Berlin 2018 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 38: Nanomaterials
MM 38.1: Vortrag
Mittwoch, 14. März 2018, 15:15–15:30, H 0106
Structural Features of the Micromesoporous Carbons for Supercapacitors — •Eneli Härk1, Albrecht Petzold1, Günter Goerigk1, Sebastian Risse1, Nikolay Kardjilov1, André Hilger1, Sven Schneider1, Matthias Ballauff1, Uwe Keiderling1, Indrek Tallo2, and Enn Lust2 — 1Soft Matter and Functional Materials, Helmholtz-Zentrum für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany — 2Institute of Chemistry, University of Tartu, 14a Ravila Str., 50411, Tartu, Estonia
Depending on the synthesis route and conditions chosen, the carbons have different physico-chemical properties. A number of works led to the conclusions that the electrochemical properties vary widely depending on the hierarchical structure of the micromesoporous carbons. Several simulations have shown that an appropriate combination of three structural features determines at first the properties of the carbon, and consequently performance of the device. Due to the complexity of the morphology of the micromesoporous carbon there is still deficiency due date of the unambiguous correlation between the systematical structural features and electrochemical characteristics. A key structural features of micromesoporous carbons will be the subjects of a presentation. For characterization, the x-ray microcomputed tomography (μCT), small-angle neutron scattering (SANS), and small-angle x-ray scattering (SAXS) techniques were applied. The detailed structural information will be used for further optimization and development of the supercapacitors based on micromesoporous carbon.