Welcome to the Freunberger laboratory website!
Our primary research interest lies in the fundamental science of electron and ion conducting and redox active materials (inorganic, organic and polymeric) and their mutual interactions in the working environment of electrochemical devices. Particularly materials science related to electrochemical energy storage devices such as rechargeable batteries. This field has expanded greatly due to the increasing need for clean and efficient mobile energy sources. The foundations of our research are (i) synthesis of new conducting and redox active materials and fundamental understanding of charge carrier transport and electrochemical reactions, (ii) advanced physical‐chemical and spectroscopic investigations to understand the mutual behaviour of the materials in the working environment and the surface and interface processes, and (iii) the application in the electrochemical device that is a complex electrochemical reactor.
Energy & Environmental Science | July 2019
Singlet oxygen from cation driven superoxide disproportionation and consequences for aprotic metal-O2 batteries
E. Mourad, Y.K. Petit, […], S. Brutti, S.A. Freunberger
Nature Communications | March 2019
Deactivation of redox mediators in lithium-oxygen batteries by singlet oxygen
W-J. Kwak, […], Y.K. Petit, […], S.A. Freunberger, Y.-K. Sun
Angewandte Chemie | March 2019
DABCOnium: An Efficient and High‐voltage Stable Singlet Oxygen Quencher for Metal‐O2 Cells
Y.K. Petit, C. Leypold, N. Mahne, […] S.A. Freunberger
ACS Nano | June 2018
Inter-Backbone Charge Transfer as Prerequisite for Long-Range Conductivity in Perylene Bisimide Hydrogels
M. Burian, […], S.A. Freunberger, H. Amenitsch, M. Prato, Z. Syrgiannis
Chemistry of Materials | May 2018
Long Chain Li and Na Alkyl Carbonates as Solid Electrolyte Interphase Components: Structure, Ion Transport and Mechanical Properties
L. Schafzahl, […], S.A. Freunberger
Angewandte Chemie | March 2018
Electrochemical Oxidation of Lithium Carbonate Generates Singlet Oxygen
N. Mahne, S.E. Renfrew, B.D. McCloskey, S.A. Freunberger
Singlet oxygen forms in the Na-O2 at all stages of cycling and is a main driver for parasitic chemistry.…. show more
L. Schafzahl, [...], S. M. Borisov, S.A. Freunberger
Only performance metrics that include all cell components and operation parameters can tell whether a true advance over intercalation batteries has been achieved.…. show more
S.A. Freunberger
Nature Energy | March 2017
Singlet oxygen generation as a main cause for parasitic reactions during cycling of aprotic lithium-oxygen batteries
N. Mahne, O. Fontaine […] S.A. Freunberger
16.07.2019:
Our Energy & Environmental Science paper revealing a unified mechanism of 1O2 generation and hence side reactions in metal-O2 cells just appeared. Great collaboration with Sergio’s group at Sapienza University and colleagues from Montpellier, Basilicata and Paris.
26.03.2019:
Our Nature Communications on the deactivation of redox mediators by 1O2 just appeared. Great collaboration with the groups of Y.K. Sun from Hanyang University and L. Curtiss from Argonne.
18.03.2019:
Our Angew. Chem. communication reporting on DABCOnium as high-voltage stable 1O2 quencher for metal-O2 cells just appeared as Very Important Paper.
08.10.2018:
Christian published in Nature Communications on the charge storage mechanism in supercapacitors. Congratulations!
10.08.2018:
Stefan has won the Tajima Prize 2018 of the International Society of Electrochemistry.
01.07.2018:
Welcome to Alen and Daniel as new (visiting) group members.
25.05.2018:
Nika’s Ph.D. exam concludes a series of 3 exams in a row after Bettina and Lukas. All well done!
31.01.2018:
Our Angew. Chem. communication that identifies 1O2 upon oxidizing Li2CO3 was just accepted as Very Important Paper. Great collaboration with the McCloskey Lab
31.01.2018:
Congrats to Eléonore, Oli and the team for receiving Le Prix 2017 la Recherche for the Nature Materials paper.
18.12.2017:
Our paper on quantification of total (su)peroxide and carbonaceous compounds is now online at ACS Energy Letters .
30.11.2017:
The 2012 Nature Materials review reached 3000 citations on ISI Web ob Knowledge.
8.11.2017:
A contribution to the Junge Akademie blog went online on derStandard.at about our recent papers on 1O2 in Nature Energy and Angew. Chem.
11.10.2017:
Our paper on 1O2 in the Na-O2 cell was accepted as Very Important Paper for Angew. Chem. and is now online.
16.9.2017:
Congratulations to Bettina for winning the Best Lecturer Award at the Danube Vlatava Sava Polymer Meeting for her presentation "Porous poly(dicyclopentadiene) based cathode materials for lithium-oxygen batteries".
16.9.2017:
Our new homepage is online. Thanks to Michael Süßenbacher for the great programming!