Browsing by Author "ac03b41c-e056-495f-94a8-c3a166e229c0"
Now showing items 1-16 of 16
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Characterisation of a polyaromatic PBI blend membrane for SO2 electrolysis
Krüger, Andries J.; Kerres, Jochen; Bessarabov, Dmitri; Krieg, Henning M.; Cichon, Patrizia (Elsevier, 2015)The application of a polyaromatic acid–base blend membrane from partially fluorinated and sulfonated aromatic polyether and the polybenzimidazole F6PBI has been investigated for hydrogen production using SO2 electrolysis. ... -
Cross-linked PBI-based high-temperature membranes: stability, conductivity and fuel cell performance
Kerres, Jochen; Atanasov, Vladimir (Elsevier, 2015)In this study different types of polybenzimidazole(PBI)-based High-T fuel cell membranes were investigated comparatively. The different membranes comprised: (1) ionically cross-linked PBI-excess blend membranes by mixing ... -
Development and testing of an anion exchange membrane electrolyser
Manolova, Mila; Kerres, Jochen; Schoeberl, Claudia; Freudenberger, Renate; Ellwein, Corina (Elsevier, 2015)In the context of energy policy and the use of renewable energies, our research institute collaborates with other partners on the development of a compact, environmental-friendly and effective electrolyser for efficient ... -
Electrospun sulfonated poly(ether ketone) nanofibers as proton conductive reinforcement for durable Nafion composite membranes
Klose, Caroline; Kerres, Jochen; Breitwieser, Matthias; Vierrath, Severin; Klingele, Matthias (Elsevier, 2017)We show that the combination of direct membrane deposition with proton conductive nanofiber reinforcement yields highly durable and high power density fuel cells. Sulfonated poly(ether ketone) (SPEK) was directly electrospun ... -
ETFE-g-pentafluorostyrene: functionalization and proton conductivity
Atanasov, Vladimir; Kerres, Jochen (Elsevier, 2015)In this study we propose a relatively simple and versatile method for the preparation of a polyelectrolyte membrane based on poly(pentafluorostyrene) (PFS) owing proton exchange functionalities for proton conducting ... -
Highly phosphonated polypentafluorostyrene blended with polybenzimidazole: application in vanadium redox flow battery
Bülbül, Ezgi; Kerres, Jochen; Atanasov, Vladimir; Mehlhorn, Marcus; Bürger, Matthias (Elsevier, 2019)This study discusses the synthesis and preparation of ionically cross-linked acid-base blend membranes based on phosphonated poly(pentafluorostyrene) and poly(benzimidazole) for vanadium redox flow battery application ... -
Novel cross-linked partially fluorinated and non-fluorinated polyaromatic PBI-containing blend membranes for SO2 electrolysis
Peach, Retha; Krieg, Henning M.; Krüger, Andries J.; Rossouw, Jacobus J.C.; Bessarabov, Dmitri; Kerres, Jochen (Elsevier, 2016)Various partially fluorinated and non-fluorinated polyaromatic and PBI blend components were covalent-ionically cross-linked to obtain proton exchange membranes that can be applied in an SO2 electrolyser. During SO2 ... -
Novel cross-linked PBI-blended membranes evaluated for high temperature fuel cell application and SO2 electrolysis
Peach, Retha; Krieg, Henning M.; Krüger, Andries J.; Bessarabov, Dmitri; Kerres, Jochen (Elsevier, 2018)Within this study various partially fluorinated polyaromatic and PBI blend components were covalent-ionically cross-linked to obtain acid and base-excess proton exchange membranes that can be applied in high temperature ... -
Novel imidazolium-functionalized anion-exchange polymer PBI blend membranes
Morandi, Carlo Gottardo; Peach, Retha; Krieg, Henning M.; Kerres, Jochen (Elsevier, 2015)The potential application of anion-exchange membranes (AEMs) in alkaline fuel cells has recently experienced renewed attention as an alternative to the cation-exchange membranes used in proton exchange fuel cell (PEMFC). ... -
Novel morpholinium-functionalized anion-exchange PBI-polymer blends
Morandi, Carlo Gottardo; Peach, Retha; Krieg, Henning M.; Kerres, Jochen (RSC, 2015)Novel morpholinium-functionalized anion-exchange blend membranes are presented in this study. The blended membranes consist of highly brominated poly(aryl ether) (PAE-Br) or poly(2,6-dimethyl-1,4-phenyleneoxide) (PPO-Br), ... -
Novel phosphoric acid-doped PBI-blends as membranes for high-temperature PEM fuel cells
Mack, Florian; Kerres, Jochen; Aniol, Karin; Ellwin, Corina; Zeis, Roswitha (RSC, 2015)Novel acid–base blend membranes for application in high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) were synthesized and characterized. The acid–base blend membranes demonstrated high thermal and excellent ... -
Perfluoro-p-xylene as a new unique monomer for highly stable arylene main-chain ionomers applicable to low-t and high-t fuel cell membranes
Hajdok, Imre; Kerres, Jochen; Atanasov, Vladimir (MDPI, 2015)In this study, we present the synthesis and the characterization of novel functionalized arylene main-chain ionomers based on perfluoro-p-xylene (PFX). The polymers were prepared by polycondensation of PFX and 4,4'-dihyd ... -
Phosphonic acid functionalized poly(pentafluorostyrene) as polyelectrolyte membrane for fuel cell application
Atanasov, Vladimir; Kerres, Jochen; Oleynikov, Andrey; Xia, Jiabing; Lyonnard, Sandrine (Elsevier, 2017)In this paper we introduce polyelectrolyte membranes based on phosphonated poly(pentafluorostyrene) (PPFS) and their performances in a fuel cell. The polyelectrolytes were obtained via partial phosphonation of PPFS varying ... -
Simple fabrication of 12 μm thin nanocomposite fuel cell membranes by direct electrospinning and printing
Breitwieser, Matthias; Kerres, Jochen; Klose, Carolin; Klingele, Matthias; Hartmann, Armin (Elsevier, 2017)Direct membrane deposition (DMD) was recently introduced as a novel polymer electrolyte membrane fabrication method. Here, this approach is extended to fabricate 12 μm thin nanocomposite fuel cell membranes. Poly(vinylidene ... -
Stability of acid-excess acid-base blend membranes in all-vanadium redox-flow batteries
Chromik, Andreas; Kerres, Jochen; Dos Santos, Antonio R.; Turek, Thomas; Kunz, Ulrich (Elsevier, 2015)In this contribution the performance of two acid–base blend membranes in an all-vanadium redox-flow battery (VRFB) is studied. The first membrane is a nonfluorinated acid–base blend membrane composed of a sulfonated ... -
Sulfonated poly(arylene thioether phosphine oxide)s and poly(arylene ether phosphine oxide)s PBI-blend membranes and their performance in SO2 electrolysis
Cichon, Patrizia J.; Krüger, Andries J.; Krieg, Henning M.; Bessarabov, Dmitri; Kerres, Jochen (Elsevier, 2016)As part of the global initiative for producing electricity using non-carbon based, renewable energy sources, the production of hydrogen as an energy carrier has received increased interest. One such production method is ...