Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration
Samo za registrovane korisnike
2021
Autori
Gane, PatrickRidgway, C. J.
Kijevčanin, Mirjana
Stijepović, M.
Uskoković, Petar
Barać, Nemanja
Dimić-Mišić, Katarina
Imani, M.
Janaćković, Đorđe
Barcelo, E.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
A novel surface-flow filter has been designed to take advantage of a combination of both diffusion and lateral flow permeation, since active coatings, even if porous, tend to be far less permeable than through-flow constructs. The formation of a continuous coating layer virtually excludes any fluid transport into the coating other than by planar diffusion for gases or capillarity for liquids. This study considers the additional potential advantage of creating a pixelated/patterned coating, applied using a pin coater to form printed dots onto a highly permeable cellulose fibrous paper-like substrate. The coating-fine particulate calcium carbonate combined with micro-nanofibrillated cellulose as binder and humectant-reacts on exposure to NO2 gas to form calcium nitrate. Experimental results show an effective doubling of nitrate-forming efficiency using pixelated coating compared with a reference continuous layer coating. To establish an understanding of the comparative mechanisms of gas-...coating contact, computational fluid dynamic modelling is used to generate surface pressure profiles combined with a pore network model of the coating to estimate theoretical fluid permeability and gas diffusion coefficients. Although pressure-driven permeation was calculated to be approximately two orders of magnitude less than the diffusive flow, it is concluded that patterned aerofoil pressure differential effects can reduce the impact of surface stagnant layering and so aid fluid transfer, boosting the diffusive transport, which in turn delivers greater contact efficiency based on the increased accessibility to the active coating.
Ključne reči:
NOx-mitigation / Surface-flow reactive filtration / Pore network and computational fluid dynamic modelling / Gas / liquid permeation and diffusion / Transport in porous mediaIzvor:
Transport in Porous Media, 2021, 138, 3, 539-576
DOI: 10.1007/s11242-021-01632-z
ISSN: 0169-3913
WoS: 000657569600001
Scopus: 2-s2.0-85107416584
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Gane, Patrick AU - Ridgway, C. J. AU - Kijevčanin, Mirjana AU - Stijepović, M. AU - Uskoković, Petar AU - Barać, Nemanja AU - Dimić-Mišić, Katarina AU - Imani, M. AU - Janaćković, Đorđe AU - Barcelo, E. PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4913 AB - A novel surface-flow filter has been designed to take advantage of a combination of both diffusion and lateral flow permeation, since active coatings, even if porous, tend to be far less permeable than through-flow constructs. The formation of a continuous coating layer virtually excludes any fluid transport into the coating other than by planar diffusion for gases or capillarity for liquids. This study considers the additional potential advantage of creating a pixelated/patterned coating, applied using a pin coater to form printed dots onto a highly permeable cellulose fibrous paper-like substrate. The coating-fine particulate calcium carbonate combined with micro-nanofibrillated cellulose as binder and humectant-reacts on exposure to NO2 gas to form calcium nitrate. Experimental results show an effective doubling of nitrate-forming efficiency using pixelated coating compared with a reference continuous layer coating. To establish an understanding of the comparative mechanisms of gas-coating contact, computational fluid dynamic modelling is used to generate surface pressure profiles combined with a pore network model of the coating to estimate theoretical fluid permeability and gas diffusion coefficients. Although pressure-driven permeation was calculated to be approximately two orders of magnitude less than the diffusive flow, it is concluded that patterned aerofoil pressure differential effects can reduce the impact of surface stagnant layering and so aid fluid transfer, boosting the diffusive transport, which in turn delivers greater contact efficiency based on the increased accessibility to the active coating. T2 - Transport in Porous Media T1 - Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration EP - 576 IS - 3 SP - 539 VL - 138 DO - 10.1007/s11242-021-01632-z ER -
@article{ author = "Gane, Patrick and Ridgway, C. J. and Kijevčanin, Mirjana and Stijepović, M. and Uskoković, Petar and Barać, Nemanja and Dimić-Mišić, Katarina and Imani, M. and Janaćković, Đorđe and Barcelo, E.", year = "2021", abstract = "A novel surface-flow filter has been designed to take advantage of a combination of both diffusion and lateral flow permeation, since active coatings, even if porous, tend to be far less permeable than through-flow constructs. The formation of a continuous coating layer virtually excludes any fluid transport into the coating other than by planar diffusion for gases or capillarity for liquids. This study considers the additional potential advantage of creating a pixelated/patterned coating, applied using a pin coater to form printed dots onto a highly permeable cellulose fibrous paper-like substrate. The coating-fine particulate calcium carbonate combined with micro-nanofibrillated cellulose as binder and humectant-reacts on exposure to NO2 gas to form calcium nitrate. Experimental results show an effective doubling of nitrate-forming efficiency using pixelated coating compared with a reference continuous layer coating. To establish an understanding of the comparative mechanisms of gas-coating contact, computational fluid dynamic modelling is used to generate surface pressure profiles combined with a pore network model of the coating to estimate theoretical fluid permeability and gas diffusion coefficients. Although pressure-driven permeation was calculated to be approximately two orders of magnitude less than the diffusive flow, it is concluded that patterned aerofoil pressure differential effects can reduce the impact of surface stagnant layering and so aid fluid transfer, boosting the diffusive transport, which in turn delivers greater contact efficiency based on the increased accessibility to the active coating.", journal = "Transport in Porous Media", title = "Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration", pages = "576-539", number = "3", volume = "138", doi = "10.1007/s11242-021-01632-z" }
Gane, P., Ridgway, C. J., Kijevčanin, M., Stijepović, M., Uskoković, P., Barać, N., Dimić-Mišić, K., Imani, M., Janaćković, Đ.,& Barcelo, E.. (2021). Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration. in Transport in Porous Media, 138(3), 539-576. https://doi.org/10.1007/s11242-021-01632-z
Gane P, Ridgway CJ, Kijevčanin M, Stijepović M, Uskoković P, Barać N, Dimić-Mišić K, Imani M, Janaćković Đ, Barcelo E. Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration. in Transport in Porous Media. 2021;138(3):539-576. doi:10.1007/s11242-021-01632-z .
Gane, Patrick, Ridgway, C. J., Kijevčanin, Mirjana, Stijepović, M., Uskoković, Petar, Barać, Nemanja, Dimić-Mišić, Katarina, Imani, M., Janaćković, Đorđe, Barcelo, E., "Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration" in Transport in Porous Media, 138, no. 3 (2021):539-576, https://doi.org/10.1007/s11242-021-01632-z . .