Preparation of Highly Porous Carbonous Electrodes by Selective Laser Sintering
Lahtinen, E., Kukkonen, E. P., Jokivartio, J., Parkkonen, J., Virkajärvi, J., Kivijärvi, L., Ahlskog, M., & Haukka, M. (2019). Preparation of Highly Porous Carbonous Electrodes by Selective Laser Sintering. ACS Applied Energy Materials, 2(2), 1314-1318. https://doi.org/10.1021/acsaem.8b01881
Published inACS Applied Energy Materials
DisciplineFysiikkaEpäorgaaninen ja analyyttinen kemiaNanoscience CenterPhysicsInorganic and Analytical ChemistryNanoscience Center
© 2019 American Chemical Society
Selective laser sintering (SLS) 3D printing was utilized to fabricate highly porous carbonous electrodes. The electrodes were prepared by using a mixture of fine graphite powder and either polyamide-12, polystyrene, or polyurethane polymer powder as SLS printing material. During the printing process the graphite powder was dispersed uniformly on the supporting polymer matrix. Graphite’s concentration in the mixture was varied between 5 and 40 wt % to find the correlation between the carbon content and conductivity. The graphite concentration, polymer matrix, and printing conditions all had an impact on the final conductivity. Due to the SLS printing technique, all the 3D printed electrodes were highly porous. By using polyurethane as the supporting matrix it was possible to produce flexible electrodes in which the conductivity is sensitive to pressure and mechanical stress. Physical properties such as graphite distribution, attachment, and the overall porosity of the printed electrodes were studied using scanning electron microscopy (SEM), helium ion microscopy (HIM), and X-ray tomography. The results show that the combination of chemical design of the printing material and the utilization of SLS 3D printing enables fabrication of highly customizable electrodes with desired chemical, physical, mechanical, and flow-through properties. ...
PublisherAmerican Chemical Society
ISSN Search the Publication Forum2574-0962
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland
Funding program(s)Academy Project, AoF
Additional information about fundingFinancial support from the Centennial Foundation of Technology industries of Finland and Jane and Aatos Erkko foundation is greatly appreciated. The research was also supported by the Academy of Finland (grant number: 295581 (M.H.)) and University of Jyväskylä.
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