Browsing NTNU Open by Author "Seland, Frode"
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A microfluidic electrochemical cell with integrated PdH reference electrode for high current experiments
Fanavoll, Espen Vinge; Harrington, David A.; Sunde, Svein; Singh, Gurvinder; Seland, Frode (Journal article; Peer reviewed, 2016)An on-chip thin-film palladium hydride reference electrode is described for use with microfluidic electrochemical cells. A Pd electrode fabricated by photolithographic methods is charged with hydrogen in-situ with a simple ... -
A semianalytical method for simulating mass transport at channel electrodes
Holm, Thomas; Sunde, Svein; Seland, Frode; Harrington, David A. (Journal article; Peer reviewed, 2015)A method for simulating electrode reactions in channel flow is developed and efficiently implemented in the symbolic algebra program Maple™. The steady-state convective diffusion equation for fully developed 2-D laminar ... -
Anodeprosesser i elektrokjemisk fremstilling av sink
Skaftun, Siri Marie (Master thesis, 2013)Målet med denne oppgaven var å studere utfellingen av manganoksid fra en svovelsur elektrolytt inneholdende manganspesier. Syklisk voltametri, lineærsveip voltametri og potensialsteg ble utført på ulike elektrodematerialer. ... -
Bimetallic Nano Electrocatalyst for HER in Alkaline Polymer Electrolysis
Faid, Alaa; Manikandan, Maidhily; Seland, Frode; Barnett, Alejandro; Sunde, Svein (Journal article; Peer reviewed, 2018)Ni and alloys of Ni (with Fe, Co, Mo) still represent the most suitable electrodes for HER in alkaline media. Bimetallic nanoparticles of NiFe and NiCo were fabricated by co-precipitation and thermal reduction by oleylamine. ... -
Bipolar Plates for PEM Systems
Lædre, Sigrid (Doctoral thesis at NTNU;2016:247, Doctoral thesis, 2016)Summary of thesis: The Bipolar Plate (BPP) is an important component in both Proton Exchange Membrane Fuel Cells (PEMFCs) and Proton Exchange Membrane Water Electrolyzers (PEMWEs). Bipolar plate material and processing ... -
Calcination temperature dependent catalytic activity and stability of IrO2 – Ta2O5 anodes for oxygen evolution reaction in aqueous sulfate electrolytes
Xu, Wenting; Haarberg, Geir Martin; Sunde, Svein; Seland, Frode; Ratvik, Arne Petter; zimmerman, erik; Shimamune, T; Gustavsson, J; Åkre, Torjus (Journal article; Peer reviewed, 2017)In this work, commercial IrO2-Ta2O5 anodes with a certain composition calcined at three different temperatures were investigated. The results show that the calcination temperature has a significant influence on the ... -
Carbon Based Coatings for Metallic Bipolar Plates in PEM Fuel Cells
Husby, Håvard (Master thesis, 2013)Global warming and the climate changes are issues that concern everyone. The transition to other energy carriers than fossil fuels is a key barrier if we are to reduce our dependence on oil. Hydrogen is forecasted as the ... -
Carbon-polymer composite coatings for PEM fuel cell bipolar plates
Husby, Hans; Kongstein, Ole Edvard; Ødegård, Anders; Seland, Frode (Journal article; Peer reviewed, 2014)A carbon-polymer composite coating on stainless steel 316L substrates was investigated for the use as bipolar plate material for polymer electrolyte membrane fuel cells. The coating consisted of 45 vol% graphite, 5 vol% ... -
Dynamic electrochemical impedance spectroscopy, for electrocatalytic reactions
Sacci, Robert L.; Seland, Frode; Harrington, David (Journal article; Peer reviewed, 2014)Dynamic electrochemical impedance spectroscopy with the ac signal applied while sweeping the potential is a powerful method to study reaction mechanisms of surface electrochemical reactions. The ability to reliably measure ... -
Dynamic electrochemical impedance study of methanol oxidation at Pt at elevated temperatures
Holm, Thomas; Dahlstrøm, Per Kristian; Sunde, Svein; Seland, Frode; Harrington, David A. (Journal article; Peer reviewed, 2019)The methanol oxidation reaction (MOR) is studied at temperatures up to 140 °C by a combination of cyclic voltammetry, chronoamperometry, and dynamic electrochemical impedance spectroscopy (dEIS). A mechanistic analysis of ... -
Effect of anion exchange ionomer content on electrode performance in AEM water electrolysis
Faid, Alaa; Xie, Lin; Barnett, Alejandro Oyarce; Seland, Frode; Kirk, Donald; Sunde, Svein (Journal article; Peer reviewed, 2020)Anion exchange membrane water electrolysis (AEMWE) has acquired substantial consideration as a cost-effective hydrogen production technology. The anion ionomer content in the catalyst layers during hydrogen and oxygen ... -
Effekten av karbonbelegg på tinnbelagte og varmepressede bipolare plater for PEM-brenselceller
Dhillon, Amrinder; Nnoli, Chido; Nykaas, Ruben (Bachelor thesis, 2019)Formålet med arbeidet har vært å utvikle et nytt, lavkost og varig overflatebelegg for bipolare plater av rustfritt stål til PEM-brenselceller. Hensikten med arbeidet var å oppnå økt stabilitet av tinnbelegg og minke ... -
Electro-oxidation of ethanol at Pt electrodes with the use of a Dynamic Electrochemical Impedance Spectroscopy (DEIS) technique
Døssland, Line Teigen (Master thesis, 2012)Electro-oxidation of ethanol on smooth platinum surfaces was studied in thetemperature range 21C to 140C for 0.2 M ethanol in 0.5 M sulphuric acid.This was done by use of cyclic voltammetry and electrochemical impedances ... -
Electrochemical Behaviour of Industrial IrO2-Ta2O5 Anodes for Copper Electrowinning
Xu, Wenting; Haarberg, Geir Martin; Sunde, Svein; Seland, Frode; Ratvik, Arne Petter; Zimmerman, Erik; Åkre, Torjus (Journal article; Peer reviewed, 2017)In this work, industrial IrO2-Ta2O5 anodes calcined at different temperatures were investigated. The results show that the calcination temperature has significant influence on the surface microstructure including the ... -
Electrochemical Oxidation of Methanol and Formic Acid in Fuel Cell Processes
Seland, Frode (Doktoravhandlinger ved NTNU, 1503-8181; 2005:204, Doctoral thesis, 2005)The main objectives of the thesis work were: (1), to study the oxidation of methanol and formic acid on platinum electrodes by employing conventional and advanced electrochemical methods, and (2), to develop membrane ... -
Electrochemical Quartz Crystal Microbalance Investigation of Manganese Oxide Deposition in Sulfuric Acid Relevant for Zinc Electrowinning
Skaftun, Siri Marie; Sunde, Svein; Haarberg, Geir Martin; Seland, Frode (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
Gulbrandsen, Ragnhild Helene (Master thesis, 2011)ABSTRACT -
Electrodeposition of zinc from acidic electrolyte
Rosenberg, Even Andersen (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
Krakhella, Kjersti Wergeland; Morales, Marjorie; Bock, Robert; Seland, Frode; Burheim, Odne Stokke; Einarsrud, Kristian Etienne (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 ... -
Electrolytic Removal of Chloride from Acidic Nitrate Solutions
Sandland, Maiken (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 ...