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Dissertations / Theses on the topic 'Alkaline material'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

GENTILE, ANTONIO. "MXene-based materials for alkaline-ion batteries: synthesis, properties, applications." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/382748.

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La produzione sempre maggiore di dispositivi portatili e auto elettriche chiede al mercato di produrre dispositivi efficienti in grado di poter accumulare l’energia elettrica. Per questo tipo di tecnologie in cui la miniaturizzazione del dispositivo è essenziale, le batterie litio ione (LIBs) sono diventate il mezzo di accumulare energia. La ricerca su queste batterie è focalizzata ad ottenere dispositivi sempre più performanti con materiali elettrodici ad alte capacità gravimetriche e volumetriche. Accanto all’aspetto tecnologico, legato alla ottimizzazione dei materiali, vi è anche quello de

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2

Kane, Steven Daniel. "Degradation of cellulosic material by Cellulomonas fimi." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10049.

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The world stocks of fossil fuels are dwindling and may be all but out before the end of the century. Despite this there is increasing demand for them to be used for transport, and the ever increasing green house gases which their use produces. Renewable and less environmentally damaging forms of fuel are needed. Biofuels, particularly bioethanol, are a possibility to subsidise or replace fossil fuels altogether. Ethanol produced from fermentation of starch sugars from corn are already in wide use. As this bioethanol is currently produced from crops such as corn and sugar cane, that puts fuel c

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3

Jia, Jingshu. "Fabrication of high quality one material anode and cathode for water electrolysis in alkaline solution /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202008%20JIA.

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4

Lacerda, Roseli Sengling. "Caracterização química, bioquímica e físico-química da torta de mamona para seu aproveitamento na produção de material biodegradável e na alimentação animal." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/74/74131/tde-19032013-150847/.

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Atualmente, há um grande incentivo governamental para a produção de biodiesel a partir de óleo de mamona. O aumento na fabricação desse óleo irá aumentar a produção de torta de mamona, que tem grande potencial de emprego na tecnologia de material biodegradável e utilização na alimentação animal, se destoxificada. Os objetivos desta tese foram a caracterização química da torta de mamona, a extração de suas proteínas para desenvolvimento de material biodegradável, e a caracterização do resíduo sólido do processo de extração, visando seu uso na alimentação animal. A extração das proteínas da tort

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5

Vinnakota, Keerthi. "Chemical Recycling of Poly (Ethylene Terephthalate) and its Co-polyesters with 2, 5-Furandicarboxylic Acid using Alkaline Hydrolysis." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1535106967389994.

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6

Janák, Petr. "Sledování trvanlivosti FRP kompozitních materiálů (kompozitů s dlouhovláknovou výztuží a polymerní matricí)." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227182.

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This diploma thesis deals with evaluation of the conditions for laboratory testing of composite profiles with fiber-reinforced polymer (FRP). Theoretical part describes the main material properties of FRP profiles and method of manufacturing by pultrusion. Experimental part evaluates imposition of the test samples in alkaline environment and their subsequent changes in physical properties. Next part contains evaluation of cuts FRP profiles by electron microscopy in combination with element analysis. The outcome of this work is the method of evaluation of accelerated durability FRP profiles.

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7

Pereira, Adriana Maria. "Avaliação do uso da cinza do bagaço de cana-de-açúcar na produção de aglomerantes ativados alcalinamente /." Ilha Solteira, 2019. http://hdl.handle.net/11449/181173.

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Orientador: Jorge Luís Akasaki<br>Resumo: Nos últimos anos, tem havido um crescente interesse em substituir parcialmente ou totalmente o uso do cimento Portland por materiais com baixo impacto ambiental; logo o estudo de aglomerantes ativados alcalinamente obtidos a partir da mistura de um precursor sólido, rico em aluminossilicato, e uma solução alcalina de alta concentração, tem se mostrado uma alternativa viável, uma vez que o consumo de energia e a emissão de CO2 durante a produção dessas matrizes são reduzidas, e ainda, ocorre a possibilidade de inserção de subprodutos agroindustriais, na

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8

Máca, Tomáš. "Modifikace hydroxidu nikelnatého pro zlepšení jeho elektrochemických vlastností v alkalických akumulátorech." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-233682.

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Commercial alkaline accumulators with positive electrode based on nickel hydroxide generally comprise beta modification of the active material at present due to its excellent stabilization of performance during electrochemical cycling. This dissertation refers to a research work accomplished by author, which has been aimed to utilization of alpha nickel hydroxide in alkaline batteries including exploration of possibilities to attain its stability in strong alkali medium of the electrolyte. I have focused my effort to elucidate reasons for its transformation tendency and to find way of their su

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9

Chen-Tan, Nigel W. "Geopolymer from a Western Australian fly ash." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/1900.

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Ordinary Portland cement is utilised worldwide as a mainstay construction material. Worldwide consumption of cement in 2009 was estimated to be 2.8 billion tonnes, which unfortunately equates to the production of 2.8 billion tonnes of CO[subscript]2 via the sintering procedure required to produce cement clinkers. With worldwide concern over climate change, this value is a substantial contribution to greenhouse gas emission.Fly ash is a by-product of coal combustion from thermoelectric power stations. World production of fly ash was estimated at 600 million tonnes with only 9% utilisation (Kaya

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10

FIORE, MICHELE. "Nanostructured Materials for secondary alkaline ion batteries." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/262348.

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Thanks to their superior energy and power density, lithium-ion batteries (LIBs) currently dominate the market of power sources for portable devices. The economy of scale and engineering optimizations have driven the cost of LIBs below the 200 $/KWh at the pack level. This catalyzed the market penetration of electric vehicles and made them a viable candidate for stationary energy storage. However, the rapid market expansion of LIBs raised growing concerns about the future sustainability of this technology. In particular, lithium and cobalt supplies are considered vulnerable, primarily because o

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11

Li, Ruihua. "Devitrification behaviour of alkaline-earth silicate fibre." Thesis, Sheffield Hallam University, 1997. http://shura.shu.ac.uk/19960/.

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The alkaline-earth silicate fibres are a new generation of man-made insulation materials. The materials are amorphous on manufacture and have been shown to be soluble in physiological solutions and to be cleared from the lung in animal exposure trials. This reported study provides a thorough investigations of the devitrification behaviour of Superwool X-607 (Morgan Materials Technology), and two further compositions, code names A2 and B3.Thermal exposures were made within the region extending from 700 to 1250°C and 10 minutes to 3240 hours in clean furnace environments. The devitrified mic

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12

Ganesan, Parameshwari. "Investigation of Luminescent Properties in Rare-Earth free Metallophosphonate Hybrid Materials : structural Insights in photophysical studies." Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMC266.

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Durant ce travail de thèse, les propriétés structurelles et photoniques des metallophosphonates luminescents hybrides ont été étudiées en abordant le rôle de leur structure dans les propriétés luminescentes. Les métallophosphonates possèdent différentes coordinations chimiques montrant leurs capacités à former plusieurs centres métalliques ainsi qu’une forte liaison chimique de type P-O-M. L’objective de ce travail est l’étude des matériaux hybrides organiques-inorganiques luminescents dont le composant organique offre une plateforme solide facilement amovible avec divers groupes fonctionnels.

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13

Samuelsson, Jörgen. "Development of Methods for Phase System Characterization in Liquid Chromatography." Doctoral thesis, Uppsala universitet, Ytbioteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8597.

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The aim of this thesis is first and foremost to improve the fundamental knowledge of nonlinear and preparative separation theory by focusing on some of the remaining “white spots” on the theoretical chromatographic map. Secondly, the acquired knowledge is used to develop, validate and execute new methods for phase characterization in liquid chromatography. The methodology used in this thesis is a combination of experiments, fundamental nonlinear theory and systematic computer simulations. A fundamental knowledge of the molecular interactions between the compounds to be separated and the separa

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14

Nesvaderani, Farhang. "Modification of MnO₂-based cathode materials for rechargeable alkaline batteries." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/62860.

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15

Pavasars, Ivars. "Characterisation of organic substances in waste materials under alkaline conditions /." Linköping : Tema, Univ, 1999. http://www.bibl.liu.se/liupubl/disp/disp99/arts196s.htm.

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16

Kaylor, Rosann Matthews. "The high-temperature, alkaline degradation of a new cellulose model compound." Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/27286.

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17

Teng, Weijie Ruhlandt-Senge Karin. "From polymerization initiators to precursors for solid-state materials syntheses and structures of a series of molecular alkali and alkaline earth metal derivatives /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2004. http://wwwlib.umi.com/cr/syr/main.

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18

Pagot, G. "Electrode and electrolyte materials for the development of high voltage lithium-ion batteries and secondary batteries based on alkali and alkaline-earth ions." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3426843.

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The research activity described in this thesis has been focused on the development and study of novel electrolyte and electrode materials for application in Lithium and Magnesium secondary batteries. The proposed materials belong to the “beyond Li-ion” class of compounds, where systems exceeding the energy density values of classic Li-ion batteries or completely innovative chemistries are presented. Three different classes of electrolytes have been prepared and studied. A solid polymer electrolyte has been obtained by a lithium functionalization of a poly(vinyl alcohol-co-vinyl acetate), form

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19

Bradwell, David (David Johnathon). "Liquid metal batteries : ambipolar electrolysis and alkaline earth electroalloying cells." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/62741.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 198-206).<br>Three novel forms of liquid metal batteries were conceived, studied, and operated, and their suitability for grid-scale energy storage applications was evaluated. A ZnlITe ambipolar electrolysis cell comprising ZnTe dissolved in molten ZnCl 2 at 500 0C was first investigated by two- and three-electrode electrochemical analysis techniques. The electrochemical behavior of the melt, thermodynamic

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20

Lau, Chee Keong. "Investigation on alkali activated materials: Materials to structures." Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/84508.

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The material and structural characteristics of alkali activated materials were investigated. A mix design framework was proposed to consider the reactive composition of raw materials, with the mixes obtained optimised by the statistical method and curing regime. Subsequently, alkali activated concrete was examined in torsion and fatigue. Alkali activated concrete in torsion correlates well with the existing model for conventional concrete. A new testing methodology was proposed for the testing of concrete pavements in fatigue.

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21

Bidault, Fabrice. "Development of alkaline fuel cell gas diffusion cathodes using new substrate materials." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5663.

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Hydrogen, as a clean and renewable fuel, may play a key role in the near future because of the increasing cost of fossil fuels and the impact of CO2 on the climate. Fuel cells are electrochemical devices which directly convert chemical energy stored in hydrogen into electrical energy at high efficiency with only water and heat as byproducts. A leading candidate fuel cell technology for operation on hydrogen fuels is the proton exchange membrane fuel cell (PEMFC). But today its commercialization remains limited, mainly because of the price of the materials used for electrode manufacture. Cataly

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22

Molina, García Miguel Ángel. "Graphene-derived materials as oxygen reduction catalysts in alkaline conditions for energy applications." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8871/.

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Graphene is a relatively new carbon material increasingly finding technological applications due to its unique physical and engineering properties. Here, its application as catalyst for the oxygen reduction reaction (ORR) in alkaline media is investigated. First, the role of graphene-related materials (including multi-walled carbon nanotubes) as catalyst supports is compared to the widely used carbon black, finding that the ORR follows a mixed behaviour between the direct 4-electron pathway and the indirect 2-step mechanism on graphene-supported platinum catalysts. Further, different combinati

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23

Laracy, Michael Edward. "Valorization of boiler ash in alkali activated material." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99582.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 97-102).<br>For centuries the clay fired brick has been the most popular building material in India due to its local availability and low cost. Despite the growing demand for bricks, some negative environmental and social impacts surrounding its production raise concerns about its future use. In parallel, a growth in industry is generating a number of industrial wastes, such as boiler ash, which are

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24

Ojedokun, Olalekan. "Durability properties of an alkali activated cementitious material." Thesis, Sheffield Hallam University, 2018. http://shura.shu.ac.uk/21933/.

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25

Quader, M. M. A. "Improvement of the alkaline delignification of wood and nonwood raw materials for pulp production /." Åbo : Åbo akademi university, 2003. http://catalogue.bnf.fr/ark:/12148/cb40116564x.

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26

Pickrell, Gary Robert. "High temperature alkali corrosion kinetics of low expansion ceramics /." This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-163208/.

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27

Flídrová, Michaela. "Studium účinnosti plastifikačních přísad v souvislosti s povrchovou chemií systému alkalicky aktivované strusky." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-444210.

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Alkali-activated materials (AAM) are construction materials with great potential, especially for their environmental friendliness, but also due to their mechanical properties. Therefore, it is appropriate to pay further attention to these binders. This diploma thesis deals with monitoring the effectiveness of plasticizers in connection with the surface chemistry of the alkali-activated slag system. Sodium hydroxide and sodium water glass were used as alkaline activators for the preparation of alkali-activated blast furnace slag-based systems. To study the effectiveness of the lignosulfonate pl

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28

Langová, Markéta. "Účinek plastifikátorů na chování a vlastnosti alkalicky aktivovaných materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2017. http://www.nusl.cz/ntk/nusl-316430.

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Alkali activated materials could be suitable alternative to construction materials based on ordinary Portland cement (OPC). Therefore, it is advisable to pursue these binders further on. Aim of this thesis is to clarify the effect of lignosulfonate-based plasticizer and polycarboxylate-based superplasticizer on the behaviour and nature of alkali activated materials. For the purposes of studying the efficiency of plasticizing additives, the change of workability of alkali activated blast furnace slag in dependence on time, effect of additives on mechanical properties as well as, with usage of i

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29

Yin, Zhewen. "Non-precious Metal Catalysts for Oxygen Reduction Reaction in Alkaline Solutions." Scholar Commons, 2018. http://scholarcommons.usf.edu/etd/7250.

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Mesoporous WO3 powders were prepared via sol-gel processing synthesis using nonionic surfactant Pluronic (P-123) as the template. The influences of heating temperature on the pore structure and properties of WO3 powders were investigated. Three kinds of modifications were compared and evaluated after finding out the best heating condition. Different amount of lanthanum was doped into mesoporous WO3 to improve its Oxygen Reduction Reaction (ORR) activity. Several factors contributing to the increase of catalytic performance were discussed. Vulcan carbon powder was also used as a support to incr

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30

Li, Zihui. "Acid Leaching Resistance and Alkali Silica Reaction (ASR) of Alkali-Activated Cement Free Binders." Thesis, Clarkson University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10640300.

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<p> Recently, increased awareness of the significance of developing sustainable materials for construction has renewed the interest in exploring Alkali activated concrete (AAC), a concrete that contains no cement, but only industrial by-products such as fly ash and slag, as a low energy alternative to the conventional concrete. Although the feasibility of making alkali–activated concrete with acceptable strength and mechanical properties is well documented, the information regarding the long-term durability, including resistance to acid attack and alkali silica reaction (ASR), is far fro

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31

Reinhold, Catherine Janey. "Reduced species in alkali metal loaded framework materials." Thesis, University of Birmingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289728.

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32

Bordeian, Georgeta Simona. "Characterisation and properties of alkali activated pozzolanic materials." Thesis, Sheffield Hallam University, 2000. http://shura.shu.ac.uk/19371/.

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Many of the waste materials produced from modem heavy industries are pozzalans, which develop cementitious properties when finely divided in the presence of free lime. This property allows a potential industrial use for this waste as a cement replacement material in concrete. An example of such a waste material is blast furnace slag from the smelting of iron and steel. The US produces 26 million tons of blast furnace slag annually. Most of the slag is slowly cooled in air and it makes a poor pozzolan. Only 1.6 million tons of the slag is available in the granulated form, which is suitable as a

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33

Moraes, João Cláudio Bassan de. "Study on sugar cane straw ash (SCSA) in alkali-activated binders /." Ilha Solteira, 2017. http://hdl.handle.net/11449/152101.

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Orientador: Jorge Luís Akasaki<br>Resumo: Aglomerantes ativados alcalinamente (AAA) são obtidos da combinação de um precursor solido (geralmente um aluminosilicato) e uma solução alcalina de alta concentração. As vantagens de utilizar este novo tipo de aglomerante comparado ao cimento Portland, um aglomerante convencional, são as menores emissões de CO2, menor consumo de energia e a possibilidade de utilizar matérias prima renováveis e/ou resíduos. Neste sentido, este trabalho apresenta um novo resíduo da indústria da cada de açúcar: a folha de cana de açúcar. A folha apresenta um poder calorí

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34

O'Brien, Anna Yosick. "Advances in the design of heavy alkaline earth metal complexes as precursors for chemical vapor deposition." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2005. http://wwwlib.umi.com/cr/syr/main.

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35

Siong, Victor [Verfasser]. "Research and optimizations of iron composites as negative electrode materials for aqueous alkaline batteries / Victor Siong." Ulm : Universität Ulm, 2019. http://d-nb.info/1183099711/34.

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Ren, Yufu. "Microwave Assisted Synthesis of Alkaline Earth Phosphate Coating and its Applications for Biomedical Implants." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1513204146096617.

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37

Ravindran, Naveenkamal. "Durability of E-glass fiber reinforced vinyl ester polymer composites with nanoclay in an alkaline environment." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4209.

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Thesis (M.S.)--West Virginia University, 2005.<br>Title from document title page. Document formatted into pages; contains vii, 54 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 51-52).

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38

Stjernberg, Jesper. "Degradation of mullite based materials by alkali containing slags." Licentiate thesis, Luleå : Division of Engineering Materials, Luleå University of Technology, 2008. http://epubl.luth.se/1402-1757/2008/41.

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Zhang, Zhihao. "The Development of Three Dimensional Porous Nickel Materials and their Catalytic Performance towards Oxygen Evolution Reaction in Alkaline Media." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40636.

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As the global energy crisis and environmental pollution problem continues, there is an increasing demand for clean and sustainable energy storage and conversion technologies, such as water-splitting electrolysis. Water electrolysis is a process of running an electrical current through water in separating the hydrogen and oxygen. Oxygen evolution reaction (OER) is a key reaction in this electrochemical process, and the electrochemical performance of these systems is usually hindered by the slow OER reaction kinetics. In order to achieve high energy conversion efficiency, the development of effi

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40

Sakulich, Aaron Richard Barsoum M. W. "Characterization of environmentally-friendly alkali activated slag cements and ancient building materials /." Philadelphia, Pa. : Drexel University, 2010. http://hdl.handle.net/1860/3209.

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Hopkins, A. D. "Group 15/alkali metal complexes and applications to photoemissive materials." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604223.

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The research presented in this thesis falls into four related areas. The synthetic approach used in all studies was the stepwise deprotonation of primary amines and phosphines with Group 15 dimethylamido reagents to produce heterobimetallic Group 15/alkali metal complexes. The principal aim was to examine the decomposition of these species, potentially into photoemission alkali metal antimonate layers. After an initial introduction (Chapter 1) detailing previous methods of synthesis of imido heterobimetallic complexes and photodiode materials, there follows an experimental section (Chapter 2)

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Persson, Kajsa. "High temperature corrosion on heat exchanger material exposed to alkali salt deposits." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-104121.

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Power generation through decentralized small scale CHP would facilitate the use of biomass as an energy source, with the externally fired gas turbine (EFGT) being a promising technology due to its high electrical efficiency. In an EFGT hot flue gases are heat-exchanged with an air cycle, driving the turbine. The operation requires higher flue gas temperatures than other technologies, for example steam turbines, to achieve optimal performance. The operating conditions subjects the high temperature heat exchanger (HT-HE) to both physical and chemical stress, with the corrosion related issues ye

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43

Björquist, Stina. "Separation for regeneration : Chemical recycling of cotton and polyester textiles." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12388.

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In 2015, 96.7 million tonnes of textile fibres were produced world-wide. Our high consumption of textiles leads to an increased amount of textile waste. In Sweden, the majority of used clothing and textiles are incinerated due to the lack of recycling techniques. A large amount of post-consumer textile waste is made from blended materials. One of the most common blends, used in as near as all workwear and service textiles, is cotton/polyester. To enable chemical recycling of such textiles, cotton and polyester must first be separated. The aim of this thesis was to separate the materials by dep

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44

Blasco, Ahicart Marta. "Earth Abundant Materials for Electrocatalytic Water Oxidation: Enhancing Efficiency and Robust Performance in Acidic, Neutral and Alkaline Media." Doctoral thesis, Universitat Rovira i Virgili, 2017. http://hdl.handle.net/10803/457706.

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En aquesta tesi doctoral presentem diferents estratègies per al desenvolupament d’elèctrodes, basats en elements abundants en l’escorça terrestre, actius en l’oxidació electrocatalítica de l’aigua en diferents medis. En primer lloc, hem precipitat el clúster [Co9(H2O)6(OH)3(HPO4)2(PW9O34)3]16− (Co9) amb Ba2+ i Cs+ per obtindre sals insolubles en aigua que poden ser mesclades amb una matriu conductora, com la pasta de carboni. Els elèctrodes de BaCo9 presenten una activitat excel·lent en medi àcid, combinada amb 100% d’eficiència Faradàica i estabilitat a llarg termini. En segon lloc, el clúste

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45

Renman, Agnieszka. "On-site wastewater treatment : Polonite and other filter materials for removal of metals, nitrogen and phosphorus." Doctoral thesis, KTH, Mark- och vattenteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4811.

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Bed filters using reactive materials are an emerging technology for on-site wastewater treatment. Chemical reactions transfer contaminants from the aqueous to the solid phase. Phosphorus is removed from domestic wastewater by sorption to filter materials, which can then be recycled to agriculture as fertilisers and soil amendments. This thesis presents long-term column and field-scale studies of nine filter materials, particularly the novel product Polonite®. Phosphorus, nitro-gen and metals were removed by the mineral-based materials to varying degrees. Polonite and Nordkalk Filtra P demonstr

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Shearer, Christopher R. "The productive reuse of coal, biomass and co-fired fly ash." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52298.

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Stricter greenhouse gas emission limits and renewable energy requirements are expected to further increase the worldwide practices of firing biomass and co-firing biomass with coal, which are both considered more sustainable energy sources than coal-only combustion. Reuse options for the by-products of these processes -biomass ash and co-fired fly ash -remain limited. Therefore, this research examines their use as supplementary cementitious materials (SCMs) in concrete and as precursors for alkali-activated geopolymers. Toward their potential use as an SCM, after characterizing these ashes as

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Matts, Ian Lawrence. "Multi-redox active polyanionic cathodes for alkali-ion batteries." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104108.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 121-139).<br>In order for alkali-ion batteries to gain widespread adoption as the energy storage technology of choice for transportation and grid applications, their energy must be improved. One key step towards this necessary improvem

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Hall, David Scott. "An Electrochemical and Spectroscopic Investigation of Nickel Electrodes in Alkaline Media for Applications in Electro-Catalysis." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31627.

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Nickel-based catalysts in aqueous alkaline media are low-cost electrode materials for electrolytic hydrogen generation, a renewable method of producing fuel and industrial feedstock. However, further work is necessary to develop inexpensive electro-catalyst materials with high activity and long-term stability. This thesis employs spectroscopic and electrochemical methods to directly address specific research problems for the development of improved materials and devices with commercial or industrial value. The first chapter reviews the applications of nickel electrodes; the structures of nicke

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Bjartnes, Erik. "Oxygen evolution on La1-xSrxCoO3 Pellet-Electrodes in alkaline Solution : Charge Carrier density dependence of electrocatalytic activity." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18901.

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Alkaline water electrolysis need a catalyst with low overpotential and high current densitiy for oxygen evolution in order to be a commercial viable hydrogen source in the future. Finding and establishing a correlation between electrocatalytic activity and charge carrier density will help towards finding an optimum catalyst for this purpose. Such comparisons have been made using theoretical values for charge carrier density, but the aim of this work is to use charge carrier data from experimental values.Five powders of La<sub>1-x</sub>Sr<sub>x</sub>CoO<sub>3</s

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Kang, ShinYoung. "Ab initio prediction of thermodynamics in alkali metal-air batteries." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/89952.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 93-100).<br>Electric vehicles ("EVs") require high-energy-density batteries with reliable cyclability and rate capability. However, the current state-of-the-art Li-ion batteries only exhibit energy densities near ~150 Wh/kg, limiting the long-range driving of EVs with one charge and hindering their wide-scale commercial adoption.1-3 Recently, non-aqueous metal-O₂ batteries have drawn attention due to

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