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Berlin 2018 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 15: Battery Materials

MM 15.5: Talk

Monday, March 12, 2018, 18:30–18:45, H 0106

Electronic structure of intercalated MXene: towards next generation supercapacitor — •Ameer Al-Temimy1,2, Babak Anasori3, Sneha Choudhury1, Jian Ren1,2, Yury Gogotsi3, and Tristan Petit11Methods for Material Development, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany — 2Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany — 3Department of Materials Science and Engineering & A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA 19104, USA

MXenes are a new class of 2D materials consisting of transition metals carbides and nitrides that demonstrated extraordinary features for electrochemical energy storage.

We have investigated MXene (Ti3C2) in water using soft X-ray absorption spectroscopy (XAS) at the O K-edge and Ti L-edge before and after urea intercalation. The samples were characterized as dried state in vacuum and in aqueous dispersion solution using a flow cell system.

The intercalation impact of urea molecules between the MXene planes and the effect of aqueous dispersion on their electronic structure will be discussed.

This study demonstrates that XAS performed directly in aqueous media is a powerful method for the characterization of energy-related materials.

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