Blar i NTNU Open på forfatter "Seland, Frode"
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Optimization and Modeling of electrode structure and composition for novel PEM water electrolyser MEAs
Hossein Zavieh, Amin (Master thesis, 2011)Lack of commercial electrocatalysts and membrane electrode assemblies (MEA) which are efficient, durable and reasonably priced for proton exchange membrane water electrolysis was the inspiration of the current project.A ... -
Optimized Nickel-Cobalt and Nickel-Iron Oxide Catalysts for the Hydrogen Evolution Reaction in Alkaline Water Electrolysis
Faid, Alaa; Barnett, Alejandro Oyarce; Seland, Frode; Sunde, Svein (Journal article; Peer reviewed, 2019)Ni and Ni-doped with transition metals (TM) such as Fe and Co represent the most suitable electrodes for hydrogen evolution reaction (HER) in alkaline media. Various compositions of co-precipitated Ni1 + xFe2 − xO4 and Ni1 ... -
Optimum scavenger concentrations for sonochemical nanoparticle synthesis
Hansen, Henrik Erring; Seland, Frode; Sunde, Svein; Burheim, Odne Stokke; Pollet, Bruno (Journal article; Peer reviewed, 2023)Maintaining nanoparticle properties when scaling up a chemical synthesis is challenging due to the complex interplay between reducing agents and precursors. A sonochemical synthesis route does not require the addition of ... -
Performance of activated stainless steel and nickel-based anodes in alkaline water electrolyser
Zamanizadeh, Hamid Reza; Oyarce Barnett, Alejandro Ricardo; Sunde, Svein; Pollet, Bruno; Seland, Frode (Peer reviewed; Journal article, 2023)Four different alloys including SS316, SS304, Inconel718 and Incoloy800 are activated by electro-oxidation at +1.70 V vs. RHE in 7.5 M KOH for 18 h. Their OER activity are evaluated ex-situ using linear sweep voltammetry ... -
Raney-platinum thin film electrodes for the catalysis of glucose in abiotically catalyzed micro-glucose fuel cells
Do, Uyen Phuong; Seland, Frode; Wang, Kaiying; Johannessen, Erik Andrew (Journal article; Peer reviewed, 2019)Fuel cells capable of synthetic glucose catalysis have revolved around the implementation of abiotic catalysts that require extreme acid and alkaline environments. These are not compatible with implantable medical sensor ... -
Sandblasting effect on performance and durability of Ti based IrO2 –Ta2O5 anode in acidic solutions
Xu, Wenting; Haarberg, Geir Martin; Sunde, Svein; Seland, Frode; Ratvik, Arne Petter; Holmin, Susanne; Gustavsson, J; Afvander, Åsa; Zimmerman, Erik; Åkre, Torjus (Journal article; Peer reviewed, 2018)The effect of applying sandblasting during pretreatment while preparing titanium based IrO2 – Ta2O5 anodes by the conventional method was investigated. It was observed that sandblasting influences the surface morphology ... -
Scale-up of Sonochemical Synthesis of Nanocatalysts for Fuel Cells and Electrolyzers
Berge, Thea Birgitte (Master thesis, 2023)Hensikten med dette arbeidet var å oppskalere en sonokjemisk synteserute ved bruk av en 346 kHz ultralyd platetransduser for å produsere Pt/XC72 med reproduserbare egenskaper, og høy katalytisk aktivitet for oksygenreduk ... -
Soldering a gas diffusion layer to a stainless steel bipolar plate using metallic tin
McCay, Katie; Kongstein, Ole Edvard; Ødegård, Anders; Barnett, Alejandro; Seland, Frode (Journal article; Peer reviewed, 2018)A novel investigation to decrease the interfacial contact resistance of stainless steel bipolar plates was performed. A thin layer of Sn was electrodeposited onto a bipolar plate and subsequently joined with a gas diffusion ... -
Sonochemical synthesis of Cu-Pt core-shell nanoparticles on a carbon support
Fakhri, Daniel Øvstedal (Master thesis, 2022)Cu@Pt kjerne-skall partikler ble syntetisert ved sonokjemisk reduksjon av CuSO4 • 5H2O i en vandig bufferløsning med pH 5 bestående av 9.9 mmol dm-3 metansyre, HCOOH, og natriumformat, NaCOOH, som valgt radikalsamler. ... -
Sonochemical Synthesis of Cu@Pt Bimetallic Nanoparticles
Hansen, Henrik Erring; Fakhri, Daniel Øvstedal; Seland, Frode; Sunde, Svein; Burheim, Odne Stokke; Pollet, Bruno (Peer reviewed; Journal article, 2022)Reducing the amount of noble metals in catalysts for electrochemical conversion devices is paramount if these devices are to be commercialized. Taking advantage of the high degree of particle property control displayed by ... -
Sonochemical Synthesis of Nanoparticles for Fuel Cells and Electrolyzers
Hansen, Henrik Erring (Doctoral theses at NTNU;2023:215, Doctoral thesis, 2023)Green hydrogen represents an environmentally friendly alternative to fossil fuels as an energy carrier in many different energy-demanding industries. However, commercialized electrochemical conversion devices utilizing ... -
Strategies for the analysis of the elemental metal fraction of Ir and Ru oxides via XRD, XANES, and EXAFS
Reksten, Anita; Russel, Andrea E.; Richardson, Peter W.; Thompson, Stephen J.; Mathisen, Karina; Seland, Frode; Sunde, Svein (Peer reviewed; Journal article, 2019)Iridium and ruthenium oxide are active electrocatalysts for oxygen evolution. The relation between preparation method, structure, and behavior of mixed oxides of iridium and ruthenium are of interest in order to obtain ... -
Synthesis of CO‐tolerant Ni‐Pt Rhombic Dodecahedra Bimetallic Electrocatalytic Nanoparticles
Singh, Gurvinder; Sunde, Svein; Seland, Frode (Peer reviewed; Journal article, 2020)Developing scalable synthetic routes for fabricating low‐cost CO‐tolerant and highly active electrocatalysts have significant relevance for fuel cell applications. Here, we report a novel and rapid single step synthesis ... -
Systematic Study on TiO2 Crystallization via Hydrothermal Synthesis in the Presence of Different Ferrite Nanoparticles as Nucleation Seeds
Alberti, Stefano; Villa, Silvia; Singh, Gurvinder; Seland, Frode; Martinelli, Alberto; Ferretti, Maurizio; Canepa, Fabio; Caratto, Valentina (Journal article, 2019)In the present work, the crystallization of anatase TiO2 nanoparticles (NPs), using different fer2 rite nanoparticles with different chemical composition, dimensions and shape as nucleation seeds, was investigated. In ... -
Ta-ITO Coated Titanium Bipolar Plates for Proton Exchange Membrane Water Electrolyzers
Lædre, Sigrid; Mendizabal, Lucia; Kongstein, Ole Edvard; Ødegård, Anders; Karoliussen, Håvard; Seland, Frode (Peer reviewed; Journal article, 2022)A novel bi-layer coating composed of a tantalum base layer with an Indium Tin Oxide (ITO) top layer was applied to titanium substrates. Samples were polarized ex situ in a parameter study, where the pH, potential and ... -
Tailoring the oxide surface composition of stainless steel for improved OER performance in alkaline water electrolysis
Zamanizadeh, Hamid Reza; Sunde, Svein; Pollet, Bruno; Seland, Frode (Peer reviewed; Journal article, 2022)There is a strong desire to replace bulk nickel electrodes for oxygen evolution reaction (OER) with a cheaper and more active steel material in alkaline water electrolyser (AWE). However, implementing an activation procedure ... -
Ternary NiCoFe nanosheets for oxygen evolution in anion exchange membrane water electrolysis
Faid, Alaa Yahia Abulgheit A.; Barnett, Alejandro Oyarce; Seland, Frode; Sunde, Svein (Peer reviewed; Journal article, 2022)Tuning nickel-based catalyst activity and understanding electrolyte and ionomer interaction for oxygen evolution reaction (OER) is crucial to improve anion exchange membrane (AEM) water electrolyzers. Herein, an investigation ... -
The durability of the thermally decomposed IrO2-Ta2O5 coated titanium anode in a sulfate solution
Xu, Wenting; Haarberg, Geir Martin; Seland, Frode; Sunde, Svein; Ratvik, Arne Petter; Holmin, Susanne; Afvander, Åsa; Gustavsson, John; Zimmerman, Erik; Årke, Torjus (Journal article; Peer reviewed, 2019)In this work, series of IrO2-Ta2O5 anodes were investigated. The catalytic activity towards oxygen evolution reaction (OER) of these anodes are determined by calcination temperature, coating loading (coating thickness), ... -
The influence of argon, air and hydrogen gas on thermal conductivity of gas diffusion layers and temperature gradients in PEMFCs
Bock, Robert; Hamre, Bjørnar; Onsrud, Morten Andreas; Karoliussen, Håvard; Seland, Frode; Burheim, Odne Stokke (Journal article; Peer reviewed, 2019)Gas diffusion layers (GDL) in fuel cells have to satisfy a range of conflicting demands. They must deliver good mass transport, but also good electrical and thermal transport. The thermal conductivity of two GDLs was ... -
The influence of graphitization on the thermal conductivity of catalyst layers and temperature gradients in proton exchange membrane fuel cells
Bock, Robert; Karoliussen, Håvard; Pollet, Bruno; Secanell, Marc; Seland, Frode; Stanier, Dave; Burheim, Odne Stokke (Journal article; Peer reviewed, 2018)As the proton exchange membrane fuel cell (PEMFC) has improved its performance and power density, the efficiency has remained unchanged. With around half the reaction enthalpy released as heat, thermal gradients grow. To ...