Relevant bibliographies by topics / Phosphonic acid

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
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Academic literature on the topic 'Phosphonic acid'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 March 2023

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Journal articles on the topic "Phosphonic acid"

1

Weinberger, Christian, Tatjana Heckel, Patrick Schnippering, Markus Schmitz, Anpeng Guo, Waldemar Keil, Heinrich C. Marsmann, Claudia Schmidt, Michael Tiemann, and René Wilhelm. "Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction." Nanomaterials 9, no. 2 (February 12, 2019): 249. http://dx.doi.org/10.3390/nano9020249.

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The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery. We present a comprehensive study of a straightforward synthesis method via direct immobilization of several phosphonic acids and phosphoric acid esters on various mesoporous silicas in a Dean–Stark apparatus with toluene as the solvent. Due to the utilization of azeotropic distillation, there was no need to dry phosphonic acids, phosphoric acid esters, solvents, or silicas prior to synthesis. In addition to modeling phosphonic acids, immobilization of the important biomolecule adenosine monophosphate (AMP) on the porous supports was also investigated. Due to the high surface area of the mesoporous silicas, a possible catalytic application based on immobilization of an organocatalyst for an asymmetric aldol reaction is discussed.
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Maurya, Sandip, Katie Lim, Zhendong Hu, Hongfei Jia, Jeffrey Michael Klein, and Yu Seung Kim. "Alkyl Phosphonic Acids: An Alternative to Phosphoric Acid in HT-Pemfcs." ECS Meeting Abstracts MA2022-02, no. 41 (October 9, 2022): 1510. http://dx.doi.org/10.1149/ma2022-02411510mtgabs.

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Phosphoric acid has received the most attention as a choice of electrolyte for a high-temperature proton exchange membrane fuel cell (HT-PEMFC). Phosphoric acid has many attractive properties such as high anhydrous conductivity, good compatibility with hydrocarbon membranes, and thermal stability [1], which enables high fuel cell performance under anhydrous and elevated operating temperatures (140-180 oC) [2-3]. However, phosphoric acid has undesirable properties such as high catalyst poisoning, high evaporation rate at > 200 oC, and low acid retention from the doped membrane. Alkyl phosphonic acid may correct some of the drawbacks of phosphoric acid, improving fuel cell performance and durability. In this presentation, we report the technical challenges and possible resolutions for HT-PEMFCs using alkyl phosphonic acid doped membranes. We focus on the effects of alkyl phosphonic acid on hydrogen oxidation and oxygen reduction reactions of Pt-based catalysts. In addition, we discuss the membrane selection of robust operation of alkyl phosphonic acid-based HT-PEMFC. References: [1] A.S. Lee, Y.-K. Choe, I. Matanovic, Y.S. Kim, Journal of Materials Chemistry A, 7 (2019) 9867-9876. [2] K.H. Lim, A.S. Lee, V. Atanasov, J. Kerres, E.J. Park, S. Adhikari, S. Maurya, L.D. Manriquez, J. Jung, C. Fujimoto, I. Matanovic, J. Jankovic, Z. Hu, H. Jia, Y.S. Kim, Nature Energy, 7 (2022) 248-259. [3] V. Atanasov, A.S. Lee, E.J. Park, S. Maurya, E.D. Baca, C. Fujimoto, M. Hibbs, I. Matanovic, J. Kerres, Y.S. Kim, Nature Materials, 20 (2021) 370-377.
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Sevrain, Charlotte M., Mathieu Berchel, Hélène Couthon, and Paul-Alain Jaffrès. "Phosphonic acid: preparation and applications." Beilstein Journal of Organic Chemistry 13 (October 20, 2017): 2186–213. http://dx.doi.org/10.3762/bjoc.13.219.

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The phosphonic acid functional group, which is characterized by a phosphorus atom bonded to three oxygen atoms (two hydroxy groups and one P=O double bond) and one carbon atom, is employed for many applications due to its structural analogy with the phosphate moiety or to its coordination or supramolecular properties. Phosphonic acids were used for their bioactive properties (drug, pro-drug), for bone targeting, for the design of supramolecular or hybrid materials, for the functionalization of surfaces, for analytical purposes, for medical imaging or as phosphoantigen. These applications are covering a large panel of research fields including chemistry, biology and physics thus making the synthesis of phosphonic acids a determinant question for numerous research projects. This review gives, first, an overview of the different fields of application of phosphonic acids that are illustrated with studies mainly selected over the last 20 years. Further, this review reports the different methods that can be used for the synthesis of phosphonic acids from dialkyl or diaryl phosphonate, from dichlorophosphine or dichlorophosphine oxide, from phosphonodiamide, or by oxidation of phosphinic acid. Direct methods that make use of phosphorous acid (H3PO3) and that produce a phosphonic acid functional group simultaneously to the formation of the P–C bond, are also surveyed. Among all these methods, the dealkylation of dialkyl phosphonates under either acidic conditions (HCl) or using the McKenna procedure (a two-step reaction that makes use of bromotrimethylsilane followed by methanolysis) constitute the best methods to prepare phosphonic acids.
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Turgis, Raphaël, Antoine Leydier, Guilhem Arrachart, Fabien Burdet, Sandrine Dourdain, Gilles Bernier, Manuel Miguirditchian, and Stéphane Pellet-Rostaing. "Uranium Extraction from Phosphoric Acid Using Bifunctional Amido-Phosphonic Acid Ligands." Solvent Extraction and Ion Exchange 32, no. 5 (June 6, 2014): 478–91. http://dx.doi.org/10.1080/07366299.2014.898435.

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Bruckmann, J., C. Krüger, C. W. Lehmann, W. Leitner, J. Rust, and C. Six. "Ethylenebis(phosphonic acid)." Acta Crystallographica Section C Crystal Structure Communications 55, no. 4 (April 15, 1999): 695–96. http://dx.doi.org/10.1107/s0108270198016448.

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YURT, AYSEL, and ESRA SOLMAZ. "PHOSPHONIC ACID MONOLAYERS FOR CORROSION PROTECTION OF COPPER: EQCM AND EIS INVESTIGATIONS." Surface Review and Letters 27, no. 06 (November 1, 2019): 1950166. http://dx.doi.org/10.1142/s0218625x1950166x.

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Preparation, characterization and application of protective phosphonic acid monolayers formed by 1-Aminohexyl phosphonic acid (AHP), 1,4-butanediphosphonic acid (BDPA), 1-amino-1,3-dimethylbutyl phosphonic acid (ADBP) on copper surface as anticorrosive self-assembled molecular monolayers (SAMs) have been investigated by atomic force microscopy (AFM) analysis, electrochemical impedance spectroscopy (EIS) and in situ electrochemical quartz crystal microbalance (EQCM) techniques. Film formation and growth were monitored by EQCM and the step-by-step construction of monolayer was investigated through measurement of the frequency change, which corresponds to mass change due to the adsorption of molecules. Observed increase in electrode mass suggests that SAMs formed on copper surface by the adsorption of phosphonic acids. Results clearly demonstrate that adsorbed amounts of phosphonic acids were strongly influenced by immersion time and molecular structure. Quantum chemical calculations were performed by semi-empirical PM6 method, in order to explain the relationship between molecular structure and adsorption mechanism. Quantum chemical parameters of phosphonic acids propound that adsorption of molecules on copper surface has a chemical mechanism. Corrosion protection ability of SAMs against the acidic corrosion of copper has been evaluated in 0.1[Formula: see text]M H2SO4 solution. It was found that phosphonic acid SAMs act as protective barrier and the protection efficiencies increased in the following order: [Formula: see text].
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Khanvilkar, Aditya N., and Ashutosh V. Bedekar. "Synthesis and characterization of chiral aza-macrocycles and study of their enantiomer recognition ability for organo-phosphoric acid and phosphonic acid derivatives by 31P NMR and fluorescence spectroscopy." Organic & Biomolecular Chemistry 14, no. 9 (2016): 2742–48. http://dx.doi.org/10.1039/c5ob02616d.

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Two diastereomers of optically active N,O-containing new macrocycles with dual chirality were synthesized and evaluated for chiral discrimination of organo phosphoric and phosphonic acids by 31P NMR and fluorescence spectroscopy.
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Paladini, A., C. Calcagni, T. Di Palma, M. Satta, M. Speranza, D. Scuderi, A. Laganà, G. Fago, and A. Giardini Guidoni. "Laser production of gas phase complexes of metalα-aminophosphonic acid mixtures and their role in chiral recognition." International Journal of Photoenergy 3, no. 4 (2001): 217–21. http://dx.doi.org/10.1155/s1110662x01000290.

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Clusters between first-group metal ions and chiralα-aminophosphonic acids have been readily generated by Pulsed Laser Ablation (PLA) and by Electrospray Ionization (ESI) and their fragmentation investigated by mass spectrometry. The complexes studied have the general formula[Me(I)Cl2]+, where Me(I) is H, Li, Na, or K, C is (R)-(—)-(1-aminoethyl) phosphonic acid(ER)and (S)-(+)-(1-aminoethyl) phosphonic acid(ES),(1R)-(+)-(1-amino-2-methylpropyl) phosphonic acid(PR)and (1S)-(—)-(1-amino-2-methylpropyl) phosphonic acid(PS),(1R)-(-)-(1-amino-hexyl) phosphonic acid (HR) and (1S)-(+)-(1-amino-hexyl) phosphonic acid (HS), o-phospho-L-serine (SS)ando-phospho-D-serine(SR), and L is a referenceα-aminophosphonic acid (E, P, H or S) of defined configuration. Collision induced dissociation (CID) of diastereomeric[Me(I)Cl2]+complexes leads to fragmentation patterns characterized by[Me(I)Cl]+/[Me(I)L2]+abundance ratios which depend upon the configuration of solute C. These different spectral features were correlated to the different stability of the diastereomeric[Me(I)CRL]+and[Me(I)CSL]+complexes in the gas phase.
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Kamber, Matthias, and George Just. "γ-Phosphono-γ-lactones. The use of allyl esters as easily removable phosphonate protecting groups." Canadian Journal of Chemistry 63, no. 4 (April 1, 1985): 823–27. http://dx.doi.org/10.1139/v85-136.

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During the synthesis of γ-lactones bearing a phosphonic acid group at the γ-position, difficulties were encountered generating the free phosphonic acids from corresponding esters. A protecting group used for carboxylic acids was adapted to phosphonic acids, making this transformation easy.
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Abbenante, Giovanni, Robert Hughes, and Rolf H. Prager. "Potential GABA B Receptor Antagonists. IX The Synthesis of 3-Amino-3-(4-chlorophenyl)propanoic Acid, 2-Amino-2-(4-chlorophenyl)ethylphosphonic Acid and 2-Amino-2-(4-chlorophenyl)ethanesulfonic Acid." Australian Journal of Chemistry 50, no. 6 (1997): 523. http://dx.doi.org/10.1071/c96216.

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This paper describes the synthesis of 3-amino-3-(4-chlorophenyl)propanoic acid and the corresponding phosphonic and sulfonic acids, lower homologues of baclofen, phaclofen and saclofen respectively. The chlorinated acids were all weak specific antagonists of GABA at the GABAB receptor, with the sulfonic acid (pA2 4·0) being stronger than the phosphonic acid (pA2 3·8) and carboxylic acid (pA2 3·5).
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Dissertations / Theses on the topic "Phosphonic acid"

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McNichols, Brett William. "Synthesis and Application of Styryl Phosphonic and Cinnamic Acid Derivatives." Thesis, Colorado School of Mines, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10624231.

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Styryl phosphonic and cinnamic acid derivatives have been gaining attention as key candidates to modulate specific electrode properties in organic electronic devices such as work function, surface energies, wettability, and electron charge transfer kinetics that lead to increased efficiency, operational range, and device lifetimes. Very few of these acids are commercially available. The driving factor behind this research is to explore simple, high yield, and inexpensive synthetic routes towards synthesis of these acids. Herein, the novel synthesis of vinyl phosphonic acids (VPAs) and their subsequent influence on interface properties compared to their phenyl phosphonic acids (PPAs) and benzyl phosphonic acids (BPAs) analogues are explored. This includes an in depth comparison of varying polar VPA, BPA, and PPA “families” attachment on conductive oxides as they allow for careful work function tuning of band edge energy and chemical properties on these surfaces.

By leveraging similar techniques of VPA synthesis we can produce analogous cinnamic acids in which these same surface control concepts are applied on the surface of lead sulfide (PbS) colloidal semiconductor nano-crystals, or quantum dots (QDs). In order to do this, first a development of a simple solution-phase ligand exchange was necessary, from which we selectively replace native solubilizing ligands with these fictionalized cinnamic acids. This application achieved remarkable control allowing the band edge position to be tuned over an unprecedented 2.0 eV.

This cinnamic acid synthetic chemistry can then be extended to functionalize multi acrylate containing molecules creating organic linkers to be integrated into Metal Organic Frameworks (MOFs). MOFs have increasingly gained attention for many high impact applications including but not limited to catalysis, gas storage and release, sensors, energy harvesting, conductivity, and filtration. A great amount of research is presently being conducted in developing new MOFs from the same handful of commercially available linkers. We introduce synthetic techniques for 18 isoreticular series of linkers that can be formulated with similar, if not identical, conditions giving way to the formation of previously unknown frameworks. This technique led us to incorporate a number of these linkers into Ni-MOFs and investigate catalytic activity for conversion of oleic acid to liquid hydrocarbons.

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Oquendo, Galarza Luis E. "Modification of Indium Tin Oxide Surfaces with Phosphonic Acid Functionalized Phthalocyanines." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/344225.

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The overall efficiency of organic photovoltaics cells (OPVs) is influenced by the nature of the charge injection barrier at the transparent conducting oxide (TCO) bottom contact. Modification of the transparent conducting oxide (TCO)/organic interface with an electroactive molecular monolayer will potentially create a robust ohmic contact that will influence the efficiency of hole injection into the TCO. Asymmetric zinc Phthalocyanines (ZnPc) with a flexible phosphonic acid (PA) linker have been synthesized and used to modify indium tin oxide (ITO) surfaces. The adsorption of PA functionalized asymmetric ZnPcs on an ITO/waveguide was monitored using attenuated total reflectance (ATR) spectroscopy. Polarized dependent ATR spectroscopy was used to determine the orientation of these absorbed subpopulations species on ITO modified surfaces as a function of wavelength using transverse electric (TE) or transverse magnetic (TM) polarized light. The first oxidation potential on absorbed monolayers was found by cyclic voltammetry to be resolved into two peaks indicative of two electrochemically distinct subpopulations of molecules, atributed to aggregates and monomerics forms of PA functionalized ZnPcs. Potential modulated ATR (PM-ATR) spectroelechtrochemistry was employed to measure the charge transfer rates constants (k(s,app)) at ITO modified surfaces using TE and TM polarized light. Faster charge transfer rate constants were found for molecules with a smaller tunneling distance. A k(s,app) of 3.9 x 10⁴ s⁻¹ represents the fastest rate measured for PA functionalized ZnPc chromophore tethered to an ITO waveguide electrode by PM-ATR. We synthesized and characterized the first examples of PA functionalized RuPcs to investigate the effect of molecular orientation on charge transfer properties at an ITO/organic interface. PA functionalized RuPcs have the ability to coordinate axial ligand to suppress aggregation, providing the flexibility of connecting the anchoring group through the axial position of the metal and allowing chemisorption of the molecule in plane with ITO. Cyclic voltammetry and ATR UV/vis spectroscopy on the modified ITO surface demonstrated a surface composition of a closed-packed monolayer of monomeric species. Measurement of the charge transfer rates constants demonstrated that RuPc anchored to ITO exhibited slow rates compared to corresponding surface bound ZnPcs. Finally, we describe the synthesis and characterization of a new PA functionalized N-pyridinyl perylenediimide (PDI)-RuPc donor-acceptor dyad capable of chemisorption to ITO surfaces as a molecular-level heterojunction system to study photo induced charge separated states. The developed ensemble was proven to be stable on ITO for further study of charge injection events from the dyad to the oxide surface.
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Centrone, Charla Anne. "Synthesis of C-phosphonic acid, C-phosphinic acid, and C-sulfone analogs of decaprenolphosphoarabinose inhibitors of mycobacterial arabinosyltransferases /." Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1054062979.

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Thesis (Ph. D.)--Ohio State University, 2003.
Document formatted into pages; contains xvi, 371 p.; also contains graphics. Includes bibliographical references. Abstract available online via OhioLINK's ETD Center; full text release delayed at author's request until 2005 May 5.
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Sebah, Majda. "Novel Synthetic and Evaluation Studies on Phosphonic Acid Functlonalised Periodic Hybrid Materials." Thesis, Queen Mary, University of London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520461.

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Hotchkiss, Peter J. "The design, synthesis, and use of phosphonic acids for the surface modification of metal oxides." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/31836.

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Thesis (Ph.D)--Chemistry and Biochemistry, Georgia Institute of Technology, 2009.
Committee Chair: Marder, Seth; Committee Member: Bredas, Jean-Luc; Committee Member: Kroger, Nils; Committee Member: Perry, Joe; Committee Member: Sandhage, Ken. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Senior, Geoffrey David. "The role of dissolved metal ionic species in the phosphonic acid flotation of cassiterite." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27527.

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The techniques of X-ray photoelectron spectroscopy (XPS), secondary ionization mass spectroscopy, chemical abstraction analysis and microelectrophoresis were used to confirm the existence of iron films on cassiterite grains recovered from the tin concentrator of Renison Limited (Australia). All analyses indicated the level of surface iron contamination to be far in excess of that characteristic of the bulk mineral lattice. No evidence was found in XPS analyses to support the contention that this iron represented lattice iron that had accumulated on the surface due to migration through the lattice, as has been suggested to be the case for certain sulphide minerals. Instead, all of the experimental data supported the hypothesis that the surface film was the result of previous adsorption of hydrous ferric oxide sols onto the cassiterite surface in the plant environment but which had undergone fundamental structural changes when the sample was dried. Specifically, the presence of the iron film did not change significantly the electrokinetic properties of cassiterite, as is known to be the case for other insoluble oxide minerals in the presence of freshly precipitated hydrolyzed metal ionic species. To reconcile these observations, it was shown independently that drying, both thermally and under vacuum, caused the charge reversal phenomena related to hydrolyzed metal ion adsorption either to diminish or disappear. In the presence of styryl phosphonic acid, the iron contaminated cassiterite exhibited a microflotation response that corresponded remarkably with the actual flotation observed in the plant from which it was taken. A critical examination of the literature revealed that this behaviour was indicative of that reported for other cassiterites in both batch and plant flotation of ores. Most notably the mineral floated strongly between pH 4.0 and 7.5. However, after acid leaching, the pH of maximum recovery moved to more acidic values around pH 2.0 and the mineral floated much less strongly in the slightly acidic to alkaline range. This latter behaviour correlated with a large body of published data for which it was known that the cassiterite used was either a high purity sample, not exposed to solutions containing dissolved metal ionic species, or had been acid cleaned prior to test work. Conversely, results from fundamental studies, where this was known not to be the case, exhibited remarkable consistency with the data obtained for the untreated cassiterite sample. The principal influence of the iron species adsorbed onto the surface of cassiterite was shown to be flotation activation in the pH range where the adsorbed species were not extensively solubilized. In the acidic range below pH 4.0, solubilization of the surface iron entities occurred which caused a severe flotation depressant effect. This solubilization was promoted in the presence of sodium fluoride, a known complexing agent for iron in acidic solutions, and the phosphonic acid. In the latter case, evidence was found for the formation of a soluble iron phosphonate complex. Independent confirmation was also sought and obtained from light scattering photometry to verify the strong affinity of phosphonic acids for hydrous ferric oxide species. Other ionic entities, such as those of magnesium and calcium were found to interact far less strongly. On the basis of this research, it has proven possible to provide a rational interpretation of all previously existing data pertaining to cassiterite flotation with phosphonic acids, for which reasonable sample description and preparation information exist. Such a reconciliation has not previously been provided, either through studies on the effects of cassiterite mineral lattice impurities or other work with dissolved metal ionic species. Furthermore, a significant link has been established between the results of fundamental analyses and industrial related observations. In particular, commercially successful practices, such as fluoride pretreatment of ore slurries prior to cassiterite flotation, now can be interpreted successfully in terms of fundamental ion solution chemistry. The evidence is that such processes involve the solubilization under acidic conditions of adsorbed iron hydroxy sols from the surface of minerals prior to cassiterite flotation. A bulk rejection of the complexed metal ionic species is then made in the water split of the desliming circuit that precedes flotation. The solution chemical evidence obtained supporting such a mechanism is considerable and no finding, in this work or elsewhere, refutes it.
Applied Science, Faculty of
Mining Engineering, Keevil Institute of
Graduate
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Wood, Christopher Alan. "Theoretical investigation of polar zinc oxide surface modification via phosphonic acid self-assembled monolayers." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43584.

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The interface of a zinc-terminated polar zinc oxide surface (0002) with a series of chemisorbed fluorinated benzylphosphonic acids has been studied using density functional theory. The calculations indicate that there is a substantial change in the binding energies and work function modification depending on the binding motif. The results also indicate that there is a pronounced difference in the magnitude and trends of the factors determining the total change in work function. The oxygen core-level binding shifts have been calculated and compared to available experimental data.
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Labalme, Etienne. "Synthesis and characterizations of new fluorinated membranes bearing pendant phosphonic acid groups for PEMFC application." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2013. http://www.theses.fr/2013ENCM0013.

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Ce travail de thèse s'inscrit dans la continuité des travaux de recherche réalisés sur le développent de nouvelles membranes échangeuses de protons pour piles à combustibles de type PEMFC, porteuses de groupements protogènes acides phosphoniques. L'objectif de ces travaux est d'apporter des solutions permettant l'amélioration des propriétés physico-chimiques d'un copolymère phosphoné, le poly(CTFE-alt-VEPA) obtenu à partir de la polymérisation radicalaire de vinyl éthers et de CTFE. La première stratégie employée est une stratégie Blend. Elle consiste à ajouter un polymère fluoré commercial, le poly(VDF-co-CTFE), lors de la mise en forme de la membrane. Les membranes ainsi obtenues montrent d'excellentes propriétés mécaniques et des valeurs de conductivité protonique acceptable. Cependant, lors de l'acidification du polymère phosphoné, une légère dégradation est observée. Une nouvelle technique de réticulation a alors été mise en place afin d'augmenter la stabilité vis-à-vis des acides. La réticulation de ces membranes blend a de plus permis d'améliorer la miscibilité entre le polymère fluoré et le polymère phosphoné. Enfin, les derniers travaux de cette thèse concernent la synthèse de copolymère à bloc à partir d'une stratégie RAFT. Ainsi la polymérisation radicalaire contrôle de monomère phosphoné a pu être réalisée
This work is a continuation of research conducted on the development of new proton exchange membrane fuel cell (PEMFC), bearing phosphonic acid as protogenic groups. The aim of this work is to provide solutions with a view to improving the physicochemical properties of a phosphonate copolymer, poly(CTFE-alt-VEPA) obtained from the radical polymerization of vinyl ethers and CTFE. The first strategy used is a Blend strategy. It consists of adding a commercial fluorinated copolymer, poly(VDF-co-CTFE), during the casting of the membrane. The membranes thus obtained show excellent mechanical properties and acceptable values of proton conductivity. However, during the acidification of membrane, a slight degradation of the phosphonate copolymer is observed. A new technique of crosslinking was then established to increase the stability versus acids. The crosslinking of the blend membranes has also helped to improve the miscibility between the fluorinated copolymer and phosphonate polymer. Finally, the last work of this thesis relate to the synthesis of block copolymer from a RAFT strategy. Thus, the controlled radical polymerization of monomer phosphonated was achieved
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Helfrich, Marcus Robert. "Preliminary investigations into the development of novel layered phosphonic acid vesicles for targeted drug delivery applications /." view abstract or download file of text, 2002. http://wwwlib.umi.com/cr/uoregon/fullcit?p3045088.

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Thesis (Ph. D.)--University of Oregon, 2002.
Typescript. Includes vita and abstract. Includes bibliographical references (leaves 184-193). Also available for download via the World Wide Web; free to University of Oregon users. Address: http://wwwlib.umi.com/cr/uoregon/fullcit?p3045088.
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Wells, Christopher J. "The equilibrium characteristics of aqueous cobalt and nickel mixtures with the extractant bis-(2-ethylhexyl)-phosphonic acid." Thesis, University of Ottawa (Canada), 1991. http://hdl.handle.net/10393/7545.

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In this work, binary solutions of cobalt and nickel in aqueous ammonium sulfate solutions were extracted using a simple shake-out technique with a mixed organic phase consisting of the extractant bis-(2-ethylhexyl)phosphonic acid (PC-88A), the modifier tributyl phosphate, and the diluent Esso Varsol DX3641. It was found that the optimum pH for the separation of cobalt and nickel was 5.0, and that the separation of the ions was a complex function of the porportion of cobalt and nickel in the equilibrium phases. The maximum metal loading of the organic phase, based on the population of dimer extractant complexes was approximately 73%. Two methods, used to describe the equilibrium extraction of two or more metal ions were compared namely, the Delta Y method and the Pseudo-Gamma approach. Each of these methods account for the non-ideal interactions between mixture components. Barclay's Pseudo-Gamma relationship was found to be simpler, and correlated the data very well. (Abstract shortened by UMI.)
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Books on the topic "Phosphonic acid"

1

P, Kukharʹ V., ed. Aminophosphonic and aminophosphinic acids: Chemistry and biological activity. Chichester: Wiley, 2000.

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University, Iowa, ed. Synthesis of novel fluorinated phosphonic acid electroly for phosphoric acid fuel cells. Final report, January 1s1989-June 30, 1991. Iowa - USA: Iowa Univ., 1992.

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Frazier, A. W. Redistribution of impurities in wet-process phosphoric acid / A.W. Frzier, Y.K. Kim. Muscle Shoals, Ala: National Fertilizer Development Center, Tennessee Valley Authority, 1988.

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Federal Energy Technology Center (U.S.), ed. Phosphoric acid fuel cell commercialization. Washington, DC: U.S. Dept. of Energy, Office of Fossil Energy, Federal Energy Technology Center, 1998.

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El-Razik, Salah Mahrose Abd. Extraction of phosphoric acid from phosphateore. Salford: University of Salford, 1990.

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Hanrahan, Jane. The synthesis of substituted phosphonic acids. [s.l.]: typescript, 1995.

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J, Kohler John, and National Fertilizer & Environmental Research Center (U.S.), eds. Aluminum removal from phosphoric acid as chukhrovite. Muscle Shoals, Ala: National Fertilizer and Environmental Research Center, Tennessee Valley Authority, 1992.

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Norwood, Verrill M. Characterization of flourine-, aluminum-, silicon-, and phosphorus-containing complexes in wet-process phosphoric acid using nuclear magnetic resonance spectroscopy. Muscle Shoals, Ala: Chemical Research, Tennessee Valley Authority, National Fertilizer Development Center, 1989.

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Corrosion resistance of nickel-containing alloys in phosphoric acid (CEB-4). Toronto, Ont: Nickel Institute, 2020.

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J, Fantel R., and United States. Bureau of Mines., eds. Phosphate availability and supply: A minerals availability appraisal. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1988.

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Book chapters on the topic "Phosphonic acid"

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Bährle-Rapp, Marina. "Aminotrimethylene Phosphonic Acid." In Springer Lexikon Kosmetik und Körperpflege, 30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_506.

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Bährle-Rapp, Marina. "Diethylenetriamine Pentamethylene Phosphonic Acid." In Springer Lexikon Kosmetik und Körperpflege, 155. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_2936.

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Jyo, Akinori, Kenji Okada, Masao Tamada, Tamikazu Kume, Takanobu Sugo, and Masato Tazaki. "Bifunctional Cation Exchange Fibers Having Phosphonic and Sulfonic Acid Groups." In Chemistry for the Protection of the Environment 4, 49–62. Boston, MA: Springer US, 2005. http://dx.doi.org/10.1007/0-387-27448-0_4.

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Phuc, Dang Hoang, Thi-Hiep Nguyen, Vo Van Toi, and Phan Van Tien. "Fabrication of Hyaluronan – Chitosan – Polyvinyl Phosphonic Acid Hydrogel for Bioglue Applications." In IFMBE Proceedings, 329–31. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-11776-8_80.

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Wei, Zhang, Lu Xinchun, Liu Yuhong, Pan Guoshun, and Luo Jianbin. "Chemical Mechanical Polishing of Copper in Organic Phosphonic Acid System Slurry." In Advanced Tribology, 906–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03653-8_310.

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Paszternák, A., Ilona Felhősi, Z. Keresztes, and Erika Kálmán. "Formation and Structure of Alkyl-Phosphonic Acid Layers on Passive Iron." In Materials Science Forum, 239–46. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-426-x.239.

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Franck, Fabrice, Olga Górnicka, and Kazimierz Strzałka. "Effect of Phosphonic Acid Esters on Photoconversion of Protochlorophyllide in Barley Etioplasts." In Regulation of Chloroplast Biogenesis, 235–40. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3366-5_33.

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Tuan, Le Quoc, Dang Hoang Phuc, Vo Van Toi, and Thi-Hiep Nguyen. "Fabrication of In Situ Cross-Linking Polyvinyl Phosphonic Acid - Chitosan Hydrogel for Wound Applications." In IFMBE Proceedings, 317–20. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-11776-8_77.

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Winkelmann, Jochen. "Diffusion coefficient of P-(2-ethylhexyl)-phosphonic acid mono-(2-ethylhexyl)ester in heptane." In Diffusion in Gases, Liquids and Electrolytes, 1585. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1093.

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Zhou, Limin, Hongbin Zou, Jieyun Jin, Zhirong Liu, and Taian Luo. "Preparation of phosphonic acid-functionalized silica magnetic microspheres for uranium(VI) adsorption from aqueous solutions." In Advances in Energy and Environment Research, 103–8. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.1201/9781315212876-22.

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Conference papers on the topic "Phosphonic acid"

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Schilling, Marcia L., Howard E. Katz, Francis M. Houlihan, Janet M. Kometani, Susan M. Stein, and Omkaram Nalamasu. "Photogenerated acid-catalyzed formation of phosphonic/phosphoric acids by deprotection of esters." In SPIE's 1994 Symposium on Microlithography, edited by Omkaram Nalamasu. SPIE, 1994. http://dx.doi.org/10.1117/12.175335.

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Kovačková, Soňa, Martin Dračínský, and Dominik Rejman. "Piperidine nucleoside phosphonic acid derivatives." In XVth Symposium on Chemistry of Nucleic Acid Components. Prague: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 2011. http://dx.doi.org/10.1135/css201112372.

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Rosenberg, Ivan, Magdalena Endová-Petrová, Šárka Králíková, Radek Liboska, Dominik Rejman, and Zdeněk Točík. "From nucleoside phosphonic acids to modified oligonucleotides." In XIIth Symposium on Chemistry of Nucleic Acid Components. Prague: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 2002. http://dx.doi.org/10.1135/css200205200.

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Kočalka, Petr, Markéta Rinnová, Václav Vaněk, Dominik Rejman, Ivan Votruba, Ivana Tomečková, Šárka Králíková, et al. "Novel nucleoside phosphonic acids-based inhibitors of thymidine phosphorylase." In XIIIth Symposium on Chemistry of Nucleic Acid Components. Prague: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 2005. http://dx.doi.org/10.1135/css200507415.

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Hsu, Wei-Ling, and Pen-Cheng Wang. "Synthesis and characterization of poly(3-aminophenyl phosphonic acid)." In 2016 5th International Symposium on Next-Generation Electronics (ISNE). IEEE, 2016. http://dx.doi.org/10.1109/isne.2016.7543316.

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Rosenberg, Ivan, Ivan Barvik, Miloš Buděšínský, Petr Kočalka, Šárka Králíková, Radek Liboska, Ondřej Pačes, et al. "Nucleoside phosphonic acids and related oligonucleotides: Structural diversity vs biological properties." In XIIIth Symposium on Chemistry of Nucleic Acid Components. Prague: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 2005. http://dx.doi.org/10.1135/css200507153.

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Farquharson, Stuart, Alan Gift, Paul Maksymiuk, Frank E. Inscore, and Wayne W. Smith. "pH dependence of methyl phosphonic acid, dipicolinic acid, and cyanide by surface-enhanced Raman spectroscopy." In Optical Technologies for Industrial, Environmental, and Biological Sensing, edited by Arthur J. Sedlacek III, Richard Colton, and Tuan Vo-Dinh. SPIE, 2004. http://dx.doi.org/10.1117/12.510626.

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Nwoke, Linus, Chike Uchendu, James Arukhe, Philippe Essel, Felix Ndinemenu, Alessandra Vecchio, and Sylvester Fatusin. "Phosphonic Acid Complex for Stimulating HF-Sensitive Reservoirs - A Revolutionary Response." In SPE/DOE Symposium on Improved Oil Recovery. Society of Petroleum Engineers, 2004. http://dx.doi.org/10.2118/89415-ms.

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Pfeifer, Éva Kocsisné, Judit Telegdi, and István Gábor Gyurika. "The Effect of Heating on the Anticorrosive Self Assembled Phosphonic Acid Nanolayers." In 6th World Congress on Mechanical, Chemical, and Material Engineering. Avestia Publishing, 2020. http://dx.doi.org/10.11159/mmme20.123.

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Bjerg, Esteban, Joaquín Marchán-García, Gabriel Radivoy, Yanina Moglie, and Eduardo Buxaderas. "Organophosphorus Chemistry: Synthesis of New Phosphonic Acid Derivatives Bearing a Triazole Moiety." In ECSOC 2022. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/ecsoc-26-13585.

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Reports on the topic "Phosphonic acid"

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Wagener, Ken. Precision Morphology in Sulfonic, Phosphonic, Boronic, and Carboxylic Acid Polyolefins. Fort Belvoir, VA: Defense Technical Information Center, November 2013. http://dx.doi.org/10.21236/ada606523.

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Holcomb, Franklin H., Michael J. Binder, William R. Taylor, J. M. Torrey, and John F. Westerman. Phosphoric Acid Fuel Cells. Fort Belvoir, VA: Defense Technical Information Center, December 2000. http://dx.doi.org/10.21236/ada391823.

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Okae, I., A. Seya, and M. Umemoto. Acid distribution in phosphoric acid fuel cells. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/460205.

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Ray, R. J. Ion Chromatography Analysis of Dibutyl Phosphoric Acid. Office of Scientific and Technical Information (OSTI), December 1998. http://dx.doi.org/10.2172/4867.

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Unger, Robert J., Scott Kenner, Michael J. Binder, and Franklin H. Holcomb. Phosphoric Acid Fuel Cells Test and Evaluation. Fort Belvoir, VA: Defense Technical Information Center, October 2004. http://dx.doi.org/10.21236/ada431752.

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Pierce, R. A. Progress report on nitric-phosphoric acid oxidation. Office of Scientific and Technical Information (OSTI), November 1994. http://dx.doi.org/10.2172/10194991.

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Smith, J. R., R. A. Pierce, and E. F. Sturcken. Nitric-phosphoric acid treatment of TRU wastes. Office of Scientific and Technical Information (OSTI), September 1993. http://dx.doi.org/10.2172/10116383.

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Author, Not Given. Advanced water-cooled phosphoric acid fuel cell development. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/7039349.

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Pierce, R. A. Dibutyl Phosphoric Acid Solubility in High-Acid, Uranium-Bearing Solutions at SRS. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/4886.

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Sopok, Samuel. Determination of Phosphoric and Sulfuric Acids in Polishing Solutions by Acid-Base Titration Using a pH Meter. Fort Belvoir, VA: Defense Technical Information Center, November 1989. http://dx.doi.org/10.21236/ada216327.

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