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Relevant bibliographies by topics / Aluminum hydrolysis

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Dissertations / Theses

Academic literature on the topic 'Aluminum hydrolysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Dissertations / Theses on the topic "Aluminum hydrolysis"

1

Madem, Akhil. "Enhancing Reaction System for Hydrolysis on Aluminum." Thesis, KTH, Kemiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-266447.

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A range extender in a battery electric vehicle supplements the existing drive system as an add-on module. Range extenders can comprise of any combination of conventional fuel, battery or fuel cell driven modules. The idea of a sub-system changes with the type of range extender. In this work, hydrogen generation is studied, a fuel is used to power the range extender via a fuel cell.The thesis presents the work in progress for development of the sub-system for a range extender based on on-board production of hydrogen for automobiles. Several aspects of chemistry play equally pivotal role in cont

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2

Saukkoriipi, J. (Jaakko). "Theoretical study of the hydrolysis of aluminum complexes." Doctoral thesis, University of Oulu, 2010. http://urn.fi/urn:isbn:9789514261831.

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Abstract This thesis focuses on the molecular-level chemistry of the solvation of aluminum salts. Fundamental aspects such as, structural characteristics of the aluminum molecules, hydrolysis, acidity, solvation structure, effect of counter ions, and chemical stability are discussed herein. Static computations augmented with the conductor-like screening model (COSMO) were used to investigate hundreds of planar and cyclic configurations of dimeric, trimeric, tetrameric, and pentameric aluminum complexes. Car–Parrinello molecular dynamics (CPMD) calculations were used to expand investigations to

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3

White, George Norman. "Measurement of hydrolysis, polymerization and complexation in dilute aluminum solutions." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/53664.

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The nature of chemical reactions taking place during the titration of dilute Al solutions in the presence of either chloride or sulfate were examined by refining the apparent Al hydrolysis products assuming the presence of solution species with n (OH/Al mole ratio) equal to 1, 2, 2.5, 3 and 4. The second and third hydrolysis products for Al were refined by comparison of calculated titration patterns to those observed for 10⁻³, 10⁻⁴ and 10⁻⁵ M Al in 1 M, 0.1 M and 0.01 M KCl. A large degree of polynuclear character of Al solutions was found even at Al concentrations as low as 10⁻⁵ M. The n valu

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4

Chen, Minyi Carleton University Dissertation Chemistry. "The structure binding relationship of aluminum hydrolysis species with hydrophilic gels." Ottawa, 1993.

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5

Abeysinghe, Samangi. "Keggin-type aluminum nanoclusters: synthesis, structural characterization and environmental implications." Thesis, University of Iowa, 2012. https://ir.uiowa.edu/etd/2430.

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Hydrolysis products of aluminum that exist in aqueous solutions play an important role in controlling the fate and transport of contaminants and are also used for coagulants to purification of wastewater streams. Adsorption of contaminants such as heavy metals and organics are widely recognized, but the molecular level understanding of the mechanism of action has not been clearly defined. In this research we present the crystallization, structural characterization and chemical characterization of three novel Keggin-type al

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6

Li, Peng. "Innovative process solutions towards recycling of salt cake from secondary aluminum smelting." Doctoral thesis, KTH, Materialens processvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101074.

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To offer better solutions for the recycling of salt cake from secondary aluminum melting, several innovative investigations were carried out based on hydrometallurgical and pyrometallurgical views. Thermal diffusivity measurements as a function of temperature on salts-Al composites having various compositions (0, 2, 4, 6, 8, 10, 12wt pct metallic Al) were carried out. Its attempt to derive theoretical relationships between aluminium contents in the salt-Al composites and the thermal conductivities so that these would serve as calibration curves for industrial samples taken out from secondary a

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7

Masion, Armand. "Chimie moléculaire et colloïdale des complexes organiques de l'aluminium III partiellement hydrolysés." Vandoeuvre-les-Nancy, INPL, 1993. http://www.theses.fr/1993INPL028N.

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Les acides organiques modifient considérablement le déroulement de l'hydrolyse de l'aluminium par blocage des oligomères intermédiaires entre le monomère et le tridecamère. Les précipités présentent une structure variable suivant l'échelle d'observation

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8

Sarpola, A. (Arja). "The hydrolysis of aluminium, a mass spectrometric study." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514285578.

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Abstract This thesis is focused on the hydrolysis of aluminium, the polymerisation of the hydrolysis products, and how these can be monitored by mass spectrometric methods. The main aim of this research is to figure out how the aqueous speciation of aluminium changes as a function of pH (3.2–10), concentration (1–100 mM), reaction time (1s–14d), and counter anion (Cl-, SO42-, HCOO-). The method used was electrospray mass spectrometry. The results showed more variable speciation than those suggested earlier. The main species were Al2, Al3, and Al13, which were found in all of the conditions und

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9

Santos, Camila Sanzovo Barbosa dos. "Aspectos de sustentabilidade em um processo de produção de hidrogênio com a reutilização do alumínio." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/3217.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Levando em consideração medidas para diminuir os efeitos das mudanças climáticas e tecnologias que auxiliam na segurança energética, esta dissertação tem como tema central o estudo da geração de gás hidrogênio como energia alternativa. O gás hidrogênio é um vetor energético com reduzidas emissões de poluentes na atmosfera se comparados com as fontes tradicionais existentes de energia. No entanto, estudos e pesquisas sobre suas potencialidades e viabilidades, tanto técnicas quanto socioeconômicas e ambientais, precisam ser d

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10

Benyattou, Abdelkader. "Thermohydrolyse de solutions d'aluminium III, conditions d'apparition de phases solides : caractérisations physico-chimiques des précipités." Lyon 1, 1994. http://www.theses.fr/1994LYO10071.

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La thermohydrolyyse, obention d'une phase solide par ebullition prolongee d'une solution initialement homogene, peut etre une technique interessante. Elle assure une bonne reproductibilite et limite la dispersion des proprietes texturales des solides obtenus. Des hydroxysulfates appartenant a la famille des alunites peuvent se former par thermohydrolyse de solutions de sulfate d'aluminium. L'influence de la composition des solutions a ete etudiee. Il est clairement etabli que l'alunite se forme en presence des cations na#+ ou nh#4#+ mais non pas en presence de li#+. Le rendement de precipitati

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