Welcome new visiting PhD student Jemma Rowlandson from Valeska Ting‘s team at the University of Bristol, UK! Jemma will be working on bio-derived nanoporous carbons for electrochemical applications in the next 3 months. See also Jemma’s fantastic YouTube science videos (video 1 / video 2 / video 3).
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.
Nicolas Jäckel is presenting an invited oral presentation at the 232nd ECS Meeting in National Harbor near Washington D.C. in the USA. His presentation is titled “In situ monitoring of mechanical properties via multi-length scale approach”.
Welcome to our new student intern Jaehoon Choi. Coming from the Korea University of Technology and Education (Koreatech), he is part of the exchange program and is already the fourth student we have in our team.
Volker Presser is giving a 90 min lecture at the Edgar Lüscher Seminar in Dillingen with the title “Carbon nanomaterials”.
New paper published in ChemSusChem on the use of vanadium pentoxide decorated multiwall carbon nanotubes for energy efficient desalination of brackish water and sea water. This work was in collaboration with the Chair of Functional Materials of Saarland University.
Welcome our new EEIGM Master students Sidonie Carpier and Rose Zwingelstein! Both students will be working on electrochemical materials and will be with us for the next half-year.
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.
Volker Presser is giving the “Materials in Society’ Lecture” at the International Conference on Diamond and Carbon Materials (DCM) in Gothenburg, Sweden. The title of the oral presentation on September, 6th, is: “Carbon and carbon hybrid materials for electrochemical desalination”.
There are two contributions with our work at this year’s Annual Meeting of the International Society of Electrochemistry. On August 29th, Juhan Lee is giving an invited oral presentation wiht the title “Redox-enabling nanoporous carbons for high-performance energy storage” and collaborator Bastian Etzold (TU Darmstadt) is giving an oral talk on “Core-shell carbide-derived carbons as platform for high performance electrochemical energy storage and electrocatalysis”.
Benjamin Krüner is presenting work at the 254th ACS National Meeting & Exposition in Washington DC, USA. His oral presentation has the title “Sub-micrometer novolac-derived carbon beads as electrodes for supercapacitors, redox electrolyte hybrids, and Li-S batteries.”.
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”.
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.
Simon Fleischmann is presenting work at the International Nanoscience Student Conference (INASCON) in Bristol, UK. His oral presentation is entitled “Hybridization of carbon/metal oxides for electrochemical energy storage”.
Christian Prehal from the Institute of Physics at Montanuniversität Leoben (Austria) is presenting joint work on in situ tracking of ion electrosorption in nanoporous carbon at the XXVI International Materials Research Congress (IMRC) in Cancun, Mexico. The invited lecture is entitled “Structure and kinetics of ions in nanoporous carbon supercapacitors studied by in situ X-ray scattering and atomistic modelling”.
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).
Simon Fleischmann and Marco Zeiger are participating at this years installment of the CARBON conference in Melbournce, Australia. Both our PhD students received also a travel fellowship of the German Academic Exchange Organization (DAAD) to cover the conference trip costs. On July 26th, Marco Zeiger is giving a talk called “Designing the carbon/vanadia interface for hybrid electrochemical energy storage” and Simon Fleischmann gives an oral presentation with the title “Carbon onions as substrate/conductive additive for asymmetric vanadia supercapacitor anodes”.