high CO2 over N2 selectivity can be achieved under conditions relevant to capture from the dry exhaust gas stream of a coal burning power plant, suggesting the possibility of recovering highly pure CO2 for long-term sequestration and/or utilization for downstream applications.
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Affiliation(s)
- Shamik Chowdhury
- Department of Civil &Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore
| | - Rajasekhar Balasubramanian
- Department of Civil &Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Republic of Singapore
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15
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Ullah R, Atilhan M, Anaya B, Al-Muhtaseb S, Aparicio S, Thirion D, Yavuz CT. High performance CO2filtration and sequestration by using bromomethyl benzene linked microporous networks. RSC Adv 2016. [DOI: 10.1039/c6ra13655a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Porous solid sorbents have been investigated for the last few decades to replace the costly amine solution and explore the most efficient and economical material for CO2capture and storage.
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Affiliation(s)
- Ruh Ullah
- Department of Chemical Engineering
- Qatar University
- Doha
- Qatar
| | - Mert Atilhan
- Department of Chemical Engineering
- Qatar University
- Doha
- Qatar
| | - Baraa Anaya
- Department of Chemical Engineering
- Qatar University
- Doha
- Qatar
| | | | | | - Damien Thirion
- Graduate School of EEWS
- KAIST
- Daejeon 305-701
- Republic of Korea
| | - Cafer T. Yavuz
- Graduate School of EEWS
- KAIST
- Daejeon 305-701
- Republic of Korea
- Department of Chemistry
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16
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Zhang Y, Zhang Y, Wang L, Jiang H, Xiong C. Coconut Shell Activated Carbon Supported Quaternary Ammonium for Continuous Cycloaddition of CO2 and Biogas Upgrading in a Packed Bed. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b00331] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yilu Zhang
- Special Glass Key Lab of
Hainan Province, Hainan University, Hainan, Haikou 570228, People’s Republic of China
| | - Yulian Zhang
- Special Glass Key Lab of
Hainan Province, Hainan University, Hainan, Haikou 570228, People’s Republic of China
| | - Lei Wang
- Special Glass Key Lab of
Hainan Province, Hainan University, Hainan, Haikou 570228, People’s Republic of China
| | - Hong Jiang
- Special Glass Key Lab of
Hainan Province, Hainan University, Hainan, Haikou 570228, People’s Republic of China
| | - Chunrong Xiong
- Special Glass Key Lab of
Hainan Province, Hainan University, Hainan, Haikou 570228, People’s Republic of China
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17
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Isotherms, kinetics and thermodynamics for adsorption of pyridine vapors on modified activated carbons. ADSORPTION 2015. [DOI: 10.1007/s10450-015-9648-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Tamilarasan P, Ramaprabhu S. Ionic liquid functionalization – an effective way to tune carbon dioxide adsorption properties of carbon nanotubes. RSC Adv 2015. [DOI: 10.1039/c5ra02159f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this research, the influence of non-covalent functionalization by ionic liquids on carbon dioxide (CO2) adsorption–desorption properties of multi-walled carbon nanotubes (MWNTs) and partially exfoliated MWNTs (PEMWNTs) has been studied.
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Affiliation(s)
- P. Tamilarasan
- Alternative Energy and Nanotechnology Laboratory (AENL)
- Nano Functional Materials Technology Centre (NFMTC)
- Department of Physics
- Indian Institute of Technology Madras
- Chennai – 600036
| | - S. Ramaprabhu
- Alternative Energy and Nanotechnology Laboratory (AENL)
- Nano Functional Materials Technology Centre (NFMTC)
- Department of Physics
- Indian Institute of Technology Madras
- Chennai – 600036
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19
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Verma S, Prasad B, Mishra IM. Adsorption Kinetics and Thermodynamics of COD Removal of Acid Pre-treated Petrochemical Wastewater by using Granular Activated Carbon. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2013.870200] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Schwamberger V, Schmidt FP. Estimating the Heat Capacity of the Adsorbate–Adsorbent System from Adsorption Equilibria Regarding Thermodynamic Consistency. Ind Eng Chem Res 2013. [DOI: 10.1021/ie4011832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valentin Schwamberger
- Energy
and Building Technology Group, Institute of Fluid Machinery, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Baden-Württemberg, Germany
| | - Ferdinand P. Schmidt
- Energy
and Building Technology Group, Institute of Fluid Machinery, Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Baden-Württemberg, Germany
- Fraunhofer Institute for Solar Energy Systems (ISE), 79110 Freiburg, Baden-Württemberg, Germany
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21
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Okhrimenko DV, Nissenbaum J, Andersson MP, Olsson MHM, Stipp SLS. Energies of the adsorption of functional groups to calcium carbonate polymorphs: the importance of -OH and -COOH groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:11062-73. [PMID: 23919655 DOI: 10.1021/la402305x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The adsorption behavior of calcium carbonate is an important factor in many processes in nature, industry, and biological systems. We determined and compared the adsorption energies for a series of small molecules of different sizes and polarities (i.e., water, several alcohols, and acetic acid) on three synthetic CaCO3 polymorphs (calcite, aragonite, and vaterite). We measured isosteric heats of adsorption from vapor adsorption isotherms for 273 < T < 293 K, and we used XRD and SEM to confirm that samples did not change phase during the experiments. Density functional calculations and molecular dynamics simulations complemented the experimental results and aided interpretation. Alcohols with molecular mass greater than that of methanol bind more strongly to the calcium carbonate polymorphs than water and acetic acid. The adsorption energies for the alcohols are typical of chemisorption and indicate alcohol displacement of water from calcium carbonate surfaces. This explains why organisms favor biomolecules that contain alcohol functional groups (-OH) to control which polymorph they use, the crystal face and orientation, and the particle shape and size in biomineralization processes. This new insight is also very useful in understanding organic molecule adsorption mechanisms in soils, sediments, and rocks, which is important for predicting the behavior of mineral-fluid interactions when the challenge is to remediate contaminated groundwater aquifers or to produce oil and gas from reservoirs.
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Affiliation(s)
- D V Okhrimenko
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
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22
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Yuan B, Wu X, Chen Y, Huang J, Luo H, Deng S. Adsorption of CO₂, CH₄, and N₂ on ordered mesoporous carbon: approach for greenhouse gases capture and biogas upgrading. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5474-5480. [PMID: 23688273 DOI: 10.1021/es4000643] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Separation of CO₂ and N₂ from CH₄ is significantly important in natural gas upgrading, and capture/removal of CO₂, CH₄ from air (N₂) is essential to greenhouse gas emission control. Adsorption equilibrium and kinetics of CO₂, CH₄, and N₂ on an ordered mesoporous carbon (OMC) sample were systematically investigated to evaluate its capability in the above two applications. The OMC was synthesized and characterized with TEM, TGA, small-angle XRD, and nitrogen adsorption/desorption measurements. Pure component adsorption isotherms of CO₂, CH₄, and N₂ were measured at 278, 298, and 318 K and pressures up to 100 kPa, and correlated with the Langmuir model. These data were used to estimate the separation selectivities for CO₂/CH₄, CH₄/N₂, and CO₂/N₂ binary mixtures at different compositions and pressures according to the ideal adsorbed solution theory (IAST) model. At 278 K and 100 kPa, the predicted selectivities for equimolar CO₂/CH₄, CH4/N₂, and CO₂/N₂ are 3.4, 3.7, and 12.8, respectively; and the adsorption capacities for CH₄ and CO₂ are 1.3 and 3.0 mmol/g, respectively. This is the first report of a versatile mesoporous material that displays both high selectivities and large adsorption capacities for separating CO₂/CH₄, CH₄/N₂, and CO₂/N₂ mixtures.
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Affiliation(s)
- Bin Yuan
- Chemical Engineering Department, New Mexico State University, Las Cruces, New Mexico 88003, United States
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23
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Adsorptive separation studies of ethane–methane and methane–nitrogen systems using mesoporous carbon. J Colloid Interface Sci 2013; 394:445-50. [DOI: 10.1016/j.jcis.2012.12.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 12/07/2012] [Accepted: 12/08/2012] [Indexed: 11/21/2022]
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24
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Stadie NP, Murialdo M, Ahn CC, Fultz B. Anomalous Isosteric Enthalpy of Adsorption of Methane on Zeolite-Templated Carbon. J Am Chem Soc 2013; 135:990-3. [DOI: 10.1021/ja311415m] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicholas P. Stadie
- W. M. Keck
Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United
States
| | - Maxwell Murialdo
- W. M. Keck
Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United
States
| | - Channing C. Ahn
- W. M. Keck
Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United
States
| | - Brent Fultz
- W. M. Keck
Laboratory, California Institute of Technology, 138-78, Pasadena, California 91125, United
States
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25
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Rahman KA, Loh WS, Ng KC. Heat of Adsorption and Adsorbed Phase Specific Heat Capacity of Methane/Activated Carbon System. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.proeng.2013.03.097] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Chakraborty A, Saha BB, Ng KC, Koyama S, Srinivasan K. Theoretical insight of physical adsorption for a single-component adsorbent+adsorbate system: I. Thermodynamic property surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:2204-11. [PMID: 19140706 DOI: 10.1021/la803289p] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Thermodynamic property surfaces for a single-component adsorbent+adsorbate system are derived and developed from the viewpoint of classical thermodynamics, thermodynamic requirements of chemical equilibrium, Gibbs law, and Maxwell relations. They enable us to compute the entropy and enthalpy of the adsorbed phase, the isosteric heat of adsorption, specific heat capacity, and the adsorbed phase volume thoroughly. These equations are very simple and easy to handle for calculating the energetic performances of any adsorption system. We have shown here that the derived thermodynamic formulations fill up the information gap with respect to the state of adsorbed phase to dispel the confusion as to what is the actual state of the adsorbed phase. We have also discussed and established the temperature-entropy diagrams of (i) CaCl2-in-silica gel+water system for cooling applications, and (ii) activated carbon (Maxsorb III)+methane system for gas storage.
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Affiliation(s)
- Anutosh Chakraborty
- Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260
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27
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Goyal M, Dhawan R, Bhagat M. Adsorption of dimethyl sulfide vapors by activated carbons. Colloids Surf A Physicochem Eng Asp 2008. [DOI: 10.1016/j.colsurfa.2008.02.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Adsorption Equilibrium of Alkanes on a High Surface Area Activated Carbon Prepared from Brazilian Coconut Shells. ADSORPTION 2005. [DOI: 10.1007/s10450-005-4901-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Shen SC, Chen X, Kawi S. CO2 adsorption over Si-MCM-41 materials having basic sites created by postmodification with La2O3. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:9130-9137. [PMID: 15461497 DOI: 10.1021/la049947v] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Moderate basic sites could be created onto mesoporous Si-MCM-41 materials by postsynthesis modification with highly dispersed La2O3. The La2O3-modified MCM-41 materials (designated here as LaM) have been characterized by Fourier transform infrared spectroscopy, temperature-programmed desorption, X-ray photoelectron spectroscopy, X-ray diffraction (XRD), and N2 adsorption/desorption and have been tested as model adsorbents for CO2 adsorption. XRD and N2 adsorption results showed that all LaM materials still maintained their uniform hexagonal mesoporous structure even after postsynthesis modification with La2O3 loading up to 20 wt %. Although the surface area, pore size, and pore volume of LaM materials decreased with increasing La2O3 loading, their capacity for CO2 storage could be significantly improved when La2O3 loading was increased from 0 to 10 wt %. Unidentate and bidentate carbonates have been identified by in situ FTIR as the two types of CO2 species adsorbed on LaM surface. The LaM material also possesses good thermal stability, allowing the model adsorbent to be regenerated at high temperature and recyclable.
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Affiliation(s)
- S C Shen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Republic of Singapore
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Al-Muhtaseb SA, Ritter JA. A Statistical Mechanical Perspective on the Temperature Dependence of the Isosteric Heat of Adsorption and Adsorbed Phase Heat Capacity. J Phys Chem B 1999. [DOI: 10.1021/jp990556c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shaheen A. Al-Muhtaseb
- Department of Chemical Engineering, Swearingen Engineering Center, University of South Carolina, Columbia, South Carolina 29208
| | - James A. Ritter
- Department of Chemical Engineering, Swearingen Engineering Center, University of South Carolina, Columbia, South Carolina 29208
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