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Froudas K, Vassaki M, Papadopoulos K, Tsangarakis C, Chen X, Shepard W, Fairen-Jimenez D, Tampaxis C, Charalambopoulou G, Steriotis TA, Trikalitis PN. Expanding the Reticular Chemistry Building Block Library toward Highly Connected Nets: Ultraporous MOFs Based on 18-Connected Ternary, Trigonal Prismatic Superpolyhedra. J Am Chem Soc 2024; 146:8961-8970. [PMID: 38428926 PMCID: PMC10996011 DOI: 10.1021/jacs.3c12679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/10/2024] [Accepted: 02/16/2024] [Indexed: 03/03/2024]
Abstract
The chemistry of metal-organic frameworks (MOFs) continues to expand rapidly, providing materials with diverse structures and properties. The reticular chemistry approach, where well-defined structural building blocks are combined together to form crystalline open framework solids, has greatly accelerated the discovery of new and important materials. However, its full potential toward the rational design of MOFs relies on the availability of highly connected building blocks because these greatly reduce the number of possible structures. Toward this, building blocks with connectivity greater than 12 are highly desirable but extremely rare. We report here the discovery of novel 18-connected, trigonal prismatic, ternary building blocks (tbb's) and their assembly into unique MOFs, denoted as Fe-tbb-MOF-x (x: 1, 2, 3), with hierarchical micro- and mesoporosity. The remarkable tbb is an 18-c supertrigonal prism, with three points of extension at each corner, consisting of triangular (3-c) and rectangular (4-c) carboxylate-based organic linkers and trigonal prismatic [Fe3(μ3-Ο)(-COO)6]+ clusters. The tbb's are linked together by an 18-c cluster made of 4-c ligands and a crystallographically distinct Fe3(μ3-Ο) trimer, forming overall a 3-D (3,4,4,6,6)-c five nodal net. The hierarchical, highly porous nature of Fe-tbb-MOF-x (x: 1, 2, 3) was confirmed by recording detailed sorption isotherms of Ar, CH4, and CO2 at 87, 112, and 195 K, respectively, revealing an ultrahigh BET area (4263-4847 m2 g-1) and pore volume (1.95-2.29 cm3 g-1). Because of the observed ultrahigh porosities, the H2 and CH4 storage properties of Fe-tbb-MOF-x were investigated, revealing well-balanced high gravimetric and volumetric deliverable capacities for cryoadsorptive H2 storage (11.6 wt %/41.4 g L-1, 77 K/100 bar-160 K/5 bar), as well as CH4 storage at near ambient temperatures (367 mg g-1/160 cm3 STP cm-3, 5-100 bar at 298 K), placing these materials among the top performing MOFs. The present work opens new directions to apply reticular chemistry for the construction of novel MOFs with tunable porosities based on contracted or expanded tbb analogues.
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Affiliation(s)
| | - Maria Vassaki
- Department
of Chemistry, University of Crete, Heraklion 71003, Greece
| | | | | | - Xu Chen
- Department
of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - William Shepard
- Synchrotron
SOLEIL-UR1, L’Orme des Merisiers, Saint-Aubin, BP 48, Gif-Sur-Yvette 91192, France
| | - David Fairen-Jimenez
- Department
of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Christos Tampaxis
- National
Center for Scientific Research “Demokritos”, Athens 15341, Greece
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2
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Loukopoulos E, Angeli GK, Tsangarakis C, Traka E, Froudas KG, Trikalitis PN. Reticular Synthesis of Flexible Rare-Earth Metal-Organic Frameworks: Control of Structural Dynamics and Sorption Properties Through Ligand Functionalization. Chemistry 2024; 30:e202302709. [PMID: 37823681 DOI: 10.1002/chem.202302709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 10/13/2023]
Abstract
An exciting direction in metal-organic frameworks involves the design and synthesis of flexible structures which can reversibly adapt their structure when triggered by external stimuli. Controlling the extent and nature of response in such solids is critical in order to develop custom dynamic materials for advanced applications. Towards this, it is highly important to expand the diversity of existing flexible MOFs, generating novel materials and gain an in-depth understanding of the associated dynamic phenomena, eventually unlocking key structure-property relationships. In the present work, we successfully utilized reticular chemistry for the construction of two novel series of highly crystalline, flexible rare-earth MOFs, RE-thc-MOF-2 and RE-teb-MOF-1. Extensive single-crystal to single-crystal structural analyses coupled with detailed gas and vapor sorption studies, shed light onto the unique responsive behavior. The development of these series is related to the reported RE-thc-MOF-1 solids which were found to display a unique continuous breathing and gas-trapping property. The synthesis of RE-thc-MOF-2 and RE-teb-MOF-1 materials represents an important milestone as they provide important insights into the key factors that control the responsive properties of this fascinating family of flexible materials and demonstrates that it is possible to control their dynamic behavior and the associated gas and vapor sorption properties.
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Affiliation(s)
- Edward Loukopoulos
- Department of Chemistry, University of Crete Voutes, 71003, Heraklion, Greece
| | - Giasemi K Angeli
- Department of Chemistry, University of Crete Voutes, 71003, Heraklion, Greece
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, Athens, 11635, Greece
| | | | - Eleni Traka
- Department of Chemistry, University of Crete Voutes, 71003, Heraklion, Greece
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3
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Azmy A, Zhao X, Angeli GK, Welton C, Raval P, Wojtas L, Zibouche N, Manjunatha Reddy GN, Trikalitis PN, Cai J, Spanopoulos I. One-Year Water-Stable and Porous Bi(III) Halide Semiconductor with Broad-Spectrum Antibacterial Performance. ACS Appl Mater Interfaces 2023; 15:42717-42729. [PMID: 37639320 DOI: 10.1021/acsami.3c06394] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Hybrid metal halide semiconductors are a unique family of materials with immense potential for numerous applications. For this to materialize, environmental stability and toxicity deficiencies must be simultaneously addressed. We report here a porous, visible light semiconductor, namely, (DHS)Bi2I8 (DHS = [2.2.2] cryptand), which consists of nontoxic, earth-abundant elements, and is water-stable for more than a year. Gas- and vapor-sorption studies revealed that it can selectively and reversibly adsorb H2O and D2O at room temperature (RT) while remaining impervious to N2 and CO2. Solid-state NMR measurements and density functional theory (DFT) calculations verified the incorporation of H2O and D2O in the molecular cages, validating the porous nature. In addition to porosity, the material exhibits broad band-edge light emission centered at 600 nm with a full width at half-maximum (fwhm) of 99 nm, which is maintained after 6 months of immersion in H2O. Moreover, (DHS)Bi2I8 exhibits bacteriocidal action against three Gram-positive and three Gram-negative bacteria, including antibiotic-resistant strains. This performance, coupled with the recorded water stability and porous nature, renders it suitable for a plethora of applications, from solid-state batteries to water purification and disinfection.
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Affiliation(s)
- Ali Azmy
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Xue Zhao
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Giasemi K Angeli
- Department of Chemistry, University of Crete, 71003 Heraklion, Greece
| | - Claire Welton
- Univ. Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Parth Raval
- Univ. Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Nourdine Zibouche
- Department of Chemistry, Lancaster University, Bailrigg, LancasterLA1 4YB, U.K
| | - G N Manjunatha Reddy
- Univ. Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | | | - Jianfeng Cai
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Ioannis Spanopoulos
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
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4
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Tsangarakis C, Azmy A, Tampaxis C, Zibouche N, Klontzas E, Tylianakis E, Froudakis GE, Steriotis T, Spanopoulos I, Trikalitis PN. Water-Stable etb-MOFs for Methane and Carbon Dioxide Storage. Inorg Chem 2023; 62:5496-5504. [PMID: 36976265 DOI: 10.1021/acs.inorgchem.2c04483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
We utilized the etb platform of MOFs for the synthesis of two new water-stable compounds based on amide functionalized trigonal tritopic organic linkers H3BTBTB (L1), H3BTCTB (L2) and Al3+ metal ions, namely, Al(L1) and Al(L2). The mesoporous Al(L1) material exhibits an impressive methane (CH4) uptake at high pressures and ambient temperature. The corresponding values of 192 cm3 (STP) cm-3, 0.254 g g-1 at 100 bar, and 298 K are among the highest reported for mesoporous MOFs, while the gravimetric and volumetric working capacities (between 80 bar and 5 bar) can be well compared to the best MOFs for CH4 storage. Furthermore, at 298 K and 50 bar, Al(L1) adsorbs 50 wt % (304 cm3 (STP) cm-3) CO2, values among the best recorded for CO2 storage using porous materials. To gain insight into the mechanism accounting for the resultant enhanced CH4 storage capacity, theoretical calculations were performed, revealing the presence of strong CH4 adsorption sites near the amide groups. Our work demonstrates that amide functionalized mesoporous etb-MOFs can be valuable for the design of versatile coordination compounds with CH4 and CO2 storage capacities comparable to ultra-high surface area microporous MOFs.
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Affiliation(s)
| | - Ali Azmy
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Christos Tampaxis
- National Center for Scientific Research "Demokritos", Patriarchou Grigoriou and Neapoleos 27, 15341 Athens, Greece
| | | | - Emmanuel Klontzas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 116 35 Athens, Greece
| | - Emmanuel Tylianakis
- Department of Materials Science and Technology, University of Crete, Heraklion 71003, Greece
| | | | - Theodore Steriotis
- National Center for Scientific Research "Demokritos", Patriarchou Grigoriou and Neapoleos 27, 15341 Athens, Greece
| | - Ioannis Spanopoulos
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
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5
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Azmy A, Li S, Angeli GK, Welton C, Raval P, Li M, Zibouche N, Wojtas L, Reddy GNM, Guo P, Trikalitis PN, Spanopoulos I. Porous and Water Stable 2D Hybrid Metal Halide with Broad Light Emission and Selective H 2 O Vapor Sorption. Angew Chem Int Ed Engl 2023; 62:e202218429. [PMID: 36656785 DOI: 10.1002/anie.202218429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/20/2023]
Abstract
In this work we report a strategy for generating porosity in hybrid metal halide materials using molecular cages that serve as both structure-directing agents and counter-cations. Reaction of the [2.2.2] cryptand (DHS) linker with PbII in acidic media gave rise to the first porous and water-stable 2D metal halide semiconductor (DHS)2 Pb5 Br14 . The corresponding material is stable in water for a year, while gas and vapor-sorption studies revealed that it can selectively and reversibly adsorb H2 O and D2 O at room temperature (RT). Solid-state NMR measurements and DFT calculations verified the incorporation of H2 O and D2 O in the organic linker cavities and shed light on their molecular configuration. In addition to porosity, the material exhibits broad light emission centered at 617 nm with a full width at half-maximum (FWHM) of 284 nm (0.96 eV). The recorded water stability is unparalleled for hybrid metal halide and perovskite materials, while the generation of porosity opens new pathways towards unexplored applications (e.g. solid-state batteries) for this class of hybrid semiconductors.
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Affiliation(s)
- Ali Azmy
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - Shunran Li
- Department of Chemical and Environmental Engineering, Yale University, 9 Hillhouse Avenue, New Haven, CT 06520, USA.,Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, CT 06516, USA
| | - Giasemi K Angeli
- Department of Chemistry, University of Crete, 71003, Heraklion, Greece
| | - Claire Welton
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Parth Raval
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Min Li
- West Campus Materials Characterization Core, Yale University, New Haven, CT 06520, USA
| | | | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA
| | - G N Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Peijun Guo
- Department of Chemical and Environmental Engineering, Yale University, 9 Hillhouse Avenue, New Haven, CT 06520, USA.,Energy Sciences Institute, Yale University, 810 West Campus Drive, West Haven, CT 06516, USA
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6
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Azmy A, Li S, Angeli GK, Welton C, Raval P, Li M, Zibouche N, Wojtas L, Reddy GNM, Guo P, Trikalitis PN, Spanopoulos I. Porous and Water Stable 2D Hybrid Metal Halide with Broad Light Emission and Selective H
2
O Vapor Sorption. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202301636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- Ali Azmy
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Shunran Li
- Department of Chemical and Environmental Engineering Yale University 9 Hillhouse Avenue New Haven CT 06520 USA
- Energy Sciences Institute Yale University 810 West Campus Drive West Haven CT 06516 USA
| | | | - Claire Welton
- University of Lille, CNRS, Centrale Lille Institut Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Parth Raval
- University of Lille, CNRS, Centrale Lille Institut Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Min Li
- West Campus Materials Characterization Core Yale University New Haven CT 06520 USA
| | | | - Lukasz Wojtas
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - G. N. Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille Institut Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Peijun Guo
- Department of Chemical and Environmental Engineering Yale University 9 Hillhouse Avenue New Haven CT 06520 USA
- Energy Sciences Institute Yale University 810 West Campus Drive West Haven CT 06516 USA
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7
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Azmy A, Li S, Angeli GK, Welton C, Raval P, Li M, Zibouche N, Wojtas L, Reddy GNM, Guo P, Trikalitis PN, Spanopoulos I. Porous and Water Stable 2D Hybrid Metal Halide with Broad Light Emission and Selective H
2
O Vapor Sorption. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/anie.202301636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- Ali Azmy
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Shunran Li
- Department of Chemical and Environmental Engineering Yale University 9 Hillhouse Avenue New Haven CT 06520 USA
- Energy Sciences Institute Yale University 810 West Campus Drive West Haven CT 06516 USA
| | | | - Claire Welton
- University of Lille, CNRS, Centrale Lille Institut Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Parth Raval
- University of Lille, CNRS, Centrale Lille Institut Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Min Li
- West Campus Materials Characterization Core Yale University New Haven CT 06520 USA
| | | | - Lukasz Wojtas
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - G. N. Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille Institut Univ. Artois, UMR8181-UCCS-Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Peijun Guo
- Department of Chemical and Environmental Engineering Yale University 9 Hillhouse Avenue New Haven CT 06520 USA
- Energy Sciences Institute Yale University 810 West Campus Drive West Haven CT 06516 USA
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8
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Azmy A, Li S, Angeli GK, Welton C, Raval P, Li M, Zibouche N, Wojtas L, Reddy GNM, Guo P, Trikalitis PN, Spanopoulos I. Porous and Water Stable 2D Hybrid Metal Halide with Broad Light Emission and Selective H2O Vapor Sorption. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202218429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ali Azmy
- University of South Florida College of Arts & Sciences Chemistry UNITED STATES
| | - Shunran Li
- Yale University 2Department of Chemical and Environmental Engineering UNITED STATES
| | - Giasemi K. Angeli
- University of Crete Heraklion Campus: Panepistemio Kretes Panepistemioupole Bouton Chemistry GREECE
| | - Claire Welton
- University of Lille: Universite de Lille CNRS FRANCE
| | - Parth Raval
- University of Lille: Universite de Lille CNRS FRANCE
| | - Min Li
- Yale University Yale West Campus Materials Characterization Core UNITED STATES
| | | | - Lukasz Wojtas
- University of South Florida College of Arts & Sciences Chemistry UNITED STATES
| | | | - Peijun Guo
- Yale University 2Department of Chemical and Environmental Engineering UNITED STATES
| | - Pantelis N. Trikalitis
- University of Crete Department of Chemistry: Panepistemio Kretes Tmema Chemeias Chemistry GREECE
| | - Ioannis Spanopoulos
- University of South Florida Chemistry 4202 E. Fowler Avenue 33620 Tampa UNITED STATES
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Loukopoulos E, Angeli GK, Kouvidis K, Tsangarakis C, Trikalitis PN. Accessing 14-Connected Nets: Continuous Breathing, Hydrophobic Rare-Earth Metal Organic Frameworks Based on 14-c Hexanuclear Clusters with High Affinity for Non-Polar Vapors. ACS Appl Mater Interfaces 2022; 14:22242-22251. [PMID: 35535746 DOI: 10.1021/acsami.2c05961] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Highly connected metal organic frameworks (MOFs) in which at least one building block has connectivity higher than twelve are very rare and much desirable. We report here the first examples of isostructural 14-connected MOFs, RE-frt-MOF-1, constructed from the assembly of 14-c hexanuclear rare-earth clusters, [RE6(μ3-X)8(COO)12]2- (RE: Y3+, Tb3+, Dy3+, Ho3+, Er3+, Yb3+ and X: OH-/F-) with a tritopic carboxylate-based organic linker. This linker serves as a 3-c and 4-c organic node resulting in the formation of a unique, trinodal (3,4,14)-c framework. RE-frt-MOF-1 are stable in air and alkaline aqueous solutions and show an intriguingly continuous, reversible breathing behavior, between a wide and a narrow-pore phase, upon guest removal. Crystallinity is retained during breathing, and single-crystal X-ray diffraction shed light into the associated structural transformation. Vapor sorption studies performed on Y-frt-MOF-1 revealed a high affinity for non-polar vapors such as n-hexane, cyclohexane, and benzene, displaying type I isotherms with high uptake at low relative pressures (<10-3 p/p0), associated with the hydrophobic nature of the 1D channels and also with their rhombic shape. In contrast, polar vapors such as acetonitrile and ethanol show type V isotherms due to favorable vapor-vapor interactions. Notably these vapors, except cyclohexane, trigger the transition from the narrow to the wide pore phase, accompanied by a remarkable increase in uptake, reaching 70.6, 109, 100.4, and 87.7% for n-hexane, benzene, acetonitrile, and ethanol, respectively.
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Affiliation(s)
- Edward Loukopoulos
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | - Giasemi K Angeli
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
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10
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Angeli GK, Loukopoulos E, Kouvidis K, Bosveli A, Tsangarakis C, Tylianakis E, Froudakis G, Trikalitis PN. Continuous Breathing Rare-Earth MOFs Based on Hexanuclear Clusters with Gas Trapping Properties. J Am Chem Soc 2021; 143:10250-10260. [PMID: 34185543 DOI: 10.1021/jacs.1c03762] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Guest responsive porous materials represent an important and fascinating class of multifunctional solids that have attracted considerable attention in recent years. An understanding of how these structures form is essential toward their rational design, which is a prerequisite for the development of tailor-made materials for advanced applications. We herein report a novel series of stable rare-earth (RE) MOFs that show a rare continuous breathing behavior and an unprecedented gas-trapping property. We used an asymmetric 4-c tetratopic carboxylate-based organic ligand that is capable of affording highly crystalline materials upon controlled reaction with RE cations. These MOFs, denoted as RE-thc-MOF-1 (RE: Y3+, Sm3+, Eu3+, Tb3+, Dy3+, Ho3+, and Er3+), feature hexanuclear RE6 clusters that display a highly unusual connectivity and serve as unique 8-c hemi-cuboctahedral secondary building block, resulting in a new (3,3,8)-c thc topology. Extensive single-crystal to single-crystal structural analyses coupled with detailed gas (N2, Ar, Kr, CO2, CH4, and Xe) and vapor (EtOH, CH3CN, C6H6, and C6H14) sorption studies, supported by accurate theoretical calculations, shed light onto the unique swelling behavior. The results reveal a synergistic action involving steric effects, associated with coordinated solvent molecules and 2-fluorobenzoate (2-FBA) nonbridging ligands, as well as cation-framework electrostatic interactions. We were able to probe the individual role of the coordinated solvent molecules and 2-FBA ligands and found that both cooperatively control the gas-breathing and -trapping properties, while 2-FBA controls the vapor adsorption selectivity. These findings provide unique opportunities toward the design and development of tunable RE-based flexible MOFs with tailor-made properties.
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Affiliation(s)
- Giasemi K Angeli
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | - Edward Loukopoulos
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | | | - Artemis Bosveli
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | | | - Emmanuel Tylianakis
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | - George Froudakis
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
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11
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Thomou E, Sakavitsi V, Angeli GK, Spyrou K, Froudas KG, Diamanti EK, Romanos GE, Karanikolos GN, Trikalitis PN, Gournis D, Rudolf P. A diamino-functionalized silsesquioxane pillared graphene oxide for CO 2 capture. RSC Adv 2021; 11:13743-13750. [PMID: 35423909 PMCID: PMC8697626 DOI: 10.1039/d1ra00777g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/31/2021] [Indexed: 01/11/2023] Open
Abstract
In the race for viable solutions that could slow down carbon emissions and help in meeting the climate change targets a lot of effort is being made towards the development of suitable CO2 adsorbents with high surface area, tunable pore size and surface functionalities that could enhance selective adsorption. Here, we explored the use of silsesquioxane pillared graphene oxide for CO2 capture; we modified silsesquioxane loading and processing parameters in order to obtain pillared structures with nanopores of the tailored size and surface properties to maximize the CO2 sorption capacity. Powder X-ray diffraction, XPS and FTIR spectroscopies, thermal analysis (DTA/TGA), surface area measurements and CO2 adsorption measurements were employed to characterize the materials and evaluate their performance. Through this optimisation process, materials with good CO2 storage capacities of up to 1.7/1.5 mmol g−1 at 273 K/298 K in atmospheric pressure, were achieved. Study of the CO2 uptake performance of silsesquioxane pillared graphene oxide prepared with different pillar loading and way of drying.![]()
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Affiliation(s)
- Eleni Thomou
- Department of Materials Science and Engineering
- University of Ioannina
- Ioannina 45110
- Greece
- Zernike Institute for Advanced Materials
| | - Viktoria Sakavitsi
- Department of Materials Science and Engineering
- University of Ioannina
- Ioannina 45110
- Greece
| | | | - Konstantinos Spyrou
- Department of Materials Science and Engineering
- University of Ioannina
- Ioannina 45110
- Greece
| | | | - Evmorfia K. Diamanti
- Department of Materials Science and Engineering
- University of Ioannina
- Ioannina 45110
- Greece
| | - George E. Romanos
- Institute of Nanoscience and Nanotechnology
- N.C.S.R. Demokritos
- Ag. Paraskevi Attikis
- Greece
| | - Georgios N. Karanikolos
- Department of Chemical Engineering
- Khalifa University
- Abu Dhabi
- United Arab Emirates
- Research and Innovation Center on CO2 and H2 (RICH)
| | | | - Dimitrios Gournis
- Department of Materials Science and Engineering
- University of Ioannina
- Ioannina 45110
- Greece
| | - Petra Rudolf
- Zernike Institute for Advanced Materials
- University of Groningen
- Groningen
- The Netherlands
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12
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Angeli GK, Batzavali D, Mavronasou K, Tsangarakis C, Stuerzer T, Ott H, Trikalitis PN. Remarkable Structural Diversity between Zr/Hf and Rare-Earth MOFs via Ligand Functionalization and the Discovery of Unique (4, 8)-c and (4, 12)-connected Frameworks. J Am Chem Soc 2020; 142:15986-15994. [PMID: 32845629 DOI: 10.1021/jacs.0c07081] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ligand modification in MOFs provides great opportunities not only for the development of functional materials with new or enhanced properties but also for the discovery of novel structures. We report here that a sulfone-functionalized tetrahedral carboxylate-based ligand is capable of directing the formation of new and fascinating MOFs when combined with Zr4+/Hf4+ and rare-earth metal cations (RE) with improved gas-sorption properties. In particular, the resulting M-flu-SO2 (M: Zr, Hf) materials display a new type of the augmented flu-a net, which is different as compared to the flu-a framework formed by the nonfunctionalized tetrahedral ligand. In terms of properties, a remarkable increase in the CO2 uptake is observed that reaches 76.6% and 61.6% at 273 and 298 K and 1 bar, respectively. When combined with REs, the sulfone-modified linker affords novel MOFs, RE-hpt-MOF-1 (RE: Y3+, Ho3+, Er3+), which displays a fascinating (4, 12)-coordinated hpt net, based on nonanuclear [RE9(μ3-Ο)2(μ3-ΟΗ)12(-COO)12] clusters that serve as hexagonal prismatic building blocks. In the absence of the sulfone groups, we discovered that the tetrahedral linker directs the formation of new RE-MOFs, RE-ken-MOF-1 (RE: Y3+, Ho3+, Er3+, Yb3+), that display an unprecedented (4, 8)-coordinated ken net based on nonanuclear RE9-clusters, to serve as bicapped trigonal prismatic building units. Successful activation of the representative member Y-ken-MOF-1 reveals a high BET surface area and total pore volume reaching 2621 m2 g-1 and 0.95 cm3 g-1, respectively. These values are the highest among all RE MOFs based on nonanuclear clusters and some of the highest in the entire RE family of MOFs. The present work uncovers a unique structural diversity existing between Zr/Hf and RE-based MOFs that demonstrates the crucial role of linker design. In addition, the discovery of the new RE-hpt-MOF-1 and RE-ken-MOF-1 families of MOFs highlights the great opportunities existing in RE-MOFs in terms of structural diversity that could lead to novel materials with new properties.
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Affiliation(s)
- Giasemi K Angeli
- Department of Chemistry, University of Crete, Voutes, Heraklion 71003, Greece
| | - Danai Batzavali
- Department of Chemistry, University of Crete, Voutes, Heraklion 71003, Greece
| | - Katerina Mavronasou
- Department of Chemistry, University of Crete, Voutes, Heraklion 71003, Greece
| | | | - Tobias Stuerzer
- Bruker AXS GmbH, Ostliche Rheinbruckenstrasse 49, Karlsruhe D-76187, Germany
| | - Holger Ott
- Bruker AXS GmbH, Ostliche Rheinbruckenstrasse 49, Karlsruhe D-76187, Germany
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13
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Kourtellaris A, Moushi EE, Spanopoulos I, Trikalitis PN, Pissas M, Papaefstathiou GS, Sanakis Y, Tasiopoulos AJ. Front Cover: A Microporous Co(II)‐Based 3‐D Metal Organic Framework Built from Magnetic Infinite Rod‐Shaped Secondary Building Units (Eur. J. Inorg. Chem. 38/2019). Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Andreas Kourtellaris
- Department of Chemistry University of Cyprus 1678 Nicosia Cyprus
- Department of Life Sciences School of Sciences European University of Cyprus 1516 Nicosia Cyprus
| | - Eleni E. Moushi
- Department of Life Sciences School of Sciences European University of Cyprus 1516 Nicosia Cyprus
| | | | | | - Michael Pissas
- Institute of Nanoscience and Nanotechnology NCSR “Demokritos” Aghia Paraskevi 15310 Athens Greece
| | - Giannis S. Papaefstathiou
- Laboratory of Inorganic Chemistry National and Kapodistrian University of Athens Panepistimiopolis Zografou 157 71 Athens Greece
| | - Yiannis Sanakis
- Institute of Nanoscience and Nanotechnology NCSR “Demokritos” Aghia Paraskevi 15310 Athens Greece
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14
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Kourtellaris A, Moushi EE, Spanopoulos I, Trikalitis PN, Pissas M, Papaefstathiou GS, Sanakis Y, Tasiopoulos AJ. A Microporous Co(II)‐Based 3‐D Metal Organic Framework Built from Magnetic Infinite Rod‐Shaped Secondary Building Units. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Andreas Kourtellaris
- Department of Chemistry University of Cyprus 1678 Nicosia Cyprus
- Department of Life Sciences School of Sciences European University of Cyprus 1516 Nicosia Cyprus
| | - Eleni E. Moushi
- Department of Life Sciences School of Sciences European University of Cyprus 1516 Nicosia Cyprus
| | | | | | - Michael Pissas
- Institute of Nanoscience and Nanotechnology NCSR “Demokritos” Aghia Paraskevi 15310 Athens Greece
| | - Giannis S. Papaefstathiou
- Laboratory of Inorganic Chemistry National and Kapodistrian University of Athens Panepistimiopolis Zografou 157 71 Athens Greece
| | - Yiannis Sanakis
- Institute of Nanoscience and Nanotechnology NCSR “Demokritos” Aghia Paraskevi 15310 Athens Greece
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15
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Kourtellaris A, Moushi EE, Spanopoulos I, Trikalitis PN, Pissas M, Papaefstathiou GS, Sanakis Y, Tasiopoulos AJ. A Microporous Co(II)‐Based 3‐D Metal Organic Framework Built from Magnetic Infinite Rod‐Shaped Secondary Building Units. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Andreas Kourtellaris
- Department of Chemistry University of Cyprus 1678 Nicosia Cyprus
- Department of Life Sciences School of Sciences European University of Cyprus 1516 Nicosia Cyprus
| | - Eleni E. Moushi
- Department of Life Sciences School of Sciences European University of Cyprus 1516 Nicosia Cyprus
| | | | | | - Michael Pissas
- Institute of Nanoscience and Nanotechnology NCSR “Demokritos” Aghia Paraskevi 15310 Athens Greece
| | - Giannis S. Papaefstathiou
- Laboratory of Inorganic Chemistry National and Kapodistrian University of Athens Panepistimiopolis Zografou 157 71 Athens Greece
| | - Yiannis Sanakis
- Institute of Nanoscience and Nanotechnology NCSR “Demokritos” Aghia Paraskevi 15310 Athens Greece
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16
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Bratsos I, Tampaxis C, Spanopoulos I, Demitri N, Charalambopoulou G, Vourloumis D, Steriotis TA, Trikalitis PN. Heterometallic In(III)–Pd(II) Porous Metal–Organic Framework with Square-Octahedron Topology Displaying High CO2 Uptake and Selectivity toward CH4 and N2. Inorg Chem 2018; 57:7244-7251. [DOI: 10.1021/acs.inorgchem.8b00910] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ioannis Bratsos
- National Center for Scientific Research “Demokritos”, Patriarchou Gregoriou E’ & Neapoleos 27, Athens 15310, Greece
| | - Christos Tampaxis
- National Center for Scientific Research “Demokritos”, Patriarchou Gregoriou E’ & Neapoleos 27, Athens 15310, Greece
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | - Ioannis Spanopoulos
- Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece
| | - Nicola Demitri
- Elettra − Sincrotrone Trieste, S. S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste Italy
| | - Georgia Charalambopoulou
- National Center for Scientific Research “Demokritos”, Patriarchou Gregoriou E’ & Neapoleos 27, Athens 15310, Greece
| | - Dionisios Vourloumis
- National Center for Scientific Research “Demokritos”, Patriarchou Gregoriou E’ & Neapoleos 27, Athens 15310, Greece
| | - Theodore A. Steriotis
- National Center for Scientific Research “Demokritos”, Patriarchou Gregoriou E’ & Neapoleos 27, Athens 15310, Greece
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17
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Angeli GK, Sartsidou C, Vlachaki S, Spanopoulos I, Tsangarakis C, Kourtellaris A, Klontzas E, Froudakis GE, Tasiopoulos A, Trikalitis PN. Reticular Chemistry and the Discovery of a New Family of Rare Earth (4, 8)-Connected Metal-Organic Frameworks with csq Topology Based on RE 4(μ 3-O) 2(COO) 8 Clusters. ACS Appl Mater Interfaces 2017; 9:44560-44566. [PMID: 29215862 DOI: 10.1021/acsami.7b16380] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In recent years, the design and discovery of new metal-organic framework (MOF) platforms with distinct structural features and tunable chemical composition has remarkably enhanced by applying reticular chemistry rules and the molecular building block (MBB) approach. We targeted the synthesis of new rare earth (RE)-MOF platforms based on a rectangular-shaped 4-c linker, acting as a rigid organic MBB. Accordingly, we designed and synthesized the organic ligand 1,2,4,5-tetrakis(4-carboxyphenyl)-3,6-dimethyl-benzene (H4L), in which the two methyl groups attached to the central phenyl ring lock the four peripheral carboxyphenyl groups to an orthogonal/vertical position. We report here a new family of RE-MOFs featuring the novel inorganic building unit, RE4(μ3-O)2 (RE: Y3+, Tb3+, Dy3+, Ho3+, Er3+, and Yb3+), with planar D2h symmetry. The rigid 4-c linker, H4L, directs the in situ assembly of the unique 8-c RE4(μ3-O)2(COO)8 cluster, resulting in the formation of the first (4, 8)-c RE-MOFs with csq topology, RE-csq-MOF-1. The structures of the yttrium (Y-csq-MOF-1) and holmium (Ho-csq-MOF-1) analogues were determined by single-crystal X-ray diffraction analysis. Y-csq-MOF-1 was successfully activated and tested for Xe/Kr separation. The results show that Y-csq-MOF-1 has high isosteric heat of adsorption for Xe (33.8 kJ mol-1), with high Xe/Kr selectivity (IAST 12.1, Henry 12.9) and good Xe uptake (1.94 mmol g-1 at 298 K and 1 bar), placing this MOF among the top-performing adsorbents for Xe/Kr separation.
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Affiliation(s)
- Giasemi K Angeli
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
| | - Christina Sartsidou
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
| | - Styliani Vlachaki
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
| | - Ioannis Spanopoulos
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
| | | | | | - Emmanuel Klontzas
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
| | - George E Froudakis
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
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18
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Subrahmanyam KS, Spanopoulos I, Chun J, Riley BJ, Thallapally PK, Trikalitis PN, Kanatzidis MG. Chalcogenide Aerogels as Sorbents for Noble Gases (Xe, Kr). ACS Appl Mater Interfaces 2017; 9:33389-33394. [PMID: 28157282 DOI: 10.1021/acsami.6b15896] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
High-surface-area molybdenum sulfide (MoSx) and antimony sulfide (SbSx) chalcogels were studied for Xe/Kr gas separation. The intrinsic soft Lewis basic character of the chalcogel framework is a unique property among the large family of porous materials and lends itself to a potential new approach toward the selective separation of Xe over Kr. Among these chalcogels, MoSx shows the highest Xe and Kr uptake, reaching 0.69 mmol g-1 (1.05 mmol cm-3) and 0.28 mmol g-1 (0.42 mmol cm-3) respectively, at 273 K and 1 bar. The corresponding isosteric heat of adsorption at zero coverage (Qst0) is 22.8 and 18.6 kJ mol-1 and both are the highest among the selected chalcogels. The IAST (10:90) Xe/Kr selectivity at 273 K for MoSx is 6.0, whereas for SbSx chalcogels, it varies in the range 2.0-2.8. The higher formal charge of molybdenum, Mo4+, in MoSx versus that of antimony, Sb3+, in SbSx coupled with its larger atomic size could induce higher polarizability in the MoSx framework and therefore higher Xe/Kr selectivity.
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Affiliation(s)
- Kota S Subrahmanyam
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - Ioannis Spanopoulos
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
| | - Jaehun Chun
- Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| | - Brian J Riley
- Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| | | | | | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
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19
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Arachchige IU, Armatas GS, Biswas K, Subrahmanyam KS, Latturner S, Malliakas CD, Manos MJ, Oh Y, Polychronopoulou K, P Poudeu PF, Trikalitis PN, Zhang Q, Zhao LD, Peter SC. Mercouri G. Kanatzidis: Excellence and Innovations in Inorganic and Solid-State Chemistry. Inorg Chem 2017; 56:7582-7597. [PMID: 28654276 DOI: 10.1021/acs.inorgchem.7b00933] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Over the last 3-4 decades, solid-state chemistry has emerged as the forefront of materials design and development. The field has revolutionized into a multidisciplinary subject and matured with a scope of new synthetic strategies, new challenges, and opportunities. Understanding the structure is very crucial in the design of appropriate materials for desired applications. Professor Mercouri G. Kanatzidis has encountered both challenges and opportunities during the course of the discovery of many novel materials. Throughout his scientific career, Mercouri and his group discovered several inorganic compounds and pioneered structure-property relationships. We, a few Ph.D. and postdoctoral students, celebrate his 60th birthday by providing a Viewpoint summarizing his contributions to inorganic solid-state chemistry. The topics discussed here are of significant interest to various scientific communities ranging from condensed matter to green energy production.
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Affiliation(s)
- Indika U Arachchige
- Department of Chemistry, Virginia Commonwealth University , Richmond, Virginia 23284-2006, United States
| | - Gerasimos S Armatas
- Department of Materials Science and Technology, University of Crete, Vassilika Vouton , Heraklion 71003, Greece
| | - Kanishka Biswas
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) , Jakkur P.O., Bangalore 560064, India
| | - Kota S Subrahmanyam
- Centre for Nano and Soft Matter Sciences , Jalahalli, Bangalore 560013, India
| | - Susan Latturner
- Department of Chemistry and Biochemistry, Florida State University , Tallahassee, Florida 32308, United States
| | - Christos D Malliakas
- Department of Chemistry, Northwestern University , 2145 North Sheridan Road, Evanston, Illinois 60208, United States
| | - Manolis J Manos
- Department of Chemistry, University of Ioannina , GR-45110 Ioannina, Greece
| | - Youngtak Oh
- Center for Environment, Health, and Welfare Research, Korea Institute of Science and Technology , Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Kyriaki Polychronopoulou
- Department of Mechanical Engineering, Khalifa University of Science, Technology, and Research , 127788 Abu Dhabi, United Arab Emirates
| | - Pierre F P Poudeu
- Materials Science and Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Pantelis N Trikalitis
- Department of Chemistry, University of Crete , Voutes Campus, 71003 Heraklion, Greece
| | - Qichun Zhang
- School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798, Singapore
| | - Li-Dong Zhao
- School of Material Science and Engineering, Beihang University , Beijing 10091, China
| | - Sebastian C Peter
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) , Jakkur P.O., Bangalore 560064, India
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20
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Chernikova V, Shekhah O, Spanopoulos I, Trikalitis PN, Eddaoudi M. Liquid phase epitaxial growth of heterostructured hierarchical MOF thin films. Chem Commun (Camb) 2017; 53:6191-6194. [DOI: 10.1039/c7cc03270f] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through combining the supermolecular building layer (SBL) approach for designing MOFs with the liquid phase epitaxy growth method, we demonstrate that it is possible to precisely control the epitaxial growth of MOF-on-MOF thin films, for ordered hierarchical tbo-type structures.
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Affiliation(s)
- Valeriya Chernikova
- Functional Materials Design
- Discovery and Development Research Group (FMD3)
- Advanced Membranes and Porous Materials Center (AMPMC)
- Division of Physical Sciences and Engineering (PSE)
- King Abdullah University of Science and Technology (KAUST)
| | - Osama Shekhah
- Functional Materials Design
- Discovery and Development Research Group (FMD3)
- Advanced Membranes and Porous Materials Center (AMPMC)
- Division of Physical Sciences and Engineering (PSE)
- King Abdullah University of Science and Technology (KAUST)
| | | | | | - Mohamed Eddaoudi
- Functional Materials Design
- Discovery and Development Research Group (FMD3)
- Advanced Membranes and Porous Materials Center (AMPMC)
- Division of Physical Sciences and Engineering (PSE)
- King Abdullah University of Science and Technology (KAUST)
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21
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Spanopoulos I, Tsangarakis C, Barnett S, Nowell H, Klontzas E, Froudakis GE, Trikalitis PN. Directed assembly of a high surface area 2D metal–organic framework displaying the augmented “kagomé dual” (kgd-a) layered topology with high H2and CO2uptake. Inorg Chem Front 2017. [DOI: 10.1039/c6qi00547k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A high surface area layered MOF withkgd-atopology, based on a nanosized and highly aromatic hexagonal linker, shows high H2and CO2uptake.
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Affiliation(s)
| | | | - Sarah Barnett
- Diamond Light Source
- Harwell Science and Innovation Campus
- Oxfordshire OX11 0DE
- UK
| | - Harriot Nowell
- Diamond Light Source
- Harwell Science and Innovation Campus
- Oxfordshire OX11 0DE
- UK
| | - Emmanuel Klontzas
- Department of Chemistry
- University of Crete
- Voutes 71003 Heraklion
- Greece
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Kontos AG, Kaltzoglou A, Siranidi E, Palles D, Angeli GK, Arfanis MK, Psycharis V, Raptis YS, Kamitsos EI, Trikalitis PN, Stoumpos CC, Kanatzidis MG, Falaras P. Structural Stability, Vibrational Properties, and Photoluminescence in CsSnI 3 Perovskite upon the Addition of SnF 2. Inorg Chem 2016; 56:84-91. [PMID: 28043139 DOI: 10.1021/acs.inorgchem.6b02318] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The CsSnI3 perovskite and the corresponding SnF2-containing material with nominal composition CsSnI2.95F0.05 were synthesized by solid-state reactions and structurally characterized by powder X-ray diffraction. Both materials undergo rapid phase transformation upon exposure to air from the black orthorhombic phase (B-γ-CsSnI3) to the yellow orthorhombic phase (Y-CsSnI3), followed by irreversible oxidation into Cs2SnI6 within several hours. The phase transition occurs at a significantly lower rate in the SnF2-containing material rather than in the pure perovskite. The high hole-carrier concentration of the materials prohibits the detection of Raman signals for B-γ-CsSnI3 and induces a very strong plasmonic reflectance in the far-IR. In contrast, far-IR phonon bands and a rich Raman spectrum are observed for the Y-CsSnI3 modification below 140 cm-1 with weak frequency shift gradients versus temperatures between -95 and +170 °C. Above 170 °C, the signal is lost due to B-α-CsSnI3 re-formation. The photoluminescence spectra exhibit residual blue shifts and broadening as a sign of structural transformation initiation.
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Affiliation(s)
- Athanassios G Kontos
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos , Athens 15310, Greece
| | - Andreas Kaltzoglou
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos , Athens 15310, Greece
| | - Eirini Siranidi
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos , Athens 15310, Greece
| | - Dimitrios Palles
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation , Athens 11635, Greece
| | - Giasemi K Angeli
- Department of Chemistry, University of Crete , Heraklion 71003, Greece
| | - Michalis K Arfanis
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos , Athens 15310, Greece
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos , Athens 15310, Greece
| | - Yannis S Raptis
- Faculty of Applied Sciences, National Technical University of Athens , Athens 15780, Greece
| | - Efstratios I Kamitsos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation , Athens 11635, Greece
| | | | | | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - Polycarpos Falaras
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos , Athens 15310, Greece
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Alezi D, Spanopoulos I, Tsangarakis C, Shkurenko A, Adil K, Belmabkhout Y, O Keeffe M, Eddaoudi M, Trikalitis PN. Reticular Chemistry at Its Best: Directed Assembly of Hexagonal Building Units into the Awaited Metal-Organic Framework with the Intricate Polybenzene Topology, pbz-MOF. J Am Chem Soc 2016; 138:12767-12770. [PMID: 27615117 DOI: 10.1021/jacs.6b08176] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ability to direct the assembly of hexagonal building units offers great prospective to construct the awaited and looked-for hypothetical polybenzene (pbz) or "cubic graphite" structure, described 70 years ago. Here, we demonstrate the successful use of reticular chemistry as an appropriate strategy for the design and deliberate construction of a zirconium-based metal-organic framework (MOF) with the intricate pbz underlying net topology. The judicious selection of the perquisite hexagonal building units, six connected organic and inorganic building blocks, allowed the formation of the pbz-MOF-1, the first example of a Zr(IV)-based MOF with pbz topology. Prominently, pbz-MOF-1 is highly porous, with associated pore size and pore volume of 13 Å and 0.99 cm3 g-1, respectively, and offers high gravimetric and volumetric methane storage capacities (0.23 g g-1 and 210.4 cm3 (STP) cm-3 at 80 bar). Notably, the pbz-MOF-1 pore system permits the attainment of one of the highest CH4 adsorbed phase density enhancements at high pressures (0.15 and 0.21 g cm-3 at 35 and 65 bar, respectively) as compared to benchmark microporous MOFs.
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Affiliation(s)
- Dalal Alezi
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ioannis Spanopoulos
- Department of Chemistry, University of Crete , Voutes 71003 Heraklion, Greece
| | | | - Aleksander Shkurenko
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Karim Adil
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Youssef Belmabkhout
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Michael O Keeffe
- School of Molecular Sciences, Arizona State University , Tempe, Arizona 85287, United States
| | - Mohamed Eddaoudi
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
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24
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Spanopoulos I, Tsangarakis C, Klontzas E, Tylianakis E, Froudakis G, Adil K, Belmabkhout Y, Eddaoudi M, Trikalitis PN. Reticular Synthesis of HKUST-like tbo-MOFs with Enhanced CH4 Storage. J Am Chem Soc 2016; 138:1568-74. [DOI: 10.1021/jacs.5b11079] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | | | | | | | - Karim Adil
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), P.O. Box 4700, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Youssef Belmabkhout
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), P.O. Box 4700, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mohamed Eddaoudi
- Functional Materials Design, Discovery & Development (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), P.O. Box 4700, Thuwal 23955-6900, Kingdom of Saudi Arabia
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25
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Kourtellaris A, Moushi EE, Spanopoulos I, Tampaxis C, Charalambopoulou G, Steriotis TA, Papaefstathiou GS, Trikalitis PN, Tasiopoulos AJ. A microporous Cu2+MOF based on a pyridyl isophthalic acid Schiff base ligand with high CO2uptake. Inorg Chem Front 2016. [DOI: 10.1039/c6qi00273k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new microporous Cu2+MOF is reported containing a pyridyl-isophthalic acid Schiff base ligand which exhibits a significant BET area and high CO2sorptbion capacity.
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Affiliation(s)
| | - Eleni E. Moushi
- Department of Chemistry
- University of Cyprus
- 1678 Nicosia
- Cyprus
| | | | - Christos Tampaxis
- Department of Chemistry
- University of Crete
- Heraklion
- Greece
- National Center for Scientific Research Demokritos
| | | | | | - Giannis S. Papaefstathiou
- Laboratory of Inorganic Chemistry
- Department of Chemistry
- National and Kapodistrian University of Athens
- Greece
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26
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Alezi D, Belmabkhout Y, Suyetin M, Bhatt PM, Weseliński ŁJ, Solovyeva V, Adil K, Spanopoulos I, Trikalitis PN, Emwas AH, Eddaoudi M. MOF Crystal Chemistry Paving the Way to Gas Storage Needs: Aluminum-Based soc-MOF for CH4, O2, and CO2 Storage. J Am Chem Soc 2015; 137:13308-18. [PMID: 26364990 PMCID: PMC4616230 DOI: 10.1021/jacs.5b07053] [Citation(s) in RCA: 393] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
![]()
The molecular building block approach
was employed effectively
to construct a series of novel isoreticular, highly porous and stable,
aluminum-based metal–organic frameworks with soc topology. From this platform, three compounds were experimentally
isolated and fully characterized: namely, the parent Al-soc-MOF-1 and its naphthalene and anthracene analogues. Al-soc-MOF-1 exhibits outstanding gravimetric methane uptake (total and
working capacity). It is shown experimentally, for the first time,
that the Al-soc-MOF platform can address the challenging
Department of Energy dual target of 0.5 g/g (gravimetric) and 264
cm3 (STP)/cm3 (volumetric) methane storage.
Furthermore, Al-soc-MOF exhibited the highest total gravimetric
and volumetric uptake for carbon dioxide and the utmost total and
deliverable uptake for oxygen at relatively high pressures among all
microporous MOFs. In order to correlate the MOF pore structure and
functionality to the gas storage properties, to better understand
the structure–property relationship, we performed a molecular
simulation study and evaluated the methane storage performance of
the Al-soc-MOF platform using diverse organic linkers.
It was found that shortening the parent Al-soc-MOF-1
linker resulted in a noticeable enhancement in the working volumetric
capacity at specific temperatures and pressures with amply conserved
gravimetric uptake/working capacity. In contrast, further expansion
of the organic linker (branches and/or core) led to isostructural
Al-soc-MOFs with enhanced gravimetric uptake but noticeably
lower volumetric capacity. The collective experimental and simulation
studies indicated that the parent Al-soc-MOF-1 exhibits
the best compromise between the volumetric and gravimetric total and
working uptakes under a wide range of pressure and temperature conditions.
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Affiliation(s)
| | | | | | | | | | | | | | - Ioannis Spanopoulos
- Department of Chemistry, University of Crete , Voutes, 71003 Heraklion, Greece
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27
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Tsikalas GK, Lazarou P, Klontzas E, Pergantis SA, Spanopoulos I, Trikalitis PN, Froudakis GE, Katerinopoulos HE. A “turn-on”–turning-to-ratiometric sensor for zinc(ii) ions in aqueous media. RSC Adv 2014. [DOI: 10.1039/c3ra45796f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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28
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Xydias P, Spanopoulos I, Klontzas E, Froudakis GE, Trikalitis PN. Drastic Enhancement of the CO2 Adsorption Properties in Sulfone-Functionalized Zr- and Hf-UiO-67 MOFs with Hierarchical Mesopores. Inorg Chem 2013; 53:679-81. [DOI: 10.1021/ic402430n] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Pantelis Xydias
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece
| | - Ioannis Spanopoulos
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece
| | - Emmanuel Klontzas
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece
| | - George E. Froudakis
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece
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29
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Spanopoulos I, Xydias P, Malliakas CD, Trikalitis PN. A Straight Forward Route for the Development of Metal–Organic Frameworks Functionalized with Aromatic −OH Groups: Synthesis, Characterization, and Gas (N2, Ar, H2, CO2, CH4, NH3) Sorption Properties. Inorg Chem 2013; 52:855-62. [DOI: 10.1021/ic302010e] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ioannis Spanopoulos
- Department of Chemistry, University
of Crete, Voutes 71003 Heraklion, Greece
| | - Pantelis Xydias
- Department of Chemistry, University
of Crete, Voutes 71003 Heraklion, Greece
| | - Christos D. Malliakas
- Department of Chemistry, Northwestern University,
Sheridan Rd., Evanston, Illinois 60208, United States
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30
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Manos MJ, Markoulides MS, Malliakas CD, Papaefstathiou GS, Chronakis N, Kanatzidis MG, Trikalitis PN, Tasiopoulos AJ. A highly porous interpenetrated metal-organic framework from the use of a novel nanosized organic linker. Inorg Chem 2011; 50:11297-9. [PMID: 22010964 DOI: 10.1021/ic201919q] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The initial use of a novel elongated tricarboxylic acid H(3)hmpib in metal-organic framework (MOF) chemistry resulted in a [Zn(4)O(hmpib)(2)] MOF (UCY-1) with pyrite topology. The compound displays a remarkably high internal surface area despite its double-interpenetrated structure as well as high CO(2) uptake and selective adsorption for it over CH(4).
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Affiliation(s)
- Manolis J Manos
- Department of Chemistry, University of Cyprus, 1678 Nicosia, Cyprus
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31
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Neofotistou E, Malliakas CD, Trikalitis PN. Remarkable structural diversity and single-crystal-to-single-crystal transformations in sulfone functionalized lanthanide MOFs. CrystEngComm 2010. [DOI: 10.1039/b918269c] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Papadaki I, Malliakas CD, Bakas T, Trikalitis PN. Molecular Supertetrahedron Decorated with Exposed Sulfonate Groups Built from Mixed-Valence Tetranuclear Fe33+Fe2+(μ3-Ο)(μ3-SO4)3(−CO2)3 Clusters. Inorg Chem 2009; 48:9968-70. [DOI: 10.1021/ic901145d] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ioanna Papadaki
- Department of Chemistry, University of Crete, Voutes 71003 Heraklion, Greece
| | - Christos D. Malliakas
- Department of Chemistry, Northwestern University, Sheridan Road, Evanston, Illinois 60208
| | - Thomas Bakas
- Department of Physics, University of Ioannina, Ioannina 45110, Greece
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33
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Philippidis A, Trikalitis PN. (H2NC4H8NCH2CH2NH2)(HNCH2CH2NH2)3Zn2Ge2Se8: A new, templated one-dimensional ternary semiconductor stabilized by mixed organic cations. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.04.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Philippidis A, Bakas T, Trikalitis PN. (H2NC4H8NCH2CH2NH2)2Zn2Sn2Se7: a hybrid ternary semiconductor stabilized by amine molecules acting simultaneously as ligands and counterions. Chem Commun (Camb) 2009:1556-8. [DOI: 10.1039/b821859e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Tsamourtzi K, Song JH, Bakas T, Freeman AJ, Trikalitis PN, Kanatzidis MG. Straightforward Route to the Adamantane Clusters [Sn4Q10]4− (Q = S, Se, Te) and Use in the Assembly of Open-Framework Chalcogenides (Me4N)2M[Sn4Se10] (M = MnII, FeII, CoII, ZnII) Including the First Telluride Member (Me4N)2Mn[Ge4Te10]. Inorg Chem 2008; 47:11920-9. [DOI: 10.1021/ic801762h] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Konstantina Tsamourtzi
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece, Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, Department of Physics, University of Ioannina, Ioannina 45110, Greece, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Jung-Hwan Song
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece, Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, Department of Physics, University of Ioannina, Ioannina 45110, Greece, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Thomas Bakas
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece, Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, Department of Physics, University of Ioannina, Ioannina 45110, Greece, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Arthur J. Freeman
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece, Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, Department of Physics, University of Ioannina, Ioannina 45110, Greece, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Pantelis N. Trikalitis
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece, Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, Department of Physics, University of Ioannina, Ioannina 45110, Greece, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Mercouri G. Kanatzidis
- Department of Chemistry, University of Crete, Voutes 71003, Heraklion, Greece, Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, Department of Physics, University of Ioannina, Ioannina 45110, Greece, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
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36
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Tombros N, Buit L, Arfaoui I, Tsoufis T, Gournis D, Trikalitis PN, van der Molen SJ, Rudolf P, van Wees BJ. Charge transport in a single superconducting tin nanowire encapsulated in a multiwalled carbon nanotube. Nano Lett 2008; 8:3060-3064. [PMID: 18698723 DOI: 10.1021/nl080850t] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The charge transport properties of single superconducting tin nanowires encapsulated by multiwalled carbon nanotubes have been investigated by multiprobe measurements. The multiwalled carbon nanotube protects the tin nanowire from oxidation and shape fragmentation and therefore allows us to investigate the electronic properties of stable wires with diameters as small as 25 nm. The transparency of the contact between the Ti/Au electrode and nanowire can be tuned by argon ion etching the multiwalled nanotube. Application of a large electrical current results in local heating at the contact which in turn suppresses superconductivity.
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Affiliation(s)
- Nikolaos Tombros
- Physics of Nanodevices, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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37
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Neofotistou E, Malliakas CD, Trikalitis PN. Novel Coordination Polymers Based on the Tetrathioterephthalate Dianion as the Bridging Ligand. Inorg Chem 2007; 46:8487-9. [PMID: 17867685 DOI: 10.1021/ic701414v] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first examples of coordination polymers based on the tetrathioterephthalate dianion as the bridging ligand are reported. Two novel compounds, [M(S(2)CC(6)H(4)CS(2))(DMF)(2)](DMF) (M = Zn, Mn; DMF = dimethylformamide), have been synthesized, and their structural and optical properties were investigated.
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38
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Abstract
Inorganic porous materials are being developed for use as molecular sieves, ion exchangers, and catalysts, but most are oxides. We show that various sulfide and selenide clusters, when bound to metal ions, yield gels having porous frameworks. These gels are transformed to aerogels after supercritical drying with carbon dioxide. The aerogels have high internal surface area (up to 327 square meters per gram) and broad pore size distribution, depending on the precursors used. The pores of these sulfide and selenide materials preferentially absorb heavy metals. These materials have narrow energy gaps (between 0.2 and 2.0 electron volts) and low densities, and they may be useful in optoelectronics, as photocatalysts, or in the removal of heavy metals from water.
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Affiliation(s)
- Santanu Bag
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
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39
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Jankovic L, Gournis D, Trikalitis PN, Arfaoui I, Cren T, Rudolf P, Sage MH, Palstra TTM, Kooi B, De Hosson J, Karakassides MA, Dimos K, Moukarika A, Bakas T. Carbon nanotubes encapsulating superconducting single-crystalline tin nanowires. Nano Lett 2006; 6:1131-5. [PMID: 16771567 DOI: 10.1021/nl0602387] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Superconducting low dimensional systems are the natural choice for fast and sensitive infrared detection, because of their quantum nature and the low-noise, cryogenic operation environment. On the other hand, monochromatic and coherent electron beams, emitted from superconductors and carbon-based nanostructured materials, respectively, are significant for the development of electron optical systems such as electron microscopes and electron-beam nanofabrication systems. Here we describe for the first time a simple method which yields carbon nanotubes encapsulating single crystalline superconducting tin nanowires by employing the catalytic chemical vapor deposition method over solid tin dioxide. The superconducting tin nanowires, with diameters 15-35 nm, are covered with well-graphitized carbon walls and show, due to their reduced diameters, a critical magnetic field (Hc) more than 30 times higher than the value of bulk metallic tin.
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Affiliation(s)
- Lubos Jankovic
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
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40
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Tsiafoulis CG, Trikalitis PN, Prodromidis MI. Synthesis, characterization and performance of vanadium hexacyanoferrate as electrocatalyst of H2O2. Electrochem commun 2005. [DOI: 10.1016/j.elecom.2005.10.001] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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41
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Tsiafoulis CG, Florou AB, Trikalitis PN, Bakas T, Prodromidis MI. Electrochemical study of ferrocene intercalated vanadium pentoxide xerogel/polyvinyl alcohol composite films: Application in the development of amperometric biosensors. Electrochem commun 2005. [DOI: 10.1016/j.elecom.2005.04.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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42
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Pantazis CC, Trikalitis PN, Pomonis PJ. Highly Loaded and Thermally Stable Cu-Containing Mesoporous SilicaActive Catalyst for the NO + CO Reaction. J Phys Chem B 2005; 109:12574-81. [PMID: 16852555 DOI: 10.1021/jp0516689] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of a highly loaded and thermally stable Cu-containing mesoporous silica, which was developed by making use of poly(acrylic acid) (Pac) assembled with surfactant (C(16)TAB), as template. On this backbone, TEOS and Cu(II) hydrolysis takes place leading to the development of the final mesostructure. Poly(acrylic acid) is used not only as a micelle structural component but also as a complexation agent for Cu(II) species resulting in high metal loading and increased thermal stability of the mesoporous network. The original uncalcined material possesses hexagonal ordering, while upon calcination it is transformed into a wormlike mesoporous network with metal loading >14 wt % Cu. An evaluation of its performance as heterogeneous catalyst in NO reduction by CO shows catalytic activity comparable with that of noble metal catalysts. Complete NO conversion, with >90% selectivity to N(2), was achieved between 190 and 200 degrees C. The material retained its structure and catalytic activity after 24-h testing at the maximum catalytic conversion of NO and CO.
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Affiliation(s)
- C C Pantazis
- Department of Chemistry, University of Ioannina, Ioannina, 45110, Greece.
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43
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Trikalitis PN, Bakas T, Kanatzidis MG. Periodic Hexagonal Mesostructured Chalcogenides Based on Platinum and [SnSe4]4- and [SnTe4]4- Precursors. Solvent Dependence of Nanopore and Wall Organization. J Am Chem Soc 2005; 127:3910-20. [PMID: 15771527 DOI: 10.1021/ja0447614] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mesostructured chalcogenide-based materials with long-range order and semiconducting properties can be prepared using suitable molecular building blocks, linkage metal ions and surfactant molecules. In this paper we present surfactant templated, open framework platinum tin selenide and telluride materials assembled using K4SnQ4 (Q = Se, Te) salts and K2PtCl4 as precursors and a study of pore and wall organization. We find that materials prepared in water exhibit disordered pore organization, whereas those prepared in formamide are long-range ordered with hexagonal symmetry. In formamide the [SnQ4]4- anions undergo condensation-oligomerization reactions that produce different chalcogenido molecular species, whereas in water the anions remain intact. In addition to solvent, the pore organization and overall quality of the mesostructured materials strongly depend on the surfactant molecules, i.e., chain length and headgroup size. For example, highly ordered mesostructured platinum tin selenides with hexagonal symmetry were obtained using the hydroxyl-functionalized surfactants CnH2n+1N(CH3)(CH2CH2OH)2Br (n = 16, 18, and 20), but when the headgroup was triethylammonium, hexagonal pore order was achieved only for n = 20 and not for n = 16 and 18. The experimental results imply that in order to achieve highly ordered chalcogenide frameworks a single building anionic block might be insufficient. Finally, we also report the first examples of hexagonal mesostructured Pt/Sn/Te materials based on K4SnTe4 as the precursor. The tellurides behave differently for their selenium analogues and have very low energy band gaps, in the range 0.5-0.7 eV.
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Affiliation(s)
- Pantelis N Trikalitis
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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44
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Trikalitis PN, Ding N, Malliakas C, Billinge SJL, Kanatzidis MG. Mesostructured Selenides with Cubic MCM-48 Type Symmetry: Large Framework Elasticity and Uncommon Resiliency to Strong Acids. J Am Chem Soc 2004; 126:15326-7. [PMID: 15563128 DOI: 10.1021/ja044954r] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The metal mesostructured Pt/Sn/Se chalcogenides with cubic MCM-48 type pore symmetry are found to be surprisingly stable in concentrated oxidizing acids. Their metal chalcogenide framework exhibits high flexibility during reversible proton exchange as it expands and contracts in an apparent breathing-like action.
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Affiliation(s)
- Pantelis N Trikalitis
- Departments of Chemistry and Physics, Michigan State University, East Lansing, MI 48824, USA
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45
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Hwang SJ, Iyer RG, Trikalitis PN, Ogden AG, Kanatzidis MG. Cooling of Melts: Kinetic Stabilization and Polymorphic Transitions in the KInSnSe4 System. Inorg Chem 2004; 43:2237-9. [PMID: 15046495 DOI: 10.1021/ic0351545] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Through a flame-melting/rapid-cooling process, metastable forms of solid state compounds can be discovered. We describe here an example where both slow and rapid crystallizations of a stoichiometric "KInSnSe(4)" melt give rise to kinetic forms of KInSnSe(4). These forms (alpha- and beta-) convert to the thermodynamically stable gamma-form upon heating below the melting point.
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Affiliation(s)
- Seong-Ju Hwang
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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46
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Giannakas AE, Vaimakis TC, Ladavos AK, Trikalitis PN, Pomonis PJ. Variation of surface properties and textural features of spinel ZnAl2O4 and perovskite LaMnO3 nanoparticles prepared via CTAB–butanol–octane–nitrate salt microemulsions in the reverse and bicontinuous states. J Colloid Interface Sci 2003; 259:244-53. [PMID: 16256503 DOI: 10.1016/s0021-9797(02)00068-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2002] [Accepted: 10/11/2002] [Indexed: 11/25/2022]
Abstract
Two binary oxides, a spinel, ZnAl2O4, and a typical perovskite, LaMnO3, have been prepared via CTAB-1-butanol-n-octane-nitrate salt microemulsion in the reverse and bicontinuous states. The exact point of the reverse and bicontinuous states of the microemulsion used in the synthesis was determined by conductivity experiments. The materials obtained after heating at 800 degrees C were characterized by XRD analysis for their crystal structure, N2 porosimetry for their surface area and porosity, and SEM and TEM photography for their texture. The ZnAl2O4 spinel obtained via the reverse microemulsion appears in SEM in a more fragmented form and with a higher specific surface area (143.7 m(2)g(-1)), compared to the corresponding solid prepared via the bicontinuous microemulsion, which appears more robust with lower surface area (126.7 m(2)g(-1)). Nevertheless both materials reveal in TEM a sponge-like structure. The perovskite materials LaMnO3 prepared via the reverse microemulsion showed in SEM a peculiar doughnut-like texture, each doughnut-like secondary particle having a diameter of 2 microm. The corresponding sample developed via the bicontinuous microemulsion showed in SEM uniform secondary particles of size approximately 0.2 microm. Both perovskite samples LaMnO3 appear well crystallized with relative low surface areas, 23.7 m(2)g(-1) for the reverse sample and 10.9 m(2)g(-1) for the bicontinuous one. The TEM photographs reveal that both of them, of reversed and bicontinuous origin, are made up of primary nanoparticles in the size range 40-100 nm. In SEM those materials showed a different secondary structure.
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Affiliation(s)
- A E Giannakas
- Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
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47
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Karakassides MA, Gournis D, Bourlinos AB, Trikalitis PN, Bakas T. Magnetic Fe2O3–Al2O3 composites prepared by a modified wet impregnation method. ACTA ACUST UNITED AC 2003. [DOI: 10.1039/b211330a] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Trikalitis PN, Rangan KK, Bakas T, Kanatzidis MG. Single-crystal mesostructured semiconductors with cubic Ia3d symmetry and ion-exchange properties. J Am Chem Soc 2002; 124:12255-60. [PMID: 12371867 DOI: 10.1021/ja026367g] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
If the full scientific and technological potential of mesostructured materials is to be achieved, systems with continuous domains in the form of single crystals or films must be prepared. Here we report a reliable and facile system for making large single-crystal particles of chalcogenido mesostructured materials with a highly organized cubic structure, accessible pore structure, and semiconducting properties. Building blocks with square planar bonding topology, Pt(2+) and [Sn(2)Se(6)](4)(-), in combination with long-chain pyridinium surfactants (C(n)PyBr, n = 18, 20) favor faceted single-crystal particles with the highest possible space group symmetry Ia3d. This is an important step toward developing large single-domain crystalline mesostructured semiconductors and usable natural self-assembled antidot array systems. The tendency toward cubic symmetry is so strong that the materials assemble readily under experimental conditions that can tolerate considerable variation and form micrometer-sized rhombic dodecahedral cubosome particles. The c-C(n)PyPtSnSe materials are the first to exhibit reversible ion-exchange properties. The surfactant molecules can be ion-exchanged reversibly and without loss of the cubic structure and particle morphology. The cubosomes possess a three-dimensional open Pt-Sn-Se framework with a low-energy band gap of approximately 1.7 eV.
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Affiliation(s)
- Pantelis N Trikalitis
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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Petkov V, Trikalitis PN, Bozin ES, Billinge SJL, Vogt T, Kanatzidis MG. Structure of V(2)O(5)*nH(2)O xerogel solved by the atomic pair distribution function technique. J Am Chem Soc 2002; 124:10157-62. [PMID: 12188680 DOI: 10.1021/ja026143y] [Citation(s) in RCA: 163] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A long-standing issue regarding the local and long-range structure of V(2)O(5)*nH(2)O xerogel has been successfully addressed. The full three-dimensional structure of the lamellar turbostratic V(2)O(5)*nH(2)O xerogel was determined by the atomic pair distribution function technique. We show that on the atomic scale the slabs of the xerogel can be described well as almost perfect pairs (i.e., bilayers) of single V(2)O(5) layers made of square pyramidal VO(5) units. These slabs are separated by water molecules and stack along the z-axis of a monoclinic unit cell (space group C2/m) with parameters a = 11.722(3) A, b = 3.570(3) A, c = 11.520(3) A, and beta = 88.65 degrees. The stacking sequence shows signatures of turbostratic disorder and a structural coherence limited to 50 A.
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Affiliation(s)
- Valeri Petkov
- Department of Physics and Astronomy and Center for Fundamental Materials Research, Michigan State University, East Lansing 48824, USA
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Sieve B, Trikalitis PN, Kanatzidis MG. Quaternary Germanides Formed in Molten Aluminum: Tb2NiAl4Ge2 and Ce2NiAl6-xGe4-y (x ∼ 0.24, y ∼ 1.34)Dedicated to Professor Welf Bronger on the Occasion of his 70th Birthday. Z Anorg Allg Chem 2002. [DOI: 10.1002/1521-3749(200207)628:7<1568::aid-zaac1568>3.0.co;2-a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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