University of Twente Student Theses
Transport Phenomena in Monolayer Graphene Membranes
Jorissen, Koen F.A. (2017) Transport Phenomena in Monolayer Graphene Membranes.
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| Abstract: | Graphene ion exchange membranes were characterized using permselectivity, permporometry and membrane permeability analysis. Donnan and diffusion based transport was analyzed for KCl, LiCl, K 2 SO 4 and CaCl 2 . Concentration-potential were found for KCl, LiCl and K 2 SO 4 . The data is qualitatively discussed using Debye-Huckel theory. Physical properties of the membrane were characterized fitting this data to Teorell-Meyer-Sievers theory. An attempt to determine pore size and distribution was made, though results were inconclusive. Membrane permeance of water was found negligible for pressures up to 4 bar. TMS theory was found somewhat applicable to the graphene membrane. Ways of improving fitting and further areas of interest are suggested. |
| Item Type: | Essay (Bachelor) |
| Faculty: | TNW: Science and Technology |
| Subject: | 35 chemistry |
| Programme: | Chemical Engineering BSc (56960) |
| Link to this item: | https://purl.utwente.nl/essays/73065 |
| Export this item as: | BibTeX EndNote HTML Citation Reference Manager |
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