New paper published in ChemSusChem. Our joint work with the Leibniz Institute for Plasma Science and Technology (INP Greifswald) demonstrates mixed Ti-Nb metal oxide electrodes for lithium ion application. Using electrospinning, the fiber mats are free of binder, free-standing, and can be directly used as electrodes. Per nanoscale engineering, the fibers also already contained sufficient amounts of conductive carbon within each fiber, so that no additional conductive phase needed to be added.
New paper published in ChemSusChem on a new multi-channel system to significantly boost the desalination capacity for capacitive deionization.
New paper published in Chemistry of Materials on the use of titanium disulfide as sodium intercalation material in aqueous media. In our quest to establish ion intercalation materials for water desalination, we demonstrate titanium disulfide as a battery-like electrode material highly suited to remove sodium ions from saline solutions. Pairing with nanoporous carbon to accomplish chlorine removal, no ion exchange membrane is needed in this hybrid Faradaic desalination concept.
New paper published in Chemistry of Materials on the use of atomic layer deposition (ALD) to synthesize hybrid electrode materials of tailored mesoporous carbon and vanadium oxide. Using optimized carbon pore structures, pore blocking can be avoided and promising energy storage capacities are enabled for lithium and sodium ion electrolytes.
New paper published in Desalination on the use of a novel multi-channel membrane capacitive deionization unit (using carbon cloth electrodes) for semi-continuous desalination.
New paper published in Journal of Physical Chemistry C on ion electrosorption of ionic liquids. Using the synergy of electrochemical dilatometry and electrochemical quartz crystal microbalance methodology, important information can be derived. We found that the charging mechanism at low charge is characterized by the exchange of more smaller ions by fewer larger ions. At higher charges, the system is changing to preferred counterion adsorption, which is resulting in a strong increase in the electrode volume. This work was in collaboration with Bernhard Roling from Philipps-Universität Marburg.
Collaborator Christian Kozwara presents joint work at the Joint Annual Meeting of Swiss and Austrian Physical Society (SPS/ÖPG) meeting in Geneva, Switzerland. His presentation is entitled “Electrode swelling during ion electrosorption in carbon based supercapacitors”.