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Fu J, Wang S, Liang J, Alahakoon SH, Wu D, Luo J, Duan H, Zhang S, Zhao F, Li W, Li M, Hao X, Li X, Chen J, Chen N, King G, Chang LY, Li R, Huang Y, Gu M, Sham TK, Mo Y, Sun X. Superionic Conducting Halide Frameworks Enabled by Interface-Bonded Halides. J Am Chem Soc 2023; 145:2183-2194. [PMID: 36583711 DOI: 10.1021/jacs.2c09446] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The revival of ternary halides Li-M-X (M = Y, In, Zr, etc.; X = F, Cl, Br) as solid-state electrolytes (SSEs) shows promise in realizing practical solid-state batteries due to their direct compatibility toward high-voltage cathodes and favorable room-temperature ionic conductivities. Most of the reported superionic halide SSEs have a structural pattern of [MCl6]x- octahedra and generate a tetrahedron-assisted Li+ ion diffusion pathway. Here, we report a new class of zeolite-like halide frameworks, SmCl3, for example, in which 1-dimensional channels are enclosed by [SmCl9]6- tricapped trigonal prisms to provide a short jumping distance of 2.08 Å between two octahedra for Li+ ion hopping. The fast Li+ diffusion along the channels is verified through ab initio molecular dynamics simulations. Similar to zeolites, the SmCl3 framework can be grafted with halide species to obtain mobile ions without altering the base structure, achieving an ionic conductivity over 10-4 S cm-1 at 30 °C with LiCl as the adsorbent. Moreover, the universality of the interface-bonding behavior and ionic diffusion in a class of framework materials is demonstrated. It is suggested that the ionic conductivity of the MCl3/halide composite (M = La-Gd) is likely in correlation with the ionic conductivity of the grafted halide species, interfacial bonding, and framework composition/dimensions. This work reveals a potential class of halide structures for superionic conductors and opens up a new frontier for constructing zeolite-like frameworks in halide-based materials, which will promote the innovation of superionic conductor design and contribute to a broader selection of halide SSEs.
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Affiliation(s)
- Jiamin Fu
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada.,Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Shuo Wang
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Jianwen Liang
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Sandamini H Alahakoon
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Duojie Wu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing Luo
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Hui Duan
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Shumin Zhang
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada.,Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Feipeng Zhao
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Weihan Li
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Minsi Li
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Xiaoge Hao
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Xiaona Li
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Jiatang Chen
- Chemical Engineering, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Ning Chen
- Canadian Light Source Inc., University of Saskatchewan, Saskatoon, Saskatchewan S7N 2V3, Canada
| | - Graham King
- Canadian Light Source Inc., University of Saskatchewan, Saskatoon, Saskatchewan S7N 2V3, Canada
| | - Lo-Yueh Chang
- National Synchrotron Radiation Research Centre, 101 Hsin-Ann Road, Hsinchu 30076, Taiwan
| | - Ruying Li
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Yining Huang
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Meng Gu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Yifei Mo
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9, Canada
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Yu YS, Tan RR, Ding HM. Controlling ion transport in a C 2N-based nanochannel with tunable interlayer spacing. Phys Chem Chem Phys 2020; 22:16855-16861. [PMID: 32666963 DOI: 10.1039/d0cp02993a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective ion transport through a nanochannel formed by stacked two-dimensional materials plays a key role in water desalination, nanofiltration, and ion separation. Although there have been many functional nanomaterials used in these applications, how to well control ion transport in a laminar structure so as to obtain the desired selectivity still remains a challenging problem. In the present work, the transport of ions through a C2N-based nanochannel is investigated by using all-atom molecular dynamics simulation. It is found that C2N-based nanochannels with different interlayer spacing posses diverse ion selectivity, which is mainly attributed to the distinct loading capability among ions and the different velocity of ions inside the nanochannel. Moreover, we also find that the ion selectivity is dependent on the electric field, but nearly independent of the salt concentration. The present study may provide some physical insights into the experimental design of C2N-based nanodevices in nanofiltration.
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Affiliation(s)
- You-Sheng Yu
- School of Science, East China University of Technology, Nanchang 330013, China
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3
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Buhl J, Petrov V. The Hydrothermal Synthesis of Sulfate Cancrinite (SO
4
‐CAN): Relations between Si‐Al Sources and Crystal Quality. Z Anorg Allg Chem 2019. [DOI: 10.1002/zaac.201900126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Josef‐Christian Buhl
- Institute of Mineralogy Leibniz University Hannover Callinstr. 3 30167 Hannover Germany
| | - Valeriy Petrov
- Institute of Mineralogy Leibniz University Hannover Callinstr. 3 30167 Hannover Germany
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Hydrothermal Conversion of Red Mud into Magnetic Adsorbent for Effective Adsorption of Zn(II) in Water. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9081519] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Red mud, a Fe-rich waste generated from the aluminum industry, was recovered as an adsorbent for wastewater treatment. The separation process of red mud from water after adsorption, including centrifugation and filtration, was complicated. This study demonstrated an alternative option to recycle red mud for preparing magnetic adsorbent via a facile hydrothermal route using ascorbic acid as reductant. Red mud is weakly magnetized and consists of andradite, muscovite, hematite, and cancrinite. After hydrothermal treatment, andradite in red mud was reductively dissolved by ascorbic acid, and transformed into magnetite and morimotoite. With increasing hydrothermal temperature, the dissolution of andradite accelerated, and the crystallite size of magnetite increased. When the hydrothermal temperature reached 200 °C, the prepared adsorbent P-200 showed a desirable saturation magnetization of 4.1 Am2/kg, and could be easily magnetically separated from water after adsorption. The maximum adsorption capacity of P-200 for Zn2+ was 89.6 mg/g, which is eight-fold higher than that of the raw red mud. The adsorption of Zn2+ by P-200 fitted the Langmuir model, where cation exchange was the main adsorption mechanism. The average distribution coefficient of Zn2+ at low ppm level was 16.81 L/g for P-200, higher than those of the red mud (0.3 L/g) and the prepared P-120 (1.48 L/g) and P-270 (5.48 L/g), demonstrating that P-200 had the best adsorption capacity for Zn2+ and can be served as a practical adsorbent for real-world applications. To our knowledge, this is the first study to report the conversion of red mud into a magnetic adsorbent under mild conditions.
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Chen P, Rizzotto V, Khetan A, Xie K, Moos R, Pitsch H, Ye D, Simon U. Mechanistic Understanding of Cu-CHA Catalyst as Sensor for Direct NH 3-SCR Monitoring: The Role of Cu Mobility. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8097-8105. [PMID: 30706712 DOI: 10.1021/acsami.8b22104] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The concept to utilize a catalyst directly as a sensor is fundamentally and technically attractive for a number of catalytic applications, in particular, for the catalytic abatement of automotive emission. Here, we explore the potential of microporous copper-exchanged chabazite (Cu-CHA, including Cu-SSZ-13 and Cu-SAPO-34) zeolite catalysts, which are used commercially in the selective catalytic reduction of automotive nitrogen oxide emission by NH3 (NH3-SCR), as impedance sensor elements to monitor directly the NH3-SCR process. The NH3-SCR sensing behavior of commercial Cu-SSZ-13 and Cu-SAPO-34 catalysts at typical reaction temperatures (i.e., 200 and 350 °C) was evaluated according to the change of ionic conductivity and was mechanistically investigated by complex impedance-based in situ modulus spectroscopy. Short-range (local) movement of Cu ions within the zeolite structure was found to determine largely the NH3-SCR sensing behavior of both catalysts. Formation of NH3-solvated, highly mobile CuI species showed a predominant influence on the ionic conductivity of both catalysts and, consequently, hindered NH3-SCR sensing at 200 °C. Density functional theory calculations over a model Cu-SAPO-34 system revealed that CuII reduction to CuI by coadsorbed NH3 and NO weakened significantly the coordination of the Cu site to the CHA framework, enabling high mobility of CuI species that influences substantially the NH3-SCR sensing. The in situ spectroscopic and theoretical investigations not only unveil the mechanisms of Cu-CHA catalyst as sensor elements for direct NH3-SCR monitoring but also allow us to get insights into the speciation of active Cu sites in NH3-SCR under different reaction conditions with varied temperatures and gas compositions.
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Affiliation(s)
- Peirong Chen
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , China
- Institute of Inorganic Chemistry , RWTH Aachen University , Landoltweg 1 , Aachen 52074 , Germany
- Center for Automotive Catalytic Systems Aachen , RWTH Aachen University , Aachen 52062 , Germany
| | - Valentina Rizzotto
- Institute of Inorganic Chemistry , RWTH Aachen University , Landoltweg 1 , Aachen 52074 , Germany
- Center for Automotive Catalytic Systems Aachen , RWTH Aachen University , Aachen 52062 , Germany
| | - Abhishek Khetan
- Center for Automotive Catalytic Systems Aachen , RWTH Aachen University , Aachen 52062 , Germany
- Institute for Combustion Technology , RWTH Aachen University , Templergraben 64 , Aachen 52056 , Germany
- Department of Mechanical Engineering , Carnegie Mellon University , 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Kunpeng Xie
- Institute of Inorganic Chemistry , RWTH Aachen University , Landoltweg 1 , Aachen 52074 , Germany
- Center for Automotive Catalytic Systems Aachen , RWTH Aachen University , Aachen 52062 , Germany
| | - Ralf Moos
- Department of Functional Materials and Bayreuth Engine Research Center (BERC) , University of Bayreuth , Bayreuth 95440 , Germany
| | - Heinz Pitsch
- Center for Automotive Catalytic Systems Aachen , RWTH Aachen University , Aachen 52062 , Germany
- Institute for Combustion Technology , RWTH Aachen University , Templergraben 64 , Aachen 52056 , Germany
| | - Daiqi Ye
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy , South China University of Technology , Guangzhou 510006 , China
| | - Ulrich Simon
- Institute of Inorganic Chemistry , RWTH Aachen University , Landoltweg 1 , Aachen 52074 , Germany
- Center for Automotive Catalytic Systems Aachen , RWTH Aachen University , Aachen 52062 , Germany
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6
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Chen P, Rizzotto V, Xie K, Simon U. Tracking mobile active sites and intermediates in NH3-SCR over zeolite catalysts by impedance-based in situ spectroscopy. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00283e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Impedance-based in situ spectroscopy allows direct tracking of the mobile active sites and reaction intermediates in NH3-SCR over zeolite catalysts.
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Affiliation(s)
- Peirong Chen
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control
- School of Environment and Energy
- South China University of Technology
- 510006 Guangzhou
- China
| | - Valentina Rizzotto
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
- Center for Automotive Catalytic Systems Aachen
| | - Kunpeng Xie
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
- Center for Automotive Catalytic Systems Aachen
| | - Ulrich Simon
- Institute of Inorganic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
- Center for Automotive Catalytic Systems Aachen
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7
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Rahman MM, Hussein MA, Alamry KA, Al-Shehry FM, Asiri AM. Polyaniline/graphene/carbon nanotubes nanocomposites for sensing environmentally hazardous 4-aminophenol. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2017.08.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Yu YS, Huang LY, Lu X, Ding HM. Ion transport through a nanoporous C2N membrane: the effect of electric field and layer number. RSC Adv 2018; 8:36705-36711. [PMID: 35558907 PMCID: PMC9088869 DOI: 10.1039/c8ra07795a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 10/16/2018] [Indexed: 12/20/2022] Open
Abstract
Using all-atom molecular dynamic simulations, we show that a monolayer C2N membrane possesses higher permeability and excellent ion selectivity, and that multilayer C2N membranes have promising potential for water desalination.
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Affiliation(s)
- You-sheng Yu
- National Laboratory of Solid State Microstructures
- Department of Physics
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
| | - Lu-yi Huang
- National Laboratory of Solid State Microstructures
- Department of Physics
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
| | - Xiang Lu
- National Laboratory of Solid State Microstructures
- Department of Physics
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210093
| | - Hong-ming Ding
- Center for Soft Condensed Matter Physics and Interdisciplinary Research
- School of Physical Science and Technology
- Soochow University
- Suzhou 215006
- China
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9
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Hussain MM, Rahman MM, Asiri AM. Ultrasensitive and selective 4-aminophenol chemical sensor development based on nickel oxide nanoparticles decorated carbon nanotube nanocomposites for green environment. J Environ Sci (China) 2017; 53:27-38. [PMID: 28372752 DOI: 10.1016/j.jes.2016.03.028] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/02/2016] [Accepted: 03/07/2016] [Indexed: 05/12/2023]
Abstract
Nickel oxide nanoparticles decorated carbon nanotube nanocomposites (NiO·CNT NCs) were prepared in a basic medium by using facile wet-chemical routes. The optical, morphological, and structural properties of NiO·CNT NCs were characterized using Fourier transformed infra-red (FT-IR), Ultra-violet visible (UV/Vis) spectroscopy, field-emission scanning electron microscopy (FESEM), X-ray energy dispersed spectroscopy (XEDS), X-ray photoelectron spectroscopy (XPS), and powder X-ray diffraction (XRD) methods. Selective 4-aminophenol (4-AP) chemical sensor was developed by a flat glassy carbon electrode (GCE, surface area: 0.0316cm2) fabricated with a thin-layer of NCs. Electrochemical responses including higher sensitivity, large dynamic range (LDR), limit of detection (LOD), and long-term stability towards 4-AP were obtained using the fabricated chemical sensors. The calibration curve was found linear (R2=0.914) over a wide range of 4-AP concentration (0.1nmol/L-0.1mol/L). In perspective of slope (2×10-5μA/μM), LOD and sensitivity were calculated as 15.0±0.1pM and ~6.33×10-4μA/(μM·cm) respectively. The synthesized NiO·CNT NCs using a wet-chemical method is a significant route for the development of ultrasensitive and selective phenolic sensor based on nano-materials for environmental toxic substances. It is suggested that a pioneer and selective development of 4-AP sensitive sensor using NiO·CNT NCs by a facile and reliable current vs voltage (I-V) method for the major application of toxic agents in biological, green environmental, and health-care fields in near future.
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Affiliation(s)
- Mohammad Musarraf Hussain
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia; Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia
| | - Mohammed M Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia; Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia.
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia; Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia
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10
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A glutathione biosensor based on a glassy carbon electrode modified with CdO nanoparticle-decorated carbon nanotubes in a nafion matrix. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1987-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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11
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Rahman MM, Abu-Zied BM, Hasan MM, Asiri AM, Hasnat MA. Fabrication of a selective 4-amino phenol sensor based on H-ZSM-5 zeolites deposited silver electrodes. RSC Adv 2016. [DOI: 10.1039/c6ra04124h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A promising sensitive phenolic chemical sensor was developed using a porous pentasil type framework of protonated H-ZSM-5 zeolite by the reliable I–V method.
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Affiliation(s)
- Mohammed M. Rahman
- Center of Excellence for Advanced Material Research (CEAMR) and Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Bahaa M. Abu-Zied
- Center of Excellence for Advanced Material Research (CEAMR) and Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Mohammad M. Hasan
- Department of Chemistry
- Shahjalal University of Science and Technology
- Sylhet 3114
- Bangladesh
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Material Research (CEAMR) and Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Mohammad A. Hasnat
- Department of Chemistry
- Shahjalal University of Science and Technology
- Sylhet 3114
- Bangladesh
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12
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Kang Y, Zhang Z, Shi H, Zhang J, Liang L, Wang Q, Ågren H, Tu Y. Na⁺ and K⁺ ion selectivity by size-controlled biomimetic graphene nanopores. NANOSCALE 2014; 6:10666-10672. [PMID: 25089590 DOI: 10.1039/c4nr01383b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Because biological ionic channels play a key role in cellular transport phenomena, they have attracted extensive research interest for the design of biomimetic nanopores with high permeability and selectivity in a variety of technical applications. Inspired by the structure of K(+) channel proteins, we designed a series of oxygen doped graphene nanopores of different sizes by molecular dynamics simulations to discriminate between K(+) and Na(+) channel transport. The results from free energy calculations indicate that the ion selectivity of such biomimetic graphene nanopores can be simply controlled by the size of the nanopore; compared to K(+), the smaller radius of Na(+) leads to a significantly higher free energy barrier in the nanopore of a certain size. Our results suggest that graphene nanopores with a distance of about 3.9 Å between two neighboring oxygen atoms could constitute a promising candidate to obtain excellent ion selectivity for Na(+) and K(+) ions.
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Affiliation(s)
- Yu Kang
- Department of Chemistry and Soft Matter Research Center, Zhejiang University, Hangzhou 310027, People's Republic of China.
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13
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Schneider AG, Bredow T, Schomborg L, Rüscher CH. Structure and IR Vibrational Spectra of Na8[AlSiO4]6(BH4)2: Comparison of Theory and Experiment. J Phys Chem A 2014; 118:7066-73. [DOI: 10.1021/jp503027h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander G. Schneider
- Mulliken Center
for Theoretical Chemistry, Institut für Physikalische und Theoretische
Chemie, Rheinische Friedrich-Wilhelms Universität Bonn, Beringstrasse 4-6, D-53115 Bonn, Germany
| | - Thomas Bredow
- Mulliken Center
for Theoretical Chemistry, Institut für Physikalische und Theoretische
Chemie, Rheinische Friedrich-Wilhelms Universität Bonn, Beringstrasse 4-6, D-53115 Bonn, Germany
| | - Lars Schomborg
- Institut für
Mineralogie, Leibniz Universität Hannover, Callinstrasse 3, D-30167 Hannover, Germany
| | - Claus H. Rüscher
- Institut für
Mineralogie, Leibniz Universität Hannover, Callinstrasse 3, D-30167 Hannover, Germany
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14
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Zhang R, Zheng S, Ma S, Zhang Y. Recovery of alumina and alkali in Bayer red mud by the formation of andradite-grossular hydrogarnet in hydrothermal process. JOURNAL OF HAZARDOUS MATERIALS 2011; 189:827-835. [PMID: 21444152 DOI: 10.1016/j.jhazmat.2011.03.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 03/02/2011] [Accepted: 03/02/2011] [Indexed: 05/30/2023]
Abstract
Bayer red mud (RM) is an alumina refinery waste product rich in aluminum oxides and alkalis which are present primarily in the form of sodium hydro-aluminosilicate desilication product (DSP). A hydrothermal process was employed to recover alumina and alkali from "Fe-rich" and "Fe-lean" RM, the two representative species of RM produced in China. The hydrothermal process objective phase is andradite-grossular hydrogarnet characterized by the isomorphic substitution of Al and Fe. Batch experiments were used to evaluate the main factors influencing the recovery process, namely reaction temperature, caustic ratio (molar ratio of Na(2)O to Al(2)O(3) in sodium solution), sodium concentration and residence time. The results revealed that the Na(2)O content of 0.5 wt% and A/S of 0.3 (mass ratio of Al(2)O(3) to SiO(2)) in leached residue could be achieved with Fe-rich RM under optimal conditions. However, the hydrothermal treatment of Fe-lean RM proved less successful unless the reaction system was enriched with iron. Subsequent experiments examined the effects of the ferric compound's content and type on the substitution ratio.
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Affiliation(s)
- Ran Zhang
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China.
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15
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Koller H, Weiss M. Solid state NMR of porous materials : zeolites and related materials. Top Curr Chem (Cham) 2011; 306:189-227. [PMID: 21452082 DOI: 10.1007/128_2011_123] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Solid state NMR spectroscopy applied to the science of crystalline micro- and mesoporous silica materials over the past 10 years is reviewed. A survey is provided of framework structure and connectivity analyses from chemical shift effects of various elements in zeolites including heteroatom substitutions, framework defects and pentacoordinated silicon for zeolites containing fluoride ions. New developments in the field of NMR crystallography are included. Spatial host-guest ordering and confinement effects of zeolite-sorbate complexes are outlined, with special emphasis on NMR applications utilizing the heteronuclear dipolar interaction. The characterization of zeolite acid sites and in situ NMR on catalytic conversions is also included. Finally, the motion of extra-framework cations is investigated in two tutorial cases of sodium hopping in sodalite and cancrinite.
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Affiliation(s)
- Hubert Koller
- Institute of Physical Chemistry, University of Münster, Corrensstr. 28/30, 48149, Münster, Germany.
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Titov AV, Wang B, Sint K, Král P. Controllable Synthetic Molecular Channels: Biomimetic Ammonia Switch. J Phys Chem B 2009; 114:1174-9. [DOI: 10.1021/jp9103933] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexey V. Titov
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Boyang Wang
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Kyaw Sint
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Petr Král
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607
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17
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Sint K, Wang B, Král P. Selective ion passage through functionalized graphene nanopores. J Am Chem Soc 2009; 130:16448-9. [PMID: 19554715 DOI: 10.1021/ja804409f] [Citation(s) in RCA: 307] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kyaw Sint
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, USA
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Franco M, Rosenbach, N, Ferreira GB, Guerra ACO, Kover WB, Turci CC, Mota CJA. Rearrangement, Nucleophilic Substitution, and Halogen Switch Reactions of Alkyl Halides over NaY Zeolite: Formation of the Bicyclobutonium Cation Inside the Zeolite Cavity. J Am Chem Soc 2008; 130:1592-600. [DOI: 10.1021/ja0742939] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Marcelo Franco
- Universidade Federal do Rio de Janeiro, Instituto de Química, Av Athos da Silveira Ramos 149, CT Bloco A, Cidade Universitária 21941-909, Rio de Janeiro, Brazil and Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rio de Janeiro, 20271-110, Brazil
| | - Nilton Rosenbach,
- Universidade Federal do Rio de Janeiro, Instituto de Química, Av Athos da Silveira Ramos 149, CT Bloco A, Cidade Universitária 21941-909, Rio de Janeiro, Brazil and Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rio de Janeiro, 20271-110, Brazil
| | - Glaucio B. Ferreira
- Universidade Federal do Rio de Janeiro, Instituto de Química, Av Athos da Silveira Ramos 149, CT Bloco A, Cidade Universitária 21941-909, Rio de Janeiro, Brazil and Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rio de Janeiro, 20271-110, Brazil
| | - Antônio C. O. Guerra
- Universidade Federal do Rio de Janeiro, Instituto de Química, Av Athos da Silveira Ramos 149, CT Bloco A, Cidade Universitária 21941-909, Rio de Janeiro, Brazil and Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rio de Janeiro, 20271-110, Brazil
| | - W. Bruce Kover
- Universidade Federal do Rio de Janeiro, Instituto de Química, Av Athos da Silveira Ramos 149, CT Bloco A, Cidade Universitária 21941-909, Rio de Janeiro, Brazil and Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rio de Janeiro, 20271-110, Brazil
| | - Cássia C. Turci
- Universidade Federal do Rio de Janeiro, Instituto de Química, Av Athos da Silveira Ramos 149, CT Bloco A, Cidade Universitária 21941-909, Rio de Janeiro, Brazil and Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rio de Janeiro, 20271-110, Brazil
| | - Claudio J. A. Mota
- Universidade Federal do Rio de Janeiro, Instituto de Química, Av Athos da Silveira Ramos 149, CT Bloco A, Cidade Universitária 21941-909, Rio de Janeiro, Brazil and Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Rio de Janeiro, 20271-110, Brazil
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Jordan E, Wilmer D, Koller H. Matrix-Einfluss auf die Bewegungskopplung und den langreichweitigen Transport von Kationen in Zeolithen. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200605049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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Jordan E, Wilmer D, Koller H. Matrix Effect on Motional Coupling and Long-Range Transport of Cations in Zeolites. Angew Chem Int Ed Engl 2007; 46:3359-62. [PMID: 17385780 DOI: 10.1002/anie.200605049] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Edgar Jordan
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität, Münster, Germany
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