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Relevant bibliographies by topics / Solid State Electrochemistry / Dissertations / Theses

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Dissertations / Theses on the topic 'Solid State Electrochemistry'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 April 2022

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1

Roy, Stephen Campbell. "Alkali metal beams from solid state electrochemical sources." Thesis, University of St Andrews, 1995. http://hdl.handle.net/10023/15526.

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All solid state electrochemical cells capable of producing beams of lithium, sodium and potassium in ultrahigh vacuum have been developed and investigated. The evolution of alkali metal vapour has been demonstrated by deposition of the metal on a substrate during polarisation of the cell followed by ex-situ analysis of the metal using laser ionisation mass analysis (LIMA). The electrochemistry of alkali metal evolution from these unusual solid state cells has been investigated using cyclic voltammetry, chronoamperometry and AC impedance measurements at pressures of 10−3 mbar and 10−8 mbar (UHV

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2

Nakagawa, Yasue. "Protein electrochemistry : applications of sonovoltammetry, microelectrode voltammetry and solid-state voltammetry." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325772.

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3

Simmonds, Michael C. "Synthesis of platinum and platinum alloy thin films and a study of their electrochemistry." Thesis, University of Salford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308459.

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4

Yin, Yijing. "An Experimental Study on PEO Polymer Electrolyte Based All-Solid-State Supercapacitor." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/440.

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Supercapacitors are one of the most important electrochemical energy storage and conversion devices, however low ionic conductivity of solid state polymer electrolytes and the poor accessibility of the ions to the active sites in the porous electrode will cause low performance for all-solid-state supercapacitors and will limit their application. The objective of the dissertation is to improve the performance of all-solid-state supercapactor by improving electrolyte conductivity and solving accessibility problem of the ions to the active sites. The low ionic conductivity (10-8 S/cm) of poly(eth

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5

Grenier, Antonin. "Development of solid-state Fluoride-ion Batteries : cell design, electrolyte characterization and electrochemical mechanisms." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066128/document.

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Les batteries tout-solides à ions fluorures reposent sur l'échange réversible d'ions F- entre un métal et un fluorure métallique au travers d'un électrolyte solide. Ces dispositifs électrochimiques peuvent théoriquement permettre l'obtention de fortes densités énergétiques, bien supérieures à celles des batteries conventionnelles Li-ion commerciales. En conséquence, les batteries à ions F- suscitent un fort engouement. Dans ce contexte, une partie de nos travaux ont portés sur le développement d'une cellule permettant d'évaluer leurs performances. De plus, les propriétés électrochimiques de l'

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6

Wu, Jing. "Conductance Switching of Carbon Based Molecular Heterojunctions." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1227844170.

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7

Chiabrera, Francesco Maria. "Interface Engineering in Mixed Ionic Electronic Conductor Thin Films for Solid State Devices." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/667601.

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Interface-dominated materials such as nanocrystalline thin films have emerged as an enthralling class of materials able to engineer functional properties of transition metal oxides widely used in energy and information technologies. In this direction, it has been recently proved that grain boundaries (GBs) in the perovskite La1-xSrxMnO3±δ (manganite) deeply impact its functional properties, boosting the oxygen mass transport while abating the electronic and magnetic order. The impact of grain boundary in nanocrystalline thin films is so relevant to radically change the behaviour of the materia

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8

Sheehan, Stafford Wheeler. "Atomic Layer Deposition Synthesis and Photoelectrochemical Charge Behavior in Tungsten, Iron, and Titanium Oxide Heterostructures." Thesis, Boston College, 2011. http://hdl.handle.net/2345/2203.

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Thesis advisor: Dunwei Wang<br>This thesis explores new approaches to synthesizing and understanding photoanodes for water splitting. By tuning materials' mophology on the nanoscale, their ability to absorb light energy and efficiently convert it in to chemical energy is improved. This is evident by an increase in photocatalytic efficiency and can be demonstrated with visible light sensitive catalysts. Production of these materials involved the development of alternative synthesis routes for traditional water splitting catalysts. Our hypothesis is further supported by probing charge dynamics u

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9

Fee, Michele. "Electrochemical Investigation of Thin Nickel, Copper and Silver Films Interfaced with Yttria-Stabilized Zirconia." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24360.

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The electrochemical investigation of nickel, copper and silver thin films interfaced with yttria stabilized zirconia (YSZ) solid electrolyte was accomplished to determine their response to polarization in dilute oxygen environments at 350 °C and assess their viability for electrochemical promotion of catalysis (EPOC). Polycrystalline YSZ (8 mol % Y2O3-ZrO2) pellets were synthesized in the lab and films deposited onto them using evaporative physical vapor deposition (PVD). The critical thickness of copper, silver and nickel thin films were foundusing in-situ resistance measurements. Following t

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10

Salles, Corinne. "Performance et vieillissement de membranes céramiques à transport d'oxygène." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2018. http://www.theses.fr/2018ENCM0001/document.

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Les membranes à transport d’oxygène (OTM) sont des membranes céramiques denses qui sont capables de transporter l’oxygène de manière totalement sélective à travers un gradient de pression partielle d’oxygène. Elles peuvent être utilisées pour diminuer les émissions de gaz à effet de serre dans le cadre de la capture et du stockage du CO2 ou pour augmenter l’efficacité de l’oxydation partielle du méthane. La semi-perméabilité de l’oxygène est proportionnelle à la conductivité ambipolaire du matériau. Cependant, les OTM avec des conductivités ambipolaires élevées sont plus susceptibles de se dég

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11

Pfaff, Ulrike, Grzegorz Filipczyk, Alexander Hildebrandt, Marcus Korb, and Heinrich Lang. "1,3,5-Triferrocenyl-2,4,6-tris(ethynylferrocenyl)-benzene – a new member of the family of multiferrocenyl-functionalized cyclic systems." Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-152459.

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The consecutive synthesis of 1,3,5-triferrocenyl-2,4,6-tris(ethynylferrocenyl)benzene (6c) is described using 1,3,5-Cl3-2,4,6-I3-C6 (2) as starting compound. Subsequent Sonogashira C,C cross-coupling of 2 with FcC[triple bond, length as m-dash]CH (3) in the molar ratio of 1 : 4 afforded solely 1,3,5-Cl3-2,4,6-(FcC[triple bond, length as m-dash]C)3-C6 (4c) (Fc = Fe(η5-C5H4)(η5-C5H5)). However, when 2 is reacted with 3 in a 1 : 3 ratio a mixture of 1,3,5-Cl3-2-(FcC[triple bond, length as m-dash]C)-4,6-I2-C6 (4a) and 1,3,5-Cl3-2,4-(FcC[triple bond, length as m-dash]C)2-6-I-C6 (4b) is obtained. Ne

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12

Huynh, Le Thanh Nguyen. "Les accumulateurs au sodium et sodium-ion, une nouvelle génération d’accumulateurs électrochimiques : synthèse et électrochimie de nouveaux matériaux d’électrodes performants." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1123/document.

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Les accumulateurs au lithium jouent un rôle important comme source d'alimentation pour les appareils électroniques portables en raison de leur forte capacité gravimétrique et volumétrique et leur haute tension. En outre, la technologie lithium-ion est la mieux placée pour une application à grande échelle, telle que le véhicule électrique, ce qui pose un problème de ressource et à terme, de coût. Une des réponses envisagées sur le plan économique et environnemental est le développement d’accumulateurs sodium-ion. Dans tous les cas, le problème scientifique consiste à proposer des matériaux d’in

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13

Pilli, Aparna. "Atomic Layer Deposition of Boron Oxide and Boron Nitride for Ultrashallow Doping and Capping Applications." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1752373/.

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The deposition of boron oxide (B₂O₃) films on silicon substrates is of significant interest in microelectronics for ultrashallow doping applications. However, thickness control and conformality of such films has been an issue in high aspect ratio 3D structures which have long replaced traditional planar transistor architectures. B₂O₃ films are also unstable in atmosphere, requiring a suitable capping barrier for passivation. The growth of continuous, stoichiometric B₂O₃ and boron nitride (BN) films has been demonstrated in this dissertation using Atomic Layer Deposition (ALD) and enhanced ALD

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14

Assat, Gaurav. "Anionic redox for high-energy batteries. Fundamental understanding, practical challenges, and future outlook." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS396.

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Notre dépendance croissante vis-à-vis des batteries lithium-ion pour le stockage d’énergie exige une amélioration de leurs électrodes positives, qui fonctionnent encore grâce au redox cationique des métaux de transition. L’émergence du redox anionique – une approche transformationnelle qui double la capacité des électrodes positives « Li-riches » – a récemment suscité de grands espoirs mondialement. Toutefois, des questions subsistent sur les origines fondamentales du redox anionique et sur son potentiel dans les applications pratiques. Cette thèse vise à répondre précisément à ces questions,

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15

Griffith, Kent Joseph. "Atomic and electronic structure of complex metal oxides during electrochemical reaction with lithium." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/271191.

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Lithium-ion batteries have transformed energy storage and technological applications. They stand poised to convert transportation from combustion to electric engines. The discharge/charge rate is a key parameter that determines battery power output and recharge time; typically, operation is on the timescale of hours but reducing this would improve existing applications and open up new possibilities. Conventionally, the rate at which a battery can operate has been improved by synthetic strategies to decrease the solid-state diffusion length of lithium ions by decreasing particle sizes down to t

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16

Moorhead-Rosenberg, Zachary. "Magnetic, electronic, and electrochemical properties of high-voltage spinel cathodes for lithium-ion batteries." Thesis, 2015. http://hdl.handle.net/2152/31329.

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Lithium-ion technology has revolutionized the electronics and electric vehicle industry in the past two decades. First commercialized by Sony in 1991, the lithium-ion battery is composed of three main components: (i) the cathode, (ii) the anode, and (iii) the electrolyte. Graphitic carbon remains the most widely used anode material due to its low voltage vs. the Li/Li+ redox couple and high specific capacity. However, there are several popular cathode materials, including layered oxides, spinel oxides, and polyanion materials. In an effort to increase the energy density of lithium-ion batteri

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17

Ellis, Brian. "Synthesis, Electrochemistry and Solid-Solution Behaviour of Energy Storage Materials Based on Natural Minerals." Thesis, 2013. http://hdl.handle.net/10012/7398.

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Polyanionic compounds have been heavily investigated as possible electrode materials in lithium- and sodium-ion batteries. Chief among these is lithium iron phosphate (LiFePO4) which adopts the olivine structure and has a potential of 3.5 V vs. Li/Li+. Many aspects of ion transport, solid-solution behaviour and their relation to particle size in olivine systems are not entirely understood. Morphology, unit cell parameters, purity and electrochemical performance of prepared LiFePO4 powders were greatly affected by the synthetic conditions. Partially delithiated olivines were heated and stud

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18

Goli, V. M. L. Durga Prasad. "Studies on Frustrated Spin Chains and Quasi-One-Dimensional Conjugated Carbon Systems." Thesis, 2014. http://hdl.handle.net/2005/3030.

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In this thesis, we investigate the entanglement and magnetic properties of frustrated spin systems and correlated electronic properties of conjugated carbon systems. In chapter 1, we present different approaches to solve the time-independent, nonrelativistic Schr¨odinger equation for a many-body system. We start with the full non-relativistic Hamiltonian of a multi nuclear system to describe the Born - Oppenheimer approximation which allows the study of electronic Hamiltonian which treats nuclear positions parametrically. We then also describe ab initio techniques such as the Hartree-Fock Meth

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19

Das, Shyamashis. "Materials Chemistry in Search of Energy Materials : Photovoltaics and Photoluminescence." Thesis, 2016. http://hdl.handle.net/2005/2820.

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One third of world’s total energy is used in production of electricity and one fifth of the total electricity produced in the world is used in lighting. Hence, the materials that have high potential in the field of photovoltaic’s and photoluminescence have recently drawn special attention to meet the ever increasing energy demands. In this thesis, we have studied a few materials that hold tremendous promises in fabricating photovoltaics and photoluminescent devices. Any ferroelectric material is an efficient solar energy converter as it contains an the intrinsic dipolar field which can effecti

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20

Laha, Sourav. "Exploring Transition Metal Oxides Towards Development of New Functional Materials : Lithium-ion Battery Cathodes, Inorganic Pigments And Frustrated Magnetic Perovskite Oxides." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2712.

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Transition metals (TMs) are ‘elements whose atoms have partially filled d-shell, or which can give rise to cations with an incomplete d-shell’. In TMs, the d-shell overlaps with next higher s-shell. Most of the TMs exhibit more than one (multiple) oxidation states. Some TMs, such as silver and gold, occur naturally in their metallic state but, most of the TM minerals are generally oxides. Most of the minerals on the planet earth are metal oxides, because of large free energies of formation for the oxides. The thermodynamic stability of the oxides is determined from the Ellingham diagram. Ellin

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21

Lubera, Justyna. "Wykorzystanie elektrokatalitycznego przeniesienia elektronu w układzie jod/jodki do przygotowania elektrolitów redoks zdolnych do szybkiej propagacji ładunku." Doctoral thesis, 2020. https://depotuw.ceon.pl/handle/item/3809.

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Niniejsza rozprawa doktorska została poświęcona tematyce poszukiwania układów elektrokatalitycznych zdolnych do szybkiego przeniesienia elektronu w parze redoks jod/jodki i ich wykorzystania do przygotowania elektrolitów redoks zdolnych do szybkiej propagacji ładunku, co ma niezwykle istotne znaczenie w funkcjonowaniu barwnikowych sensybilizowanych ogniw słonecznych (DSSC), baterii przepływowych (RFB) czy superkondensatorów hybrydowych. Przedstawiona praca ma układ klasyczny, współtworzony przez część literaturową i eksperymentalną. Rozpoczyna się ona od ogólnej charakterystyki elektrochemiczn

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