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Electrochemical Passivation and Texturing of Silicon Wafers in Alkaline Solutions
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:339, Doctoral thesis, 2012)Texturing of silicon wafers is an important process step in fabrication of solar cells in order to reduce the reflection of incoming light radiation on the solar cell surfaces. The conventional wet chemical etching methods ... -
Electrochemical processes in the AlCl3-urea ionic liquid analogue
(Master thesis, 2019)Hvert år produseres det nesten 70 millioner tonn aluminium på verdensbasis som blir anvendt i ulike industrier, blant annet transport-, elektronikk- og emballasjeindustrien. Materialet er høyt etterspurt grunnet sine ... -
Electrochemical Production of Al-Si Alloys in Cryolitic Melts in a Laboratory Cell
(Peer reviewed; Journal article, 2021)Direct production of aluminium-silicon alloy during aluminium electrolysis in fluoride-based melts was studied. Experiments were carried out in a laboratory cell dedicated to current efficiency measurements. Electrolysis ... -
Electrochemical production of Al–Mn alloys during the electrodeposition of aluminium in a laboratory cell
(Peer reviewed; Journal article, 2021)This study reports the direct production of an aluminium–manganese alloy during aluminium electrolysis in fluoride-based melts. Experiments were conducted in a laboratory cell dedicated for current efficiency measurements. ... -
Electrochemical production of titanium by using titanium oxycarbide anodes in molten salts
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:148, Doctoral thesis, 2010)New production routes for the production of titanium are strongly desired to reduce the costs and thereby increase the utilisation of titanium. In the present work the possibility to directly reduce and purify titanium ... -
Electrochemical properties of phosphorus compounds in fluoride melts
(Doktoravhandlinger ved NTNU, 1503-8181; 2003:52, Doctoral thesis, 2003)In the present work the behaviour of phosphorus species in fluoride-based melts was investigated. The motivation for the study was based on the deleterious effect of phosphorus on the aluminium production process. It is ... -
Electrochemical Quartz Crystal Microbalance Investigation of Manganese Oxide Deposition in Sulfuric Acid Relevant for Zinc Electrowinning
(Journal article, 2018)The deposition and dissolution of manganese oxide from a sulfuric acid solution were investigated by conventional electrochemical techniques and EQCM on gold and platinum electrodes. The product of the oxidation was found ... -
Electrochemical reactions of Carboxylic Acids and product identification
(Master thesis, 2011)ABSTRACT -
Electrochemical Reactivity and Wetting Properties of Anodes Made from Anisotropic and Isotropic Cokes
(Journal article, 2016)High quality anodes require stable raw materials. As the quality of the coke available for production of anodes is changing, future production will rely on cokes that are more isotropic with higher impurity levels than ... -
Electrochemical Reduction of Indium and Tin Oxides from Molten Salts
(Doctoral thesis at NTNU;2015:187, Doctoral thesis, 2015)Indium is considered to be a rare element. The largest end use for indium is ITO powder. ITO is indium oxide combined with 10 percent tin oxide and this represent approximately 72 percent of the indium market. ITO can ... -
Electrochemical Reduction of Iron Oxides in Aqueous NaOH Electrolyte Including Iron Residue from Nickel and Zinc Electrowinning Processes
(Journal article, 2022)Experiments were carried out in NaOH-H2O (50–50 wt%) electrolyte with a suspension of Fe2O3 particles at ~100 ℃. A rotating disk electrode of graphite or silver was used as the cathode. The current efficiency for iron ... -
Electrochemical studies and phase-structural characterization of a high-capacity La-doped AB(2) Laves type alloy and its hydride
(Journal article; Peer reviewed, 2019)This work was focused on studies of structural and electrochemical properties of the La-doped AB2-type Zr/Ti-based metal hydride anode alloys. The Ti0.2Zr0.8La0-0.05Ni1.2Mn0.7V0.12Fe0.12 alloys were characterized using ... -
Electrochemical Study of Aluminum Chloride in Basic Chloride Melts with Oxide Additions
(Master thesis, 2020)Hall-Héroult prosessen har dominert fremstillingen av aluminium i over et århundre. Flere alternative prosesser har blitt foreslått, hvorav “Alcoa Smelting Process” som ble utviklet på 70-tallet anses for å være den eneste ... -
Electrochemical syngas production from CO2 and water with CNT supported ZnO catalysts
(Peer reviewed; Journal article, 2020)Electrochemical reduction of CO2 and H2O can provide a promising pathway to synthesis gas generation for renewable electric energy storage and fuel production with the closed anthropogenic carbon cycle. However, the lack ... -
Electrochemically Assisted Growth of Hopper and Tabular Calcite under Confinement
(Peer reviewed; Journal article, 2024)Crystallization under confinement is commonplace in nature and offers new pathways to engineer crystals with the desired morphologies in a controlled and reproducible manner. In this work, we demonstrate the electrochemically ... -
Electrochemically driven degradation of chemical solution deposited ferroelectric thin-films in humid ambient
(Peer reviewed; Journal article, 2020)The ambient humidity significantly accelerates the degradation of lead zirconate titanate (PZT) films in microelectromechanical systems; the cause of such degradation is under debate. Here, it is shown that the degradation ... -
Electrochromic Properties of WO3 Thin Films: The Role of Film Thickness
(Journal article, 2020)Tungsten oxide (WO3) thin films with various thicknesses of approximately 36, 72, 108, and 180 nm were prepared using radio frequency sputtering method. Film thickness can be controlled at nanoscale. In addition, X‐ray ... -
Electrochromic Tungsten Oxide Nanofilms and Ionic Liquid Based Ion Conductor for Smart Windows Development: Preparation, Characterization and Applications
(Doctoral theses at NTNU;2022:62, Doctoral thesis, 2022)The main objective of this thesis is to investigate electrochromic nanofilms and ionic liquid ion conductors (electrolyte) to make electrochromic devices for electrochromic smart window development. Electrochromic film and ... -
Electrochromism of Hexagonal Sodium Tungsten Bronze Nanorods
(Journal article; Peer reviewed, 2018)Single-crystalline sodium tungsten bronze (Na-WO3) nanorods with typical diameters of 10–200 nm and lengths of several microns have been prepared via a simple hydrothermal method. The as-prepared Na-WO3 nanorods crystallize ... -
Electrocoalescence of water in oil emulsions: a DPD simulation study and a novel application of electroporation theory
(Journal article; Peer reviewed, 2019)Pore formation in a surfactant laden oil film between two aqueous electrolyte layers in a DC field was studied using DPD (Dissipative Particle Dynamics molecular simulation). This setting represents the final stage of an ...