Browsing NTNU Open by Author "Hunvik, Kristoffer William Bø"

Now showing items 1-8 of 8

    • CO desorption from nickel-decorated muscovite mica 

      Hunvik, Kristoffer William Bø; Støvneng, Anna; Pacáková, Barbara; Raaen, Steinar (Journal article; Peer reviewed, 2019)
      Adsorption and desorption of CO from Ni nanostructures deposited on muscovite mica substrates have been studied by TPD and characterized by XPS and AFM. In agreement with previous reports it is found that CO does not adsorb ...

    • CO2 Adsorption Enhanced by Tuning the Layer Charge in a Clay Mineral 

      Hunvik, Kristoffer William Bø; Loch, Patrick; Wallacher, Dirk; Kirch, Alexsandro; Cavalcanti, Leide Passos; Rieß, Martin; Daab, Matthias; Josvanger, Vegard; Grätz, Sven; Yokaichiya, Fabiano; Knudsen, Kenneth Dahl; Miranda, Caetano Rodrigues; Breu, Josef; Fossum, Jon Otto (Peer reviewed; Journal article, 2021)
      Due to the compact two-dimensional interlayer pore space and the high density of interlayer molecular adsorption sites, clay minerals are competitive adsorption materials for carbon dioxide capture. We demonstrate that ...

    • CO2 adsorption on pure and oxidised Ni nano-structures deposited on mica surfaces 

      Hunvik, Kristoffer William Bø; Pacáková, Barbara; Raaen, Steinar (Peer reviewed; Journal article, 2020)
      Adsorption and desorption of CO2 on metallic and oxidised Ni nano-structures supported on mica (muscovite) substrates have been studied by temperature-programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS) and ...

    • The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li+ or Na+ 

      Michels Brito Miranda, Leander Edward; Fonesca, C. L. S. da; Méheust, Y.; Altoé, M. A. S.; Santos, E. C. dos; Grassi, G.; Droppa Jr., R.; Knudsen, Kenneth Dahl; Cavalcanti, Leide Passos; Hunvik, Kristoffer William Bø; Fossum, Jon Otto; Silva, G.J. da; Bordallo, H. N. (Peer reviewed; Journal article, 2020)
      For applications benefitting from the swelling properties of nanolayered silicates (clay minerals), it is of paramount importance to understand the hysteresis in the clay–water interaction. In this context, the present ...

    • Influence of CO2 on Nanoconfined Water in a Clay Mineral 

      Hunvik, Kristoffer William Bø; Lima, Rodrigo José Da Silva; Kirch, Alexsandro; Loch, Patrick; Monceyron Røren, Paul; Hoffmann Petersen, Martin; Rudić, Svemir; García Sakai, Victoria; Knudsen, Kenneth Dahl; Rodrigues Miranda, Caetano; Breu, Josef; Fossum, Jon Otto; Bordallo, Heloisa N. (Peer reviewed; Journal article, 2022)
      Developing new technologies for carbon sequestration and long-term carbon storage is important. Clay minerals are interesting in this context as they are low-cost, naturally abundant, can adsorb considerable amounts of ...

    • Intercalation of CO2 Selected by Type of Interlayer Cation in Dried Synthetic Hectorite 

      Hunvik, Kristoffer William Bø; Seljelid, Konstanse Kvalem; Wallacher, Dirk; Kirch, Alexsandro; Cavalcanti, Leide Passos; Loch, Patrick; Røren, Paul Monceyron; Michels-Brito, Paulo Henrique; Droppa-Jr, Roosevelt; Knudsen, Kenneth Dahl; Miranda, Caetano Rodrigues; Breu, Josef; Fossum, Jon Otto (Peer reviewed; Journal article, 2023)
      Clay minerals are abundant in caprock formations for anthropogenic storage sites for CO2, and they are potential capture materials for CO2 postcombustion sequestration. We investigate the response to CO2 exposure of dried ...

    • Non-activated adsorption of methane on nickel surfaces induced by reduced work function 

      Raaen, Steinar; Hunvik, Kristoffer William Bø (Peer reviewed; Journal article, 2020)
      Adsorption of methane has been studied in ultrahigh vacuum environments on single crystalline as well as on Ni nano-particles on mica substrates. Experimental techniques have been X-ray and ultraviolet photoelectron ...

    • Physicochemical mechanisms for gas adsorption on clay mineral interfaces and surfaces 

      Hunvik, Kristoffer William Bø (Doctoral theses at NTNU;2020:316, Doctoral thesis, 2020)
      Increasing anthropogenic carbon emissions have a detrimental impact on our planet's ecosystems. If we want to keep our planet habitable for future generations, serious action is needed. We need to both reduce and mitigate ...