New paper published in ACS Applied Materials & Interfaces on in situ electrochemistry. Using electrochemical quartz crystal microbalance methodology, we can discern different mechanical responses of binder materials, such as polyvinyldifluoride or sodium carboxymethyl cellulose. This work was in collaboration with the Aurbach Group at Bar Ilan University, Israel.
New paper published in Sustainable Energy & Fuels on the use of the microjet reactor for the synthesis of CDC beads. CDC (carbide derived carbon) was obtained from polymer derived ceramic beads. By adjusting the vinyl / phenyl ratio, the pore size structure was modified. Nanoporous CDC beads showed a high suitability for use as supercapacitor electrodes. This work was in collaboration with Guido Kickelbick (inorganic solid-state chemistry, Saarland University).
New paper published in Journal of Materials Chemistry A on the use of molbdenum disulfide / carbon nanotube electrodes for Faradaic deionization. Our work establishes membrane-free electrochemical desalination with a symmetric cell design that allows energy efficient deionization of saline media of low (5 mM) or high (500 mM) NaCl concentration.
New paper published in Electrochimica Acta on the influence of carbon distribution on the electrochemical performance and stability of lithium titanate / carbon electrodes. The carbon distribution is essential to ensure electric conduits throughout the electrode and lack thereof may severely degrade the electrochemical performance stability (not just energy density and power handling).
New paper published in ACS Applied Materials & Interfaces on the complementary use of in situ small angle X-ray scattering and electrochemical dilatometry to track the expansion of nanoporous carbon based on hierarchic pore architectures. Our data underline the importance of micropores for the volume changes occuring during electrochemical cycling. This work was in collaboration with Montanuniversität Leoben (Oskar Paris) and Universität Salzburg (Nicola Hüsing).
New paper published in the Journal of Materials Chemistry A on the promising features of the ZnI2 redox energy storage system. Using activated carbon cloth electrode and a Zn electrode, we achieve a high energy storage performance of 226 Wh/kg and a higher power of 20 kW/kg. The unique strength of iodide adsorption allows stable and efficient operation even without ion exchange membranes.
New paper published in ChemSusChem on using mechanochemical solvent-free synthesis of nitrogen doped nanoporous carbon for supercapacitor electrodes. This work stems from our collaboration with the Junior Investigator Group of Lars Borchardt (TU Dresden) and is being featured on the back cover of the current issue of ChemSusChem.