On the theory of deuteron NMR free induction decay of reptating polymer chains: effect of end segment dynamics. - In: The journal of chemical physics, ISSN 1089-7690, Bd. 152 (2020), 18, 184904, insges. 12 S.
https://doi.org/10.1063/5.0005049
Origins of boosted charge storage on heteroatom-doped carbons. - In: Angewandte Chemie, ISSN 1521-3757, Bd. 132 (2020), 20, S. 8002-8007
https://doi.org/10.1002/ange.202000319
Review on recent advances of cathode materials for potassium-ion batteries. - In: Energy & Environmental Materials, ISSN 2575-0356, Bd. 3 (2020), 1, S. 56-66
https://doi.org/10.1002/eem2.12060
Combination of MRI and SEM to assess changes in the chemical properties and permeability of porous media due to barite precipitation. - In: Minerals, ISSN 2075-163X, Bd. 10 (2020), 3, 226, insges. 20 S.
The understanding of the dissolution and precipitation of minerals and its impact on the transport of fluids in porous media is essential for various subsurface applications, including shale gas production using hydraulic fracturing ("fracking"), CO2 sequestration, or geothermal energy extraction. In this work, we conducted a flow through column experiment to investigate the effect of barite precipitation following the dissolution of celestine and consequential permeability changes. These processes were assessed by a combination of 3D non-invasive magnetic resonance imaging, scanning electron microscopy, and conventional permeability measurements. The formation of barite overgrowths on the surface of celestine manifested in a reduced transverse relaxation time due to its higher magnetic susceptibility compared to the original celestine. Two empirical nuclear magnetic resonance (NMR) porosity-permeability relations could successfully predict the observed changes in permeability by the change in the transverse relaxation times and porosity. Based on the observation that the advancement of the reaction front follows the square root of time, and micro-continuum reactive transport modelling of the solid/fluid interface, it can be inferred that the mineral overgrowth is porous and allows the diffusion of solutes, thus affecting the mineral reactivity in the system. Our current investigation indicates that the porosity of the newly formed precipitate and consequently its diffusion properties depend on the supersaturation in solution that prevails during precipitation.
https://doi.org/10.3390/min10030226
Irreversible dilation of graphite composite anodes influenced by vinylene carbonate. - In: Journal of power sources, ISSN 1873-2755, Bd. 457 (2020), 228020
https://doi.org/10.1016/j.jpowsour.2020.228020
Ultrathin Na2Ti2O4(OH)2 nanowall for boosting sodium storage. - In: Materials letters, ISSN 1873-4979, Bd. 269 (2020), S. 127649
Im Titel sind "2" und "4" tiefgestellt
https://doi.org/10.1016/j.matlet.2020.127649
Oxygen-functionalized soft carbon nanofibers as high-performance cathode of K-ion hybrid capacitor. - In: Nano energy, ISSN 2211-2855, Bd. 72 (2020), 104661
https://doi.org/10.1016/j.nanoen.2020.104661
Transformation of the buffer layer grown on 4H-SiC to single-layer graphene by ex situ hydrogen intercalation. - In: Fullerenes, nanotubes & carbon nanostructures, ISSN 1536-4046, Bd. 28 (2020), 4, S. 316-320
https://doi.org/10.1080/1536383X.2019.1708733
Local probes of graphene lattice dynamics. - In: Small Methods, ISSN 2366-9608, Bd. 4 (2020), 5, 1900817, S. 1-18
https://doi.org/10.1002/smtd.201900817
Effect of initial conformation on the starch biopolymer film formation studied by NMR. - In: Molecules, ISSN 1420-3049, Bd. 25 (2020), 5, 1227, insges. 17 S.
https://doi.org/10.3390/molecules25051227