Browsing NTNU Open by Author "Torstensen, Jonathan Økland"
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Computational study of the dissolution of cellulose into single chains: the role of the solvent and agitation
Bering, Eivind; Torstensen, Jonathan Økland; Lervik, Anders; de Wijn, Astrid S. (Journal article; Peer reviewed, 2022)We investigate the dissolution mechanism of cellulose using molecular dynamics simulations in both water and a mixture solvent consisting of water with Na+, OH− and urea. As a first computational study of its kind, we apply ... -
Fundamental properties of nanocelluloses, and teir application in membranes for CO2 Separation
Torstensen, Jonathan Økland (Doctoral theses at NTNU;2019:146, Doctoral thesis, 2019) -
Nanocomposite membranes with high-charge and size-screened phosphorylated nanocellulose fibrils for CO2 separation
Helberg, Ragne M Lilleby; Torstensen, Jonathan Økland; Dai, Zhongde; Janakiram, Saravanan; Chinga-Carrasco, Gary; Gregersen, Øyvind Weiby; Syverud, Kristin; Deng, Liyuan (Peer reviewed; Journal article, 2020)In this study, cellulose nanofibrils (CNF) of high charge (H-P-CNF) and screened size (H-P-CNF-S) were fabricated by increasing the charge of phosphorylated cellulose nanofibrils (P-CNFs) during the pre-treatment step of ... -
PVA/nanocellulose nanocomposite membranes for CO2 separation from flue gas
Torstensen, Jonathan Økland; Helberg, Ragne M Lilleby; Deng, Liyuan; Gregersen, Øyvind Weiby; Syverud, Kristin (Peer reviewed; Journal article, 2019)In this paper, we explore the use of nanocelluloses as an additive to poly (vinyl alcohol) (PVA) nanocomposite membranes for CO2/N2 mixed-gas separation. Our findings are that several types of nanocellulose can be used to ...