Relevant bibliographies by topics / Electrosynthesis / Dissertations / Theses
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Dissertations / Theses on the topic 'Electrosynthesis'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Smith, James Richard. "Electrosynthesis of novel polyheterocycles." Thesis, University of Portsmouth, 1995. https://researchportal.port.ac.uk/portal/en/theses/electrosynthesis-of-novel-polyheterocycles(3e3e0712-3b50-4ca5-a56e-f06585a8d592).html.

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2

Peacock, Martin James. "The electrosynthesis of diaryliodonium salts." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326302.

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3

Cox, Philip. "Electrosynthesis on non-metal electrodes." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252664.

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4

Watkins, John D. "Enhancing triple phase boundary electrosynthesis." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.547876.

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The first part of this thesis is concerned with the synthesis, characterisation and applications of surface functionalised carbon nanoparticles. Synthetic techniques are used to modify the existing surface architecture of carbon nanoparticles towards high surface area modified electrodes and pH sensing applications. Electrochemical and synthetic techniques have been used to study triple phase boundaries and enhance their properties towards a bulk synthetic technique, in which an electrolyte phase and redox probe phase are held separate. A salt matrix, ultrasound, high shear force and a carbon
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5

Belmont, Cecile. "Coplanar interdigitated band electrodes for electrosynthesis." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/13940.

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The behaviour of coplanar cathodic and anodic band electrodes was investigated and their use for standard syntheses was proven to be considerably advantageous, when compared to other techniques. Electrode arrays were fabricated by screen printing platinum, silver or carbon inks. The inter-electrode distances were in the range 1 mm to 250μm for a constant band width of 1 mm. The mass transport was characterised for different inter-electrode distances and flow conditions. Figures compared positively with other cells. Two acceptable mathematical models were derived for the estimation of the resis
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6

Monti, Marco <1984&gt. "Electrosynthesis and characterization of structured catalysts." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4781/1/TESI_Marco_Monti.pdf.

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In this research work the optimization of the electrochemical system of LDHs as catalytic precursors on FeCrAlY foams was carried out. Preliminary sintheses were performed on flat surfaces in order to easily characterize the deposited material. From the study of pH evolution vs time at different cathodic potentials applied to a Pt electrode, the theoretical best working conditions for the synthesis of single hydroxides and LDH compounds was achieved. In order to define the optimal potential for the synthesis of a particular LDH compound, the collected data were compared with the interval o
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7

Monti, Marco <1984&gt. "Electrosynthesis and characterization of structured catalysts." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4781/.

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In this research work the optimization of the electrochemical system of LDHs as catalytic precursors on FeCrAlY foams was carried out. Preliminary sintheses were performed on flat surfaces in order to easily characterize the deposited material. From the study of pH evolution vs time at different cathodic potentials applied to a Pt electrode, the theoretical best working conditions for the synthesis of single hydroxides and LDH compounds was achieved. In order to define the optimal potential for the synthesis of a particular LDH compound, the collected data were compared with the interval o
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8

Hayati, Burhan. "Mass transfer characteristics of adiponitrile multiphase electrosynthesis." Thesis, Teesside University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385888.

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9

Lai, Min. "Templated electrosynthesis of nanomaterials and macroporous structures." Thesis, University of Bristol, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441665.

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10

Thomson, Alastair David. "The electrosynthesis and characterisation of functionalised polyindoles." Thesis, University of Edinburgh, 1997. http://hdl.handle.net/1842/13118.

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The aim of the work presented in this thesis was to investigate the electropolymerisation of indole and various substituted indole monomers, with the objective of electrosynthesising, characterising and functionalising indole-based conducting polymers for possible use as sensor devices. It was found that on electropolymerisation, all of the substituted indole monomers studied formed asymmetric cyclic trimer species. A mechanism was proposed invoking a 3-3' dimer intermediate to explain the nature of the trimer formed. These trimers were believed to initially form in solution and then deposit o
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11

Fotsing, Kamte Marcellin M. "Electrosynthesis and mechanism of copper(I) nitrile complexes." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=974106666.

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12

Pornputtkul, Yingpit. "Development of chiral conducting polymers for asymmetric electrosynthesis." Access electronically, 2005. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060522.113926/index.html.

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13

Scienza, Lisete. "Electrosynthesis and characterisation of polypyrrole films on aluminium." Thesis, University of Manchester, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681336.

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14

Kalu, Eric Egwu. "Simultaneous electrosynthesis of alkaline hydrogen peroxide and sodium chlorate." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/28391.

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Simultaneous electrosynthesis of alkaline hydrogen peroxide and sodium chlorate in the same cell was investigated. The alkaline hydrogen peroxide was obtained by the electroreduction of oxygen in NaOH on a fixed carbon bed while the chlorate was obtained by the reaction of anodic electrogenerated hypochlorite and hypochlorous acid in an external reactor. An anion membrane, protected on the anode side with an asbestos diaphragm was used as the separator between the two chambers of the cell. The effects of superficial current density (1.2 - 2.4 kA m⁻²), sodium hydroxide concentration (0.5 - 2.0
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15

Szanto, Dominic A. "Characterisation of electrochemical filter-press reactors." Thesis, University of Portsmouth, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286086.

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16

Nguyen, Tu Ngoc. "Electrosynthesis and characterization of main group and transition metal oxides." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/11949.

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17

Omweri, James Mokaya. "Electrosynthesis of Lithium Borohydride from Trimethyl Borate and Hydrogen Gas." Youngstown State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1577718541596251.

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18

Valdes, E. M. "Studies of the Ce(III)/Ce(IV) couple in multiphase media." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380041.

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19

Batlle, Vilanova Pau. "Bioelectrochemical transformation of carbon dioxide to target compounds through microbial electrosynthesis." Doctoral thesis, Universitat de Girona, 2016. http://hdl.handle.net/10803/399148.

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In 2015 the average concentration of CO2 in the atmosphere exceeded 400 ppm. Some technologies, including CO2 capture and storage, are palliative. However, the development of alternatives to burning of fossil fuels focuses on the base of the problem and proposes substantial changes in the energy model. This thesis proposes the use of bioelectrochemical systems to transform CO2 into valuable products. This process is known as microbial electrosynthesis, and is based on the use of bacteria able to use the electrode as an electron donor (biocathode) to drive CO2 reduction. The results show that t
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20

Lisi, Fabrizio. "Microbial electrosynthesis of industrially viable chemicals from carbon dioxide and electricity." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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This master thesis reflected the work done during the internship at Laboratory of Chemical and Environmental Engineering (LEQUIA), a research group of the University of Girona. The research study dealt with biotechnological platforms for CO2 recycling and valorization. In two lab-scale H-type reactors industrially valuable chemicals were produced through microbial electrosynthesis (MES), using only carbon dioxide and electricity. The work was focused on investigating conditions and experimental parameters triggering chain elongation process in MES applications. Plus, the effect of several fact
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21

Patel, Anish P. "The electrochemical activation and incorporation of carbon dioxide into organic molecules." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14424.

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The consumption of large quantities of fossil fuels on a yearly basis for energy purposes has led to the release of vast quantities of carbon dioxide into the Earth s atmosphere leading to global warming. In order to decrease the amount of carbon dioxide entering the atmosphere, procedures such as carbon dioxide capture and storage are currently being implemented, although this process is successful in decreasing atmospheric carbon dioxide concentration it results in the mindless storage of an otherwise synthetically useful reagent. The development of a viable method to capture carbon dioxide,
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22

Trinidad, Pedro. "Fluid flow, mass transport and electrosynthesis studies in filter-press electrochemical reactors." Thesis, University of Portsmouth, 2001. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.766481.

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23

Karlsson, Rasmus. "Theoretical and Experimental Studies of Electrode and Electrolyte Processes in Industrial Electrosynthesis." Doctoral thesis, KTH, Tillämpad elektrokemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177025.

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Heterogeneous electrocatalysis is the usage of solid materials to decrease the amount of energy needed to produce chemicals using electricity. It is of core importance for modern life, as it enables production of chemicals, such as chlorine gas and sodium chlorate, needed for e.g. materials and pharmaceuticals production. Furthermore, as the need to make a transition to usage of renewable energy sources is growing, the importance for electrocatalysis used for electrolytic production of clean fuels, such as hydrogen, is rising. In this thesis, work aimed at understanding and improving electroca
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24

Starykevich, Maksim. "Electrosynthesis of 1-D metallic nanoparticles from DES using porous anodic templates." Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/21694.

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Doutoramento em Ciência e Engenharia de Materiais<br>O método de síntese de nanoparticulas 1-D assistido por um modelo tornou-se um tópico em voga na química após o desenvolvimento de filmes anódicos com poros bem ordenados. Contudo, a maioria dos trabalhos nesta área tem sido feita utilizando filmes porosos destacados devido à presença de uma barreira no fundo dos poros. No entanto, esta estratégia segue demasiados passos, o que aumenta o seu custo, torna mais difícil a execução e impõe várias limitações. Consequentemente, existe a necessidade de uma técnica que permita o enchimento (electrof
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25

Dang, Xuan Dung. "Electrosynthesis and characterization of thin copolymer films based on pyrrole and thiophene derivatives." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2005. http://nbn-resolving.de/urn:nbn:de:swb:14-1125491701029-31683.

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Die Copolymerisation wurde mit dem Ziel untersucht, polymere Materialien zu synthetisieren, die die individuellen Eigenschaften der entsprechenden Homopolymere kombinieren. Die Dissertation konzentrierte sich auf die Elektrosynthese und Charakterisierung von leitfähigen Copolymerfilmen auf Basis von Pyrrol- und Thiophenderivaten. Mit einer Reihe von elektrochemischen, spektroskopischen und mikroskopischen Untersuchungsmethoden (Zyklovoltammetrie, elektrochemische Impedanz-spektroskopie, photoelektrochemische Spektroskopie, Elektrospray- Ionisations-Massenspektroskopie, Festkörper- NMR, Raman-S
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26

Meyer, Tjark Hannes [Verfasser]. "Merging Electrosynthesis with 3d Transition Metal-Catalyzed C–H Transformations / Tjark Hannes Meyer." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2021. http://d-nb.info/123763346X/34.

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27

Al-Salih, T. "The electrosynthesis of metal complexes from the molecular substrates, N2̲, H2̲, CO and isocyanides." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377062.

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28

Folgueiras, Amador Ana Alicia. "Design and manufacture of an electrochemical flow reactor, and its application in organic electrosynthesis." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/110661/.

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Organic electrosynthesis is recognised as a green enabling methodology to perform reactions in an efficient and straightforward way. Electrons are used as the reagent to form anion and cation radical species from neutral organic molecules achieving oxidations and reductions by replacing toxic and dangerous reagents. Within this field, the use of microreactors in continuous flow is also concurrent with electrochemistry because of its convenient advantages over batch, such as: i) low loading or no supporting electrolyte at all, due to the small distance between electrodes, providing significant
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29

Musella, Elisa <1992&gt. "Newly developed electrosynthesis of Layered Double Hydroxides: application to sensing, energy storage and conversion." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9603/1/Tesi%20Musella.pdf.

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Layered Double hydroxides (LDHs) have been widely studied for their plethora of fascinating features and applications. The potentiostatic electrodeposition of LDHs has been extensively applied in the literature as a fast and direct method to substitute classical chemical routes. However, it does not usually allow for a fine control of the M(II)/M(III) ratio in the synthesized material and it is not suitable for large anions intercalation. Therefore, in this work a novel protocol has been proposed with the aim to overcome all these constraints using a method based on potentiodynamic synthesis.
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30

Li, Winton. "Hydrogen peroxide electrosynthesis in solid polymer electrolyte (spe) reactors with and without power co-generation." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62136.

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For applications that require small amounts of H₂O₂ or have economically difficult transportation means, an alternate, on-site H₂O₂ production method to the current industrial anthraquinone auto-oxidation process is needed. Thus far neutral production of H₂O₂ has been limited to bench-top laboratory scaled research with low yield of H₂O₂ [1]. To produce neutral H₂O₂ on-site and on-demand for drinking water purification, the electroreduction of oxygen at the cathode of a solid polymer electrolyte (SPE) cell could be a possible solution. The work presented here has utilized a SPE cell operati
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31

Eiras, Carla. "Eletrossíntese e propriedades ópticas e morfológicas de filmes de poli-p-fenileno e derivados." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-11112013-150338/.

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Nesta tese, estudamos a eletrossíntese de polímeros conjugados eletroluminescentes no azul. Filmes de poli(p-fenileno) (PPP), co-poli(p-fenileno-pirrol) (CPPI) e co-poli(p-fenileno-3-metiltiofeno) (CFMET) foram preparados por voltametria cíclica em eletrodos de vidro condutor (ITO) em uma solução não-aquosa de acetonitrila e perclorato de tetrabutilamônio contendo os monômeros e pares de co-monômeros a diferentes concentrações. Durante a síntese dos filmes de PPP, CPPI e CP3MET, a célula eletroquímica foi posicionada dentro de uma caixa seca contendo CaCl2 como agente secante e em atmosfera de
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32

Tietje-Girault, J. "The influence of cell design and electrolysis parameters on the electrosynthesis of carboxylic acids from carbon dioxide and 1,3-butadiene." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374585.

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33

Soler, Salas Sergio. "Reacciones de arilación promovidas electroquímicamente." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/461158.

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La reducción catódica de 4-fluorobenzonitrilo, 4-yodobenzonitrilo, 4-cianofenil triflato, 4--yodonitrobenceno, 3--yodonitrobenceno, 2--yodonitrobenceno y yodobenceno en DMF/Benceno (20/80)+0.6 M Bu4NBF4, durante una electrolisis en discontinuo y en un solo paso a temperatura ambiente, da lugar al producto de acoplamiento cruzado correspondiente: 4-fenilbenzonitrilo, 4--fenilnitrobenceno, 3--fenilnitrobenceno, 2--fenilnitrobenceno y bifenilo con rendimientos de bajos a moderados. El mecanismo propuesto, investigado por voltametría cíclica, y análogamente a lo descrito en ausencia de benceno, im
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34

Boriosi, Lorenzo. "Preparazione di catalizzatori strutturati per la reazione di ossidazione parziale del metano." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6084/.

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Questo lavoro di tesi ha avuto come obiettivo la preparazione di catalizzatori attivi nella reazione di ossidazione parziale catalitica, CPO, del metano per produrre gas di sintesi. I catalizzatori sono stati preparati tramite sintesi elettrochimica di composti di tipo idrotalcite a base di Rh/Mg/Al utilizzando come supporto schiume metalliche costituite da FeCrAlY. L’impiego di questo tipo di supporto comporta una serie di vantaggi, dallo sviluppo del catalizzatore all’ottimizzazione del processo catalitico in termini di prestazioni catalitiche, diminuzione degli “hot spots” termici, diminuz
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35

Oliveira, Barbara de. "Estudo eletroquimico do efeito de surfactantes na eletrogeração de peroxido de hidrogenio." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265249.

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Orientador: Rodnei Bertazzoli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-08T23:20:02Z (GMT). No. of bitstreams: 1 Oliveira_Barbarade_M.pdf: 510349 bytes, checksum: 9d4dd8bbac953e65a290c93e04ed8aee (MD5) Previous issue date: 2007<br>Resumo: Este trabalho apresenta o estudo do comportamento dos surfactantes catiônicos cloreto de tricaprilmetilamônio (Aliquat® 336) e cloreto de metiltributilamônio (Aliquat® 175) na eletrossíntese de peróxido de hidrogênio. Inicialmente, foram realizados experimentos de m
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36

Cassidy, Kevin D. "Electrosynthesis of Hydrogen Peroxide in an Acidic Environment with RuO2 as a Water Oxidation Catalyst & Silver Nanoparticles in Zeolite Y: Surface Enhanced Raman Spectroscopic (SERS) Studies." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1292365863.

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37

Davis, Jake Ryan. "Production of Expendable Reagents from Raw Waters and Industrial Wastes." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/344216.

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A couple of processes for electrosynthetic production of expendable reagents, namely acids, bases, and oxidants, from the native salt content of raw waters and industrial wastes were investigated, and the composition of mixed acids and bases made of sodium sulfate or sodium chloride salts were predicted using a model predicated on conservation principles, mass action relations, and Pitzer equations. Electrodialysis with bipolar membranes (BMED) was used to produce acids and bases in a single pass. Product concentration was limited only by the salt content of the feed water. The current efficie
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Bouvet, Sébastien. "Vers l'introduction douce de groupes fluorés émergents oxygénés et soufrés." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLV007/document.

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Les travaux s’articulent autour du développement de nouveaux agents de fluoration et sur l’étude de leurs réactivités au cours de différentes réactions.Dans une première partie, nous décrivons la synthèse de nouvelles sources réactives de fluorure à partir de liquides ioniques de type imidazolium possédant un fluor en partie anionique. Les deux liquides ioniques [bmim][F] et [bdmim][F] obtenus ont ensuite été testés dans différents processus de monofluoration et de fluorodésulfuration oxydative.Une deuxième partie concerne le développement de réactifs de trifluorométhoxylation.Dans un premier
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Blasco, Gómez Ramiro. "Steering CO2 bio-electrocycling into valuable compounds through inline monitoring of key operational parameters." Doctoral thesis, Universitat de Girona, 2020. http://hdl.handle.net/10803/670848.

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Microbial Electrochemical Technologies (METs) are a promising alternative for capturing and in-situ reducing CO2 through the use of renewable electricity. Microorganisms grown in autotrophic conditions use CO2 as an electron acceptor and an electrode provides them electrons in the form of electricity. In this process, known as microbial electrosynthesis (MES), different compounds are produced depending on the metabolic possibilities of the microorganisms present in the system. The potential of this technology is high: a culture enriched with selected electroactive microorganisms is able to eff
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OLIVEIRA, Jadson de Lira. "Eletrossíntese de 2,2’- bipiridinas e 3,3’- bipiridazinas em célula eletroquímica de cavidade composta de nanotubos de carbono e grafite em pó." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/16899.

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Blanchet, Elise. "Conception d'un procédé d'électrosynthèse microbienne." Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/15853/1/Blanchet_elise.pdf.

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L’électrosynthèse microbienne est une technologie innovante qui permet de convertir le dioxyde de carbone en molécules organiques en utilisant une cathode comme source d’électrons de la réduction microbienne du CO2. Le procédé «Biorare» propose de coupler l’électrosynthèse microbienne avec l’oxydation de déchets à l’anode afin d’augmenter le rendement énergétique du procédé. Il devient ainsi possible de traiter un effluent à l’anode et de valoriser du CO2 à la cathode. La thèse a eu pour objectif d’améliorer les performances de la bioanode et de la biocathode séparément, afin de réaliser in fi
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Urgin, Karene. "Préparation de dérivés aryl- et hétéroaryl- pyridazine(s) par voies organométalliques chimiques ou électrochimiques." Thesis, Paris Est, 2010. http://www.theses.fr/2010PEST1094.

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Les hétérocycles aromatiques sont des motifs structuraux rencontrés dans un grand nombre de substances d'intérêts biologiques ou pharmacologiques. Plus particulièrement, les pyridazines substituées font l'objet d'un intérêt grandissant pour leurs propriétés pharmaceutiques (antibactériens, anti-inflammatoires, médicaments cardiovasculaires…). De plus, les structures comportant des pyridazines peuvent également être utilisées en tant qu'agents chélatants de cations métalliques et s'ordonner en édifices utilisés en chimie supramoléculaire.Nous nous sommes donc intéressés à l'élaboration d'élémen
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SOUZA, Ronny Francisco Marques de. "Acoplamento eletroquímico de Haletos Alilícos e Prenílicos com Aldeídos e Cetonas em cátodo de pó de grafita." Universidade Federal de Pernambuco, 2014. https://repositorio.ufpe.br/handle/123456789/16581.

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PASSOS, Sergio Gonçalves Batista. "Desenvolvimento de um método eletroquímico para síntese aquosa de pontos quânticos em célula de cavidade." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/17384.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-07-14T16:14:49Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DissertSergioPassos32abntCD.pdf: 3127165 bytes, checksum: e4b607e29cf477a0026a7c45e1d7d953 (MD5)<br>Made available in DSpace on 2016-07-14T16:14:49Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DissertSergioPassos32abntCD.pdf: 3127165 bytes, checksum: e4b607e29cf477a0026a7c45e1d7d953 (MD5) Previous issue date: 2015-01-16<br>FACEPE<br>Neste trabalho fo
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Nogueira, Fred Augusto Ribiero. "Síntese e caracterização eletroquímica de derivados de polipirrol para aplicação em dispositivos eletrocrômicos e capacitores." Universidade Federal de Alagoas, 2014. http://www.repositorio.ufal.br/handle/riufal/2179.

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In this research were studied electrochemical properties of films polypyrrole, poly[(12-pyrrol-1’yldodecanoic acid)], poly[1-(3-brominepropylpyrrole)], poly[1-(3-iodinepropylpyrrole) and poly[4-(3-pyrrolyl)butyric acid] prepared by electrochemical methods and deposited onto Indium Tin doped Oxide. The polymers were obtained from the electrochemical deposition methods potentiodynamic, potentiostatic and galvanostatic and characterized by electrochemical and spectroscopic techniques. The polypyrrole and poly [4 - (3-pyrrolyl) butyric acid] showed capacitive behavior as poly[(12-pyrrol-1’yl dode
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46

Gonçalves, Camila dos Santos. "Redução eletroquímica de cinamatos de metila orto-substituídos." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-03102006-205141/.

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Neste trabalho são descritas a síntese e a redução eletroquímica em DMF de alguns cinamatos de metila substituídos no anel aromático. O objetivo deste estudo foi verificar a influência de vários substituintes sobre o curso da reação de eletro-hidrodimerização (EHD). Os substratos utilizados foram os o-metil- (1), o-cloro- (2), o-nitro- (3), m,p-dicloro- (4), m-cloro- (5) e p-cloro- (6), m-nitro- (7), o-metoxicarbonil- (8) cinamatos de metila. As técnicas empregadas foram a voltametria cíclica (verificação dos potenciais de redução) e eletrólises preparativas a potencial controlado. Quando o s
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47

Valim, Ricardo Bertholo. "Estudo do comportamento eletroquímico de carbono Printex 6L modificado com 2-terc-butil-9,10-antraquinona e 2-etil-9,10-antraquinona para a eletrogeração de H2O2 em meio ácido." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/75/75135/tde-01032013-141330/.

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Neste trabalho foi estudado o comportamento eletroquímico de materiais à base de carbono Printex 6L, sem e com a adição de compostos orgânicos da classe das quinonas (2-terc-butil-9,10-antraquinona (TBA) e 2-etil-9,10-antraquinona (EA)) para a produção de peróxido de hidrogênio (H2O2) a partir da reação de redução do oxigênio gasoso (O2). Na primeira etapa, foi utilizada a técnica de microcamada porosa depositada sobre um eletrodo de disco/anel rotatório, sendo que a partir dos resultados obtidos foram confeccionados eletrodos de difusão gasosa (EDG) para a eletrogeração de H2O2. Os melhores r
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Wang, Shaopeng. "Part I. Spirodienones via a thermal (1,3) oxygen to carbon migration ; Part II. Spirodienones via a photochemical (1,3) oxygen to carbon migration ; Part III. Mechanistic studies on the anodic oxidation of 3,4-dimethoxybenzene and the electrosynthesis.. /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487686243821522.

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Aït, Lyazidi Hamida. "Electrosyntheses organiques a partir d'acides carboxyliques hydroxyles." Paris 6, 1993. http://www.theses.fr/1993PA066288.

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Cette these a ete consacree a l'etude des reactions d'electrosynthese a partir d'acides-alcools, principalement derives des sucres. La premiere partie concerne la reduction electrochimique des groupes carboxyliques en aldehyde en milieu aqueux. La transformation de l'acide salicylique en salicylaldehyde avec une electrode de mercure a ete reprise et optimisee. Les resultats obtenus ont ete appliques a la reduction des acides gluconique et galactonique en glucose et galactose. Les rendements sont restes modestes. La deuxieme partie concerne l'oxydation des groupes hydroxyles en du groupement ca
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Zhang, Lin. "Co-immobilisation du complexe (2,2'-bipyridyl) (pentaméthylcyclopentadiényl)-rhodium et de déshydrogénases NAD-dépendantes pour l’électrosynthèse enzymatique énantiosélective." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0283/document.

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Dans ce travail, nous avons développé différentes méthodes pour la co-immobilisation sur des électrodes poreuses de carbone de déshydrogénases NAD-dépendantes avec le complexe (2,2'-bipyridyle)(pentaméthylcyclopentadiényl)-rhodium ([Cp*Rh(bpy)Cl]+) pour des applications de synthèse électroenzymatique d’alcools et de sucres chiraux. L'objectif était d'éviter la dégradation de l'activité enzymatique provenant de l'interaction entre les groupes fonctionnels de surface de l'enzyme (-SH, -NH2) et le complexe [Cp*Rh(bpy)Cl]+, et également de permettre le recyclage des catalyseurs. L’électrogreffage
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