Blar i NTNU Open på forfatter "Seland, Frode"
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Improving the Dynamic Sensing Range of Electrochemical Enzymatic Lactate Biosensors for Sweat Monitoring Applications
Leinebø, Charlotte Amalie (Master thesis, 2023)Svette er en lett tilgjengelig kroppsvæske for ikke-invasiv og kontinuerlig sanntidsmåling av laktat under fysisk aktivitet. Elektrokjemiske enzym-baserte biosensorer er lovende for integrering i en bærbar sensorenhet, da ... -
Interface resolved simulations of continuum scale electrochemical hydrogen evolution
Vachaparambil, Kurian J. (Doctoral theses at NTNU;2020:363, Doctoral thesis, 2020)An important aspect of improving the efficiency of water electrolysis is to remove the electrochemically generated hydrogen and oxygen bubbles. The evolution of these gases, which are associated with increased electrical ... -
Investigation of metallic bipolar plates for PEM fuel cells
Lædre, Sigrid (Master thesis, 2011)High cost and a short lifetime are the two main reasons why the PEM fuel cell is yet to be commercialized. The bipolar plate in a PEM fuel cell is alone responsible for about 45% of the cost and 85% of the total weight of ... -
Ionomer content optimization in nickel-iron-based anodes with and without ceria for anion exchange membrane water electrolysis
Cossar, Emily; Barnett, Alejandro Oyarce; Seland, Frode; Safari, Reza; Botton, Gianluigi A.; Baranova, Elena A. (Journal article; Peer reviewed, 2021)Hydrogen production from anion exchange membrane water electrolysis (AEMWE) is an efficient cost-effective solution to renewable energy storage. Contrary to proton exchange membrane (PEM) electrolysis, AEMWE requires further ... -
Iridium-based Electrocatalysts for the Oxygen Evolution Reaction
Reksten, Anita (Doctoral thesis at NTNU;2016:226, Doctoral thesis, 2016)English version: This thesis covers several topics related to the anodic catalyst for the oxygen evolution reaction (OER) in polymer electrolyte membrane (PEM) water electrolysis. Water electrolysis is considered one ... -
Long-term stability of screen-printed pseudo-reference electrodes for electrochemical biosensors
Søpstad, Sindre; Johannessen, Erik Andrew; Seland, Frode; Imenes, Kristin (Journal article; Peer reviewed, 2018)Pseudo reference electrodes forms an essential part of electrochemical transducers, where they are used to maintain a reference potential for the system. Yet, little is known about their long-term stability, and any drift ... -
Manganese Oxide in Zinc Electrowinning: Deposition and removal at platinum, gold and IrO2-Ta2O5/Ti anodes in sulphuric acid
Skaftun, Siri Marie (Doctoral theses at NTNU;2021:242, Doctoral thesis, 2021)An environmentally friendly and energy efficient replacement for lead anodes in zinc electrowinning is highly desired. Oxygen evolution reaction (OER) is the desired anode reaction in acidic sulphate electrolytes. However, ... -
Mass-transport impedance at channel electrodes: Accurate and approximate solutions
Holm, Thomas; Ingdal, Mats; Fanavoll, Espen Vinge; Sunde, Svein; Seland, Frode; Harrington, David A. (Journal article; Peer reviewed, 2016)Accurate numerical electrochemical impedance spectra at channel electrodes are obtained using commercial finite element method software. These agree with experimental measurements on the hexaammineruthenium(II/III) reversible ... -
Materials for Proton Exchange Membrane water electrolyzer bipolar plates
Lædre, Sigrid; Kongstein, Ole Edvard; Ødegård, Anders; Karoliussen, Håvard; Seland, Frode (Journal article; Peer reviewed, 2017)Titanium based BiPolar Plates (BPPs) are commonly used in Proton Exchange Membrane Water Electrolyzers (PEMWEs) today as they can withstand the harsh operating conditions experienced inside an operating PEM water electrolyzer. ... -
Measuring In Situ Interfacial Contact Resistance in a Proton Exchange Membrane Fuel Cell
Lædre, Sigrid; Kongstein, Ole Edvard; Ødegård, Anders; Seland, Frode; Karoliussen, Håvard (Journal article; Peer reviewed, 2019)Interfacial contact resistance (ICR) is one of the remaining hurdles for successful implementation of stainless steel bipolar plates in PEM fuel cells. We have developed a reliable method, using thin gold wires, to measure ... -
Measuring the thermal conductivity of membrane and porous transport layer in proton and anion exchange membrane water electrolyzers for temperature distribution modeling
Bock, Robert; Karoliussen, Håvard; Seland, Frode; Pollet, Bruno; Thomassen, Magnus; Holdcroft, Steven; Burheim, Odne Stokke (Journal article; Peer reviewed, 2019)Water electrolyzers that use a membrane electrolyte between the electrodes are a promising technology towards mass production of renewable hydrogen. High power setups produce a lot of heat which has to be transported through ... -
Method for Studying High Temperature Aqueous Electrochemical Systems: A Self-Pressurized Autoclave
Holm, Thomas; Dahlstrøm, Per Kristian; Sunde, Svein; Harrington, David A.; Seland, Frode (Journal article; Peer reviewed, 2016) -
Method for studying high temperature aqueous electrochemical systems: Methanol and glycerol oxidation
Holm, Thomas; Dahlstrøm, Per Kristian; Burheim, Odne Stokke; Sunde, Svein; Harrington, David A.; Seland, Frode (Journal article; Peer reviewed, 2016)A method for high purity aqueous electrochemical experiments at temperatures above the normal boiling point of water and at temperatures up to 140 °C is described. A three-electrode cell in a self-pressurized glass autoclave ... -
A micro fuel cell for abiotical catalysis of glucose
Do, Uyen Phuong; Seland, Frode; Johannessen, Erik Andrew (Peer reviewed; Journal article, 2020)A miniaturised abiotical fuel cell designed for operation inside a physiologically relevant mixed fuel environment of dissolved di-oxygen (DO) and glucose, have been realized by embedding the glucose sensitive anode below ... -
Micro-fluidic flow cells for studies of electrochemical reactions
Ingdal, Mats (Master thesis, 2014)Micro fluidic flow cells (MFFCs) are a relatively new technique for characterization of electrochemical reactions. This work includes both techniques for manufacturing the cells and electrochemical characterization of ... -
Microfluidic and high temperaturetechniques for aqueous electrochemistry
Holm, Thomas (Doctoral thesis at NTNU;2016:196, Doctoral thesis, 2016)Liquid organic fuels are highly desired energy carriers as they have a high energy density, simple production, and can benefit directly from existing infrastructure. However, the electrochemical conversion efficiency is ... -
Microfluidic flow cells for studies of electrochemical reactions
Møinichen, Christine (Master thesis, 2012)In this project the main goal was to establish a routine for making a microfluidic flow cell (MFFC) using soft lithography methods, and test the flow cell with different electrolytes, sulphuric acid and a ruthenium red-ox ... -
Microfluidic flow cells for the analysis of electrocatalytic reactions
Fanavoll, Espen Vinge (Doctoral theses at NTNU;2017:331, Doctoral thesis, 2017)English summary Microfluidic flow cells for the analysis of electrocatalytic reactions The electro-oxidation of small organic molecules such as methanol could play an important role in the transition from fossil fuels ... -
Multilayer Coated Aluminium Bipolar Plates for Light-weight Fuel Cells
Mustaparta, Maria Amundsen (Master thesis, 2022)Den moderne verdens største utfordring er å holde seg innenfor grensene for akseptabel global oppvarming. Klimagassutslipp må derfor reduseres. Flytrafikk er en enorm bidragsyter til klimagassutslipp verden over. ... -
Ni-Co and Ni-Fe Catalysts for The Oxygen Evolution Reaction in Alkaline Water Electrolysis
Hojatshamami, Amirhossein (Master thesis, 2022)Nickel-based catalysts were chosen for alkaline electrolysis of water due to their higher corrosion resistance and activity in alkaline environments. Alkaline membrane water electrolysis tries to combine the low cost of ...