Academic literature on the topic 'Cationic MOFs'

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Journal articles on the topic "Cationic MOFs"

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Hang, Meng-Ting, Yi Cheng, Yi-Tong Wang, et al. "Rational synthesis of isomorphic rare earth metal–organic framework materials for simultaneous adsorption and photocatalytic degradation of organic dyes in water." CrystEngComm 24, no. 3 (2022): 552–59. http://dx.doi.org/10.1039/d1ce01411k.

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Two isomorphic rare earth metal–organic frameworks (MOFs) were synthesized by a solvothermal method. These MOFs have good removal effects on cationic and neutral dyes through simultaneous adsorption and photocatalysis.
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Li, Xinxiong, Yaqiong Gong, Huaixia Zhao, and Ruihu Wang. "Solvent-mediated crystal-to-crystal transformations from a cationic homometallic metal–organic framework to heterometallic frameworks." CrystEngComm 16, no. 37 (2014): 8818–24. http://dx.doi.org/10.1039/c4ce01035c.

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A new strategy for the synthesis of heterometallic metal–organic frameworks (MOFs) was presented. Two unprecedented heterometallic MOFs were successfully prepared through solvent-mediated crystal-to-crystal transformations from a monometallic cationic MOF.
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Gomez, Germán E., María dos Santos Afonso, Héctor A. Baldoni, Federico Roncaroli, and Galo J. A. A. Soler-Illia. "Luminescent Lanthanide Metal Organic Frameworks as Chemosensing Platforms towards Agrochemicals and Cations." Sensors 19, no. 5 (2019): 1260. http://dx.doi.org/10.3390/s19051260.

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Since the first studies of luminescent sensors based on metal organic frameworks (MOFs) about ten years ago, there has been an increased interest in the development of specific sensors towards cations, anions, explosives, small molecules, solvents, etc. However, the detection of toxic compounds related to agro-industry and nuclear activity is noticeably scarce or even non-existent. In this work, we report the synthesis and characterization of luminescent lanthanide-based MOFs (Ln-MOFs) with diverse crystalline architectures obtained by solvothermal methods. The luminescent properties of the la
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Galaço, Ayla Roberta Borges da Silva, Kleber Thiago de Oliveira, Maria Carolina Donatoni, Richard I. Walton, and Osvaldo Antonio Serra. "Ion-exchange resin as a new tool for characterisation of coordination compounds and MOFs by NMR spectroscopy." Chemical Communications 55, no. 56 (2019): 8106–9. http://dx.doi.org/10.1039/c9cc03721g.

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<sup>1</sup>H and <sup>13</sup>C NMR spectroscopy is used to investigate the organic constituents of paramagnetic MOFs and coordination compounds using a cationic exchange resin. Post-modifications on MOFs were performed and quantitatively determined by this methodology.
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Zhang, Chenghui, Libo Sun, Chuanqi Zhang, Song Wan, Zhiqiang Liang, and Jiyang Li. "Novel photo- and/or thermochromic MOFs derived from bipyridinium carboxylate ligands." Inorganic Chemistry Frontiers 3, no. 6 (2016): 814–20. http://dx.doi.org/10.1039/c6qi00013d.

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Two new Zn-MOFs based on 1-(3,5-dicarboxyphenyl)-4,4′-bipyridinium bromide have been synthesized. Compound 1 has a 3D interpenetrated cationic framework with photo- and thermochromism, while compound 2 possesses a 2D layered cationic network with only photochromism.
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Fu, Hongru, Yuying Jiang, Fei Wang, and Jian Zhang. "The Synthesis and Properties of TIPA-Dominated Porous Metal-Organic Frameworks." Nanomaterials 11, no. 11 (2021): 2791. http://dx.doi.org/10.3390/nano11112791.

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Metal-Organic Frameworks (MOFs) as a class of crystalline materials are constructed using metal nodes and organic spacers. Polydentate N-donor ligands play a mainstay-type role in the construction of metal−organic frameworks, especially cationic MOFs. Highly stable cationic MOFs with high porosity and open channels exhibit distinct advantages, they can act as a powerful ion exchange platform for the capture of toxic heavy-metal oxoanions through a Single-Crystal to Single-Crystal (SC-SC) pattern. Porous luminescent MOFs can act as nano-sized containers to encapsulate guest emitters and constru
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Zhu, Zhifeng, Yue-Ling Bai, Liangliang Zhang, Daofeng Sun, Jianhui Fang, and Shourong Zhu. "Two nanocage anionic metal–organic frameworks with rht topology and {[M(H2O)6]6}12+ charge aggregation for rapid and selective adsorption of cationic dyes." Chem. Commun. 50, no. 93 (2014): 14674–77. http://dx.doi.org/10.1039/c4cc07365g.

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Liu, Xiao-Ting, Si-Si Chen, Si-Miao Li, et al. "Structural tuning of Zn(ii)-MOFs based on pyrazole functionalized carboxylic acid ligands for organic dye adsorption." CrystEngComm 22, no. 36 (2020): 5941–45. http://dx.doi.org/10.1039/d0ce00798f.

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Wu, Bin, Liang Ge, Dongbo Yu, et al. "Cationic metal–organic framework porous membranes with high hydroxide conductivity and alkaline resistance for fuel cells." Journal of Materials Chemistry A 4, no. 38 (2016): 14545–49. http://dx.doi.org/10.1039/c6ta06661e.

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Song, Tao, Jiancan Yu, Yuanjing Cui, Yu Yang, and Guodong Qian. "Encapsulation of dyes in metal–organic frameworks and their tunable nonlinear optical properties." Dalton Transactions 45, no. 10 (2016): 4218–23. http://dx.doi.org/10.1039/c5dt03466c.

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Dissertations / Theses on the topic "Cationic MOFs"

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Brozek, Carl Kavanaugh. "The reactivity and cation exchange of MOF-5." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98820.

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Thesis: Ph. D. in Inorganic Chemistry, Massachusetts Institute of Technology, Department of Chemistry, 2015.<br>Vita. Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 245-258).<br>The aim of this thesis is to demonstrate that the inorganic clusters within MOF-5 can be derivatized with redox-active cations for subsequent use in coordination chemistry and small-molecule activation. Rather than reproduce known metal species, this work harnesses the intrinsic properties of the MOF-5 lattice to isolate species that are difficult or impossible to achieve with solut
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Andriotou, Despoina. "Synthèse de complexes et de polymères de coordination avec des cations de métaux de haute valence (Nb) ou d'actinides (Th,U)." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR001.

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Dans cette contribution, nous explorons la chimie et la réactivité des cations métalliques de haute valence (4+ et 5+) vis-à-vis de ligands carboxylate ainsi que la possibilité d'isoler des metal-organic frameworks. La première partie traite de la chimie d'un métal peu étudié, le niobium à son degré d'oxydation +4 ou +5. La réaction du précurseur tétrachlorure de niobium(IV) (NbCl4·2THF) avec des ligands de la famille des acides pyridine-dicarboxyliques dans différents solvants organiques a conduit à l'isolation de quatre complexes avec des unités mononucléaires discrètes de niobium(IV) en coo
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Jewula, Pawel. "Synthèse et étude de ligands hydroxamates cycliques dérivés des sidérophores naturels pour la complexation sélective des actinides." Thesis, Dijon, 2013. http://www.theses.fr/2013DIJOS038.

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Pas de résumé en français<br>The goal of this research was the synthesis and spectroscopic, structural andphysical-chemical characterization of cyclic 6- and 7-membered hydroxamicacids, a tetrahydroxamic calix[4]arene-based tetrapodal receptor, and their metalcomplexes with trivalent and tetravalent metal cations. They were characterizedby several techniques such as 1H and 13C NMR, IR, and mass spectroscopies,single crystal X-ray analysis, and potentiometry. Cyclic hydroxamic acids arefound in a few mix siderophores but their coordination properties were stillunknown. The structural features o
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Cheng, Wei-Sheng, and 鄭瑋昇. "Alkaline-earth Metal Cations and Transition Metal Cations Doped Metal-organic Framworks(MOFs) Effects on Hydrogen Adsorption." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/31630771863244993641.

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李宗諭. "Alkali Metal Cations Doped Metal-Organic Frameworks(MOFs) Effects on Hydrogen Adsorption." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/75714449046023037293.

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Samin, Umer. "An Investigation into the Effect of Cation-exchange on the Adsorption Performance of Indium-based Sodalite-ZMOF." Thesis, 2016. http://hdl.handle.net/10754/607269.

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There is a pressing need for advanced solid-state materials that can be implemented in industrial gas separation processes to achieve separations with a significantly reduced energy input compared to what is typically required from current technologies. Although certain porous materials like zeolites bear some commercial significance for gas separation; their inherent lack of tunability limits the extent to which these materials may be exploited in industry. Zeolite-like Metal-Organic Frameworks (ZMOFs) are a sub-class of Metal-Organic Framework materials (MOFs) that show a structural semblan
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Book chapters on the topic "Cationic MOFs"

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Singh, Narinder, and Mayank. "MOF-based Electrochemical Sensors for Alkali Metal Cations." In Metal-Organic Frameworks-Based Hybrid Materials for Environmental Sensing and Monitoring. CRC Press, 2022. http://dx.doi.org/10.1201/9781003188148-12.

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Magnuson, Zachary Lawrence, and Shengqian Ma. "Sensing and sequestration of inorganic cationic pollutants by metal-organic frameworks." In Metal-Organic Frameworks (MOFs) for Environmental Applications. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-814633-0.00005-3.

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Nqombolo, Azile, Anele Mpupa, Jianwei Ren, and Philiswa Nosizo Nomngongo. "Nanocomposite membranes for the removal of dyes." In Waste PET-MOF-Cleanwater: Waste PET-Derived Metal-Organic Framework (MOFs) as Cost-Effective Adsorbents for Removal of Hazardous Elements from Polluted Water. UJ Press, 2022. http://dx.doi.org/10.36615/9781776419463-06.

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The scarcity of affordable, sustainable, safe, and clean water is one of the major challenges faced by the world. The use of polymeric membranes in wastewater treatment has become a major solution in fighting water scarcity. Some of these membranes (microfiltration, ultrafiltration, and nanofiltration) operate at low pressure when compared to reverse osmosis. However, permeability, selectivity, and fouling limit the application of these polymeric membranes. The incorporation of nanomaterials into the polymeric matrix has resolved such problems in membrane technology. Recent studies show that n
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Fuks, L., I. Herdzik-Koniecko, and M. Rogowski. "Reuse of waste PET canisters through the production of activated carbon, an adsorbent to remove radionuclides from aqueous solutions." In Waste PET-MOF-Cleanwater: Waste PET-Derived Metal-Organic Framework (MOFs) as Cost-Effective Adsorbents for Removal of Hazardous Elements from Polluted Water. UJ Press, 2022. http://dx.doi.org/10.36615/9781776419463-09.

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End-of-life polyethylene terephthalate (PET) bottles were used to prepare activated carbon by thermal carbonisation at 850 ℃ for 0.5 hours followed by chemical activation with a boiling aqueous solution of zinc chloride (ZnCl2). The batch adsorption of mono-, di- and trivalent cationic radionuclides was then examined at ambient temperature. The main physicochemical properties of the obtained material that may determine its adsorption properties have also been studied.
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Abdul Azeez, Nazeer, Sapna Pahil, Surendra H. Mahadevegowda, and Sudarshana Deepa Vijaykumar. "Metal-Organic Frameworks (MOFs) for the Antimicrobial Applications." In Recent Trends and The Future of Antimicrobial Agents - Part 2. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815123975123010009.

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Metal-Organic Frameworks (MOFs) are a class of porous crystalline materials made-up of transition-metal cations linked with multidentate organic ligands by the coordination bonds. The strong, flexible frameworks and the porous structure of the MOFs establish them as an effective carriers of various functional compounds, such as gases, drugs, and anti-microbial agents. The MOFs render high loading capacity and sustained release, which is the desired property in anti-microbial applications. Similar porous material for the anti-microbial application is Zeolite, however, it is more complex to synt
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Li, Zhaohui. "Removal of cationic surfactants from water using clinoptilolite zeolite." In From Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference, Proceedings of the 15th International Zeolite Conference. Elsevier, 2007. http://dx.doi.org/10.1016/s0167-2991(07)81105-0.

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Edler, K. J., C. Fernandez-Martin, T. Brennan, and S. J. Roser. "A tale of two mechanisms: comparing mesostructure formation in cationic and non-ionic surfactant-templated silicas." In From Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference, Proceedings of the 15th International Zeolite Conference. Elsevier, 2007. http://dx.doi.org/10.1016/s0167-2991(07)81057-3.

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Kim, M. H., S. H. Jang, I. M. Kang, et al. "Synthesis of novel mesoporous material through intercalation of anionic silicates into cationic charged layered material hydrotalcite." In From Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference, Proceedings of the 15th International Zeolite Conference. Elsevier, 2007. http://dx.doi.org/10.1016/s0167-2991(07)81086-x.

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Halil, Dervishe, Ben Slater, and Dewi W. Lewis. "Influence of cations on crystal growth mechanism: ABW vs. JBW." In From Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference, Proceedings of the 15th International Zeolite Conference. Elsevier, 2007. http://dx.doi.org/10.1016/s0167-2991(07)80907-4.

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de Gennaro, B., P. Aprea, F. Pepe, and C. Colella. "Cation selectivity of a Ca2+ pre-exchanged clinoptilolite tuff." In From Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference, Proceedings of the 15th International Zeolite Conference. Elsevier, 2007. http://dx.doi.org/10.1016/s0167-2991(07)81110-4.

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Conference papers on the topic "Cationic MOFs"

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Andersen, Pål Østebø, Sander Sunde Herlofsen, Reidar Inge Korsnes, and Mona Wetrhus Minde. "Flow-Through Experiments of Reactive Ba-Sr-Mg Brines in Mons Chalk at North Sea Reservoir Temperature at Different Injection Rates." In SPE EuropEC - Europe Energy Conference featured at the 84th EAGE Annual Conference & Exhibition. SPE, 2023. http://dx.doi.org/10.2118/214367-ms.

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Abstract Chalk reservoirs in the North Sea of Norway contain significant amounts remaining oil and gas, and are potential candidates for enhanced recovery by modifying the injected brine composition. This work investigates how brines with divalent cations Ba, Sr and Mg interact when injected into chalk (CaCO3). Ba and Sr are often associated with mineral precipitation and occur in formation water while Mg is present in seawater, commonly injected in chalk. Relatively clean (&amp;gt;99% calcite) outcrop chalk cores from Mons, Belgium, were flooded at 130 °C in triaxial cells with four brines co
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Ismail, Rabah Mahmoud Ahmad, Edith Ajiroghene Enemose, Marwa Al-Jamal, Sathish Kumar Ramachandran, Hashem Al-Mattarneh, and Durgaprasad Gangodkar. "Co-MoF Derived Colorimetric Sensors for Detection of Environmental Toxic Heavy Metal Analysis." In International Conference on Recent Advancements in Biomedical Engineering. Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/p-6pqbv5.

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The Co-MoF was identified as better catalyst for colorimetric sensing for effective detection of Hg2+ ions. The mimicking activities and oxidise the TMB in the existence of hydrogen peroxide (H2O2) to create a blue-colored sample. The oxidation of TMB was greatly delayed or reduced in the existence of bio-molecule Glutathione since of its stronger cations to repair capability. GSH substrates are oxidised when Hg2+ is introduced because of the higher interaction of mercury ions for GSH's thiol groups. Hg2+ concentrations ranged from 1 to 50 nM, and it exhibits a LOD of 0.28 nM reached in this s
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