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Electrodeposition of Aluminium and Co-Deposition of Alloying Elements Titanium, Manganese and Silicon in Molten Fluoride Electrolyte
(Peer reviewed; Journal article, 2022)Primary aluminium is produced by the Hall-Heroult process which is based on electrolysis in molten fluoride electrolyte, Na3AlF6-AlF3, at ~960 oC in which the raw material alumina is dissolved and decomposed into pure ... -
Electrodeposition of aluminium containing alloys from molten fluoride electrolytes containing metal oxides
(Peer reviewed; Journal article, 2020)Aluminium is produced by the Hall-Heroult process by electrowinning in a molten fluoride electrolyte with dissolved alumina at ~955oC. Several metallic impurities typically end up in the produced metal due to the fact that ... -
Electrodeposition of aluminium-titanium alloys from molten fluoride-oxide electrolytes
(Peer reviewed; Journal article, 2021)This study reports the direct production of an aluminium-titanium alloy during aluminium electrolysis in fluoride-based melts. Experiments were conducted in a laboratory cell dedicated to current efficiency measurements. ... -
Electrodeposition of indium and tin from molten chloride electrolytes
(Journal article; Peer reviewed, 2017)Recycling of electronic waste to recover the metal value is of prime importance, especially for metals with limited resources. An electrochemical approach should be an interesting option to develop sustainable recycling ... -
Electrodeposition of Silicon in Fluoride Melts: Production of Silicon Films
(Master thesis, 2011)There has been considerable interest in electrodeposition of silicon from fluoride melts on a suitable substrate for its application in thin film solar cells. The goal of this work is to produce a high purity silicon films ... -
Electrodeposition of Silicon with a Liquid Gallium Cathode in Molten Salts
(Journal article; Peer reviewed, 2019)Further development of solar power depends largely on the availability of inexpensive solar grade silicon. Electrodeposition is a candidate method to produce high purity silicon at a reasonable cost. A new approach using ... -
Electrodeposition of zinc from acidic electrolyte
(Master thesis, 2017)Industrial zinc electrowinning is carried out in an aqueous solution of zinc sulfate in sulfuric acid. The anodes are made of a lead-silver alloy and the cathodes are made of a relatively pure aluminium alloy. A common ... -
Electrodialytic Energy Storage System: Permselectivity, Stack Measurements and Life-Cycle Analysis
(Peer reviewed; Journal article, 2020)Reverse electrodialysis and electrodialysis can be combined into a closed energy storage system, allowing for storing surplus energy through a salinity difference between two solutions. A closed system benefits from simple ... -
Electrolysis in reduced gravitational environments: current research perspectives and future applications
(Peer reviewed; Journal article, 2022)Electrochemical energy conversion technologies play a crucial role in space missions, for example, in the Environmental Control and Life Support System (ECLSS) on the International Space Station (ISS). They are also vitally ... -
Electrolysis of indium oxide in LiCl-KCl based molten salts with a liquid cathode
(Peer reviewed; Journal article, 2020)In this work, the feasibility of extracting of metallic indium from In2O3and ITO through the direct electrochemical reduction at 450°C in molten salt LiCl-KCl was studied. Cyclic voltammetry was carried out to study the ... -
Electrolyte Melt Compositions for Low Temperature Molten Carbonate Thermocell
(Journal article; Peer reviewed, 2018)Industrial processes for the production of metals and alloys by metallurgical and electrochemical methods generate a great deal of waste heat due to irreversible losses. This waste heat may be used as a power source to ... -
Electrolytic Removal of Chloride from Acidic Nitrate Solutions
(Master thesis, 2014)Chloride containing ores are among other things often used as the raw material in metal electrowinning from aqueous solutions. The dissolution of this ore may cause problems as chlorine gas will be evolved either as a side ... -
Electromagnetic Casting of Aluminium: Analyzing the Effect of EM Fields on Al and Al-Si Alloy Compared to Commercial Grain Refiners
(Bachelor thesis, 2022)Dette prosjektet hadde som formål å sammenligne den mulige kornfinings effekten fra et indusert elektromagnetisk felt med kommersielle kornfinere på en kommersiellt ren aluminium (99.7%) og en aluminium-silisium legering ... -
Electromagnetically Enhanced Priming of Ceramic Foam Filters
(Doctoral thesis at NTNU;2016:250, Doctoral thesis, 2016)Impurities in aluminium can cause detrimental physical and chemical inhomogeneity in the final products, as well as potentially catastrophic failures. Hence, one of the key aspects during production of aluminium and its ... -
Electromechanics of Domain Walls in Uniaxial Ferroelectrics
(Peer reviewed; Journal article, 2023)Piezoresponse force microscopy (PFM) is used for investigation of the electromechanical behavior of the head-to-head (H-H) and tail-to-tail (T-T) domain walls on the non-polar surfaces of three uniaxial ferroelectric ... -
Electronic and structural properties of the natural dyes curcumin, bixin and indigo
(Peer reviewed; Journal article, 2021)An optical, electronic and structural characterisation of three natural dyes potentially interesting for application in organic solar cells, curcumin (C21H20O6), bixin (C25H30O4) and indigo (C16H10N2O2), was performed. ... -
Electronic bulk and domain wall properties in B-site doped hexagonal ErMnO3
(Journal article; Peer reviewed, 2018)Acceptor and donor doping is a standard for tailoring semiconductors. More recently, doping was adapted to optimize the behavior at ferroelectric domain walls. In contrast to more than a century of research on semiconductors, ... -
Electronic properties of reduced molybdenum oxides
(Journal article; Peer reviewed, 2017)The electronic properties of MoO3 and reduced molybdenum oxide phases are studied by density functional theory (DFT) alongside characterization of mixed phase MoOx films. Molybdenum oxide is utilized in compositions ranging ... -
Electronic Property Engineering in a Ferroelectric Oxide: Nanostructuring and Advanced Characterization.
(Doctoral theses at NTNU;2024:102, Doctoral thesis, 2024)The advancement of electronic nanotechnology hinges on the use of innovative materials and new conceptual approaches for devices to meet the demand of miniaturization, energy efficiency, and sustainability. Ferroelectric ... -
Electronic structure and growth of electrochemically formed iridium oxide films
(Journal article; Peer reviewed, 2017)The nature of the electronic structure of electrochemically formed iridium oxide films (EIROF) is investigated by in-situ conductivity measurements in an electrochemical cell and ex-situ current-sensing atomic force ...