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Добірка наукової літератури з теми "Microbalance électrochimique à cristal de quartz"
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Статті в журналах з теми "Microbalance électrochimique à cristal de quartz"
Bizet, K., C. Gabrielli, H. Perrot, and J. Thérasse. "La microbalance à quartz électrochimique: perspectives d'application en biologie médicale." Immuno-analyse & Biologie Spécialisée 10, no. 4 (January 1995): 205–11. http://dx.doi.org/10.1016/0923-2532(96)80528-x.
Повний текст джерелаDe Sousa, Cristina, Lisbeth Manganiello, Antonio Millán, Cristóbal Vega, and Wladimir Yanez-Vergara. "Diseño y caracterización de un sistema de respuesta rápida basado en detección piezoeléctrica." Revista Ingeniería UC 28, no. 3 (December 29, 2021): 418–27. http://dx.doi.org/10.54139/revinguc.v28i3.43.
Повний текст джерелаHumbert, Claude, Vincent Walter, Najib Kacem, and Thérèse Leblois. "Towards an Ultra Sensitive Hybrid Mass Sensor Based on Mode Localization without Resonance Tracking." Sensors 20, no. 18 (September 16, 2020): 5295. http://dx.doi.org/10.3390/s20185295.
Повний текст джерелаDeniz, Merve, and Hüseyin Deligöz. "Flexible self-assembled polyelectrolyte thin films based on conjugated polymer: Quartz cristal microbalance dissipation (QCM-D) and cyclic voltammetry analysis." Colloids and Surfaces A: Physicochemical and Engineering Aspects 563 (February 2019): 206–16. http://dx.doi.org/10.1016/j.colsurfa.2018.12.014.
Повний текст джерелаPAUPORTÉ, Thierry, and Daniel LINCOT. "Microbalance à cristal de quartz." Techniques d'analyse, December 2006. http://dx.doi.org/10.51257/a-v1-p2220.
Повний текст джерелаJiménez-Arellano, Juan Jesús, José Lorenzo Muñoz-Mata, Severino Muñoz-Aguirre, and Sergio Orres-Méndez. "Estudio del comportamiento de sensores de gas basados en resonadores de cristal de cuarzo para altas frecuencias." Revista de Innovación Sistemática, June 30, 2019, 29–37. http://dx.doi.org/10.35429/jsi.2019.10.3.29.37.
Повний текст джерелаДисертації з теми "Microbalance électrochimique à cristal de quartz"
Kaabi, Walid. "Etude des interactions cadmium-or par microbalance électrochimique à cristal de quartz et rétrodiffusion de Rutherford." Châtenay-Malabry, Ecole centrale de Paris, 2007. http://www.theses.fr/2007ECAP1046.
Повний текст джерелаAmong metallic thin layer synthesis process, Electrodeposition is known to allow a good structural and dimensions control. Unlike others techniques, proceeding at room temperature permit to electrodeposition to avoid intermetallic compounds formation when a strong interaction exists between substrate and metal deposited. However, electrochemical studies made last years, shown that, for some system, interdiffusion between metal and substrate can occur even at room temperature, leading to the formation of a surface alloy. In this study, we present some results of electrodeposition study of cadmium on gold and on platinum. Deposition, as well as dissolution process, was controlled by Electrochemical Quartz Crystal Microbalance (EQCM) and Rutherford Backscattering Spectrometry (RBS). Results show that for both systems, deposition start at UPD (Under Potential Deposition), but different processes occur during deposition and dissolution. For the Electrodeposition of Cd on Au, a step of Cd-Au alloy formation is observed at the end of UPD region and still progress in OPD (Over Potential Region). Thus, dissolution process turns out to be complicated and leads to a partial redissolution of Cd deposited. On the contrary, the Electrodeposition of Cd on Pt is reversible with the total removal of Cd during the redissolution process
Wu, Yih-Chyng. "Etude des mécanismes de stockage de charge dans les matériaux destinés aux applications de stockage d'énergie électrochimique via l'utilisation de la microbalance électrochimique à quartz (EQCM)." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30326.
Повний текст джерелаReducing the consumption of fossil fuels and developing renewable and sustainable energy sources have been considered to be effective strategies to tackle the climate change crisis. To address such issues, more efficient electrical energy conversion and storage devices are required.1 The most commonly used electrochemical energy storage technologies today are batteries and supercapacitors. Batteries store the energy through faradaic reactions of electrode materials with electrolytes, providing high energy supplement, with energy densities of few hundreds of Wh kg-1.2 By contrast, supercapacitors, termed as electrochemical double-layer capacitors (EDLCs), store the charge at the electrode/electrolyte interface, via an electrostatic charge separation by physical ion adsorption/desorption process; it is making supercapacitor exhibits a higher power density and long cycling life energy device.3 EDLCs have the key role of filling the gap between batteries and capacitors due to their very high power densities (15 kW kg-1) and moderate energy densities (8 Wh kg-1).4 In this thesis, the main focus is to understand the charge storage mechanisms of EDLCs by using in situ electrochemical quartz crystal microbalance (EQCM). Electrochemical quartz crystal microbalance (EQCM) has been used as an in situ gravimetric probe for the investigation ion dynamics in porous carbon-based electrode.5-6 The first part of the thesis includes a bibliographic study, which gives us a deep understanding regarding the theories and development of EDLCs. The charge storage mechanisms of EDLCs will be covered thoroughly, based on the up-to-date theoretical and experimental aspects. Then, the thesis will go through the basic concepts of the experimental equipment and materials. The first part of the result is an EQCM study of three-dimensional porous carbon electrode. The main charge carriers were identified by in situ EQCM in multi-ion aqueous electrolytes during ion transfer and adsorption in carbon micropores. The results are explained based on ion size, ion mobility and pH range. The following part of the result aims to study the ion responses on two-dimensional carbon material. Single layer graphene (SLG) was used as a two-dimensional platform as a model material for mimicking the interactions of ions from an electrolyte with a carbon surface without the interference of the porosity. The SLG was successfully transferred onto the quartz electrode using a proprietary method, so that in situ EQCM enable to record the ion dynamics nearby the carbon/electrolyte interface, and in the case of two different electrolytes: a neat ionic liquid and an ionic liquid used as a salt dissolved in a solvent. The last part is dedicated to the application of EQCM on different materials for energy storage. Pseudocapacitve and battery materials, such as Ti3C2Tx MXene pseudocapacitive material and CaV6O16 as Ca-ion battery cathode material were also tested using EQCM technique as a high rate performance electrode material. The charge storage mechanisms of each materials are investigated detailly in this chapter. The approach of this thesis demonstrates that EQCM is an efficient tool provides a direct molecular-level insight into the charge storage process for different energy storage materials. It shows a great potential to be served as an electrogravimetric probe to monitor the ion and solvent molecule fluxes occurring at the electrode/electrolyte interface upon polarization
Portail, Nicolas. "Mesures électrochimiques locales pour l'étude de la corrosion du fer par piqûre." Paris 6, 2007. https://tel.archives-ouvertes.fr/tel-00825618.
Повний текст джерелаGautier, Christelle. "Développement de supports polythiophène conducteurs pour l'immobilisation d'ADN, la détection électronique de l'hybridation et la libération locale de gènes." Phd thesis, Université du Maine, 2006. http://tel.archives-ouvertes.fr/tel-00192830.
Повний текст джерелаDans une première partie, une nouvelle fonction d'ancrage électroactive a été validée permettant l'immobilisation de molécules sondes par simple condensation d'amines dans des conditions douces. Cette approche autorise un diagnostic électrochimique de l'environnement moléculaire au voisinage de l'interface faisant de ces matrices des supports actifs dans la transduction du signal. Ainsi, nous montrons comment, par l'examen des modifications des propriétés de conduction du polymère, il est possible d'établir la présence ou l'absence d'un brin d'ADN complémentaire dans le milieu d'étude. Par ailleurs, un suivi par microbalance à cristal de quartz des différentes étapes de modification du support a permis de valider ces évènements.
Le développement de dispositifs autorisant leur emploi comme outils d'analyses ou comme outils thérapeutiques laisse entrevoir la perspective de diagnostiquer et de réparer des anomalies génétiques responsables du disfonctionnement des protéines. Aussi, dans une deuxième partie, nous présentons des résultats obtenus avec un poly(cyclopentadithiophène) modifié par un groupement électroactif connecté à la chaîne principale par une chaîne conjuguée. La spécificité de cette matrice permet l'immobilisation d'ADN ainsi que la libération électrochimiquement contrôlée en milieu physiologique.
Dochter, Alexandre. "Polymer films and brushes self-construction by electrochemically triggered morphogens." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAE039/document.
Повний текст джерелаPolyelectrolyte multilayers, i.e. self-assembled systems based on successive polycation and polyanion adsorptions, constitute interesting materials for surface functionalization. These coatings possess several limitations: they are weak towards chemical and mechanical constraint and their buildup is long and tedious. Recently, a new method based on the self-construction of films by the means of a morphogen (a catalyst gradient generated from a surface) has attracted attention since it allows the quick self-assembly of robust films. Nevertheless, this technique was quite limited to peculiar systems based on click chemistry or on host-guest interactions.This present work generalize the one-pot morphogenic approach to other systems. In the first place, polymer brushes were built up from a surface by ATRP polymerization. The Cu(I) catalyst (the morphogen) was electrochemically generated at the interface.The morphogenic approach was later used to buildup polyelectrolytes and polyampholyte films in a one-pot manner by electrochemically generating protons (the morphogens) at the interface. These films exhibited an enzymatic activity
Kengne-Momo, Rosine Pélagie. "Mise en oeuvre des surfaces spécifiques en vue de la détection de bactéries pathogènes par diffusion Raman." Phd thesis, Université du Maine, 2011. http://tel.archives-ouvertes.fr/tel-00604221.
Повний текст джерелаChao, Yanjia. "Détermination du pouvoir entartrant de l’eau d’un circuit via l’utilisation d’une microbalance électrochimique a quartz ultrasensible." Paris 6, 2013. http://www.theses.fr/2013PA066273.
Повний текст джерелаThe scaling phenomenon could cause serious economic and technical problems to the cooling circuits of nuclear power plants. The objective of this work is to develop an original method, which allows rapid and in situ evaluation of the scaling potential of water. Such method should play a preventive role for optimal monitoring of the scaling risk. Three methods to test water scaling potential were examined and compared in this study: the method of Fast Controlled Precipitation (FCP), the method of electrochemical Quartz Crystal Microbalance (electrochemical QCM) and an original method of the pre-calcified microbalance (E-QCM-E). Indicative factors obtained by these three methods, which are representative of water scaling potential, were analyzed and compared. Based on the results of the experiments on synthetic waters of controlled quality, a relationship was established between water scaling potential and chosen indicative factors for each method. These three methods have also been coupled with X-ray Diffraction measurements, Scanning Electron Microscopy and Infrared Spectroscopy, in order to characterize the deposit formed by different methods and with different synthetic waters. The comparison between these three methods shows that the E-QCM-E method possesses advantages over the FCP method and the electrochemical QCM method, which can carry out in situ measurements, on a short time scale, with a nice sensitivity, of the water scaling potential. A first group of experiments was also conducted that coupled the SAXS measurements (Small Angle X ray Scattering) with the FCP method for finer understanding of the mechanism of calcium carbonate formation and precipitation. During these experiments in situ calcium carbonate nano clusters in metastable water were observed and characterized, before the homogeneous precipitation, which could probably play an important role in the scaling phenomenon as precursors
Cassiède, Marc. "Développement d’une technique de microbalance à cristal de quartz pour la mesure de propriétés thermophysiques de fluides sous pression." Pau, 2010. http://www.theses.fr/2010PAUU3022.
Повний текст джерелаThe topic of this thesis is the development of a quartz crystal microbalance technique under pressure in order to study the phase and rheological behaviour of complex viscoelastic systems, and particularly extra-heavy oils. After the validation of the experimental device by measuring phase transition temperatures of waxy model systems, we turned to the study of viscoelastic systems by means of impedance analysis. For this purpose, we have integrated a network analyzer which allows to determine both resonance frequency and dissipation, as well as the comparison of these parameters on several harmonics. These parameters give access to the acoustic impedance of the resonant system and then the material properties (mass and shear modulus) can be deduced. The first results showed an important deviation from theoretical behaviour on the first overtones and particularly on the fundamental mode. Thus, a deep study of the electrical behaviour of AT-cut quartz resonators has been carried out to understand the deviations obtained on the fundamental harmonic mode. Then, we have characterized in detail the effect of pressure on the electrical impedance of these quartz sensors. Finally, we have shown that the phenomena of roughness and slipping must be taken into account accurately for future rheological investigations
To, Thi Kim Loan. "Etude de films électroactifs par couplage de techniques électrochimique et gravimétrique : application à la caractérisation de membranes à conduction protonique." Paris 6, 2009. https://hal.archives-ouvertes.fr/tel-01086589.
Повний текст джерелаTrachli, Bouchra. "Étude sur la corrosion du cuivre en milieu NaCl 0,5M et sa protection par des inhibiteurs organiques et des films polymères obtenus par électropolymérisation." Paris 6, 2001. http://www.theses.fr/2001PA066484.
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