Výsledky vyhledávání - "Joachim Langner"

Die Bedeutung der Orientierung am Islam für Extremismuspräventionsangebote in der pädagogischen Arbeit mit muslimischen Jugendlichen

Autor: Joachim Langner, Maren Zschach

Publikováno v: Zeitschrift für Erziehungswissenschaft. 25:61-80

ZusammenfassungDer Beitrag untersucht pädagogische Angebote, die junge Menschen gegen islamistischen Extremismus stärken sollen und fragt, wie Fachkräfte den Islam als Teil ihrer pädagogischen Arbeit verstehen. Auf der empirischen Basis von Inter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::948ede4492ac5fb4c9c3a2afec0a026f
https://doi.org/10.1007/s11618-022-01079-y

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Elektronická kniha

Jugend und islamistischer Extremismus : Pädagogik im Spannungsfeld von Radikalisierung und Distanzierung

Autor: Joachim Langner, Maren Zschach, Marco Schott, Ina Weigelt

Warum wenden Jugendliche sich dem islamistischen Extremismus zu, wie radikalisieren sie sich – und wie können Pädagog:innen einschreiten? Der Band bietet aktuelle empirische Forschungseinblicke zu Hinwendungs- und Distanzierungsprozessen junger M

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Electroless chemical aging of carbon felt electrodes for the all-vanadium redox flow battery (VRFB) investigated by Electrochemical Impedance and X-ray Photoelectron Spectroscopy

Autor: Jakob Schweer, Igor Derr, Christina Roth, Joachim Langner, Abdulmonem Fetyan, Martin Weinelt, Julia Melke, Daniel Przyrembel

Publikováno v: Electrochimica Acta. 246:783-793

Electroless chemical aging of commercially available, porous carbon felt electrodes for the all-vanadium redox flow battery (VRFB) was investigated by full-cell and half-cell measurements in a beaker set-up and a cell with flow-through geometry at di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3feb24b252c8f50f2c803a25dec14b02
https://doi.org/10.1016/j.electacta.2017.06.050

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Effect of oxygen plasma treatment on the electrochemical performance of the rayon and polyacrylonitrile based carbon felt for the vanadium redox flow battery application

Autor: Jörg J. Schneider, Deepu J. Babu, Michael Bruns, Ditty Dixon, Frieder Scheiba, Joachim Langner, Lukas Pfaffmann, Helmut Ehrenberg, Aiswarya Bhaskar

Publikováno v: Journal of Power Sources. 332:240-248

Oxygen plasma treatment was applied on commercially available graphite felt electrodes based on rayon (GFA) and polyacrylonitrile (GFD). The formation of functional groups on the surface of the felt was confirmed by X-ray photoelectron spectroscopy m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fe9501aa9a3801d3f28ae960e55983de
https://doi.org/10.1016/j.jpowsour.2016.09.070

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Degradation of all-vanadium redox flow batteries (VRFB) investigated by electrochemical impedance and X-ray photoelectron spectroscopy: Part 2 electrochemical degradation

Autor: Michael Bruns, Joachim Langner, Christina Roth, Julia Melke, Igor Derr, Abdulmonem Fetyan

Publikováno v: Journal of Power Sources. 325:351-359

Electrochemical degradation (ED) of carbon felt electrodes was investigated by cycling of a flow through all-vanadium redox flow battery (VRFB) and conducting half-cell measurements with two reference electrodes inside the test bench. ED was detected

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bf2eb63608a6ea905250f6ea74a4759
https://doi.org/10.1016/j.jpowsour.2016.06.040

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Electrospun Carbon Nanofibers as Alternative Electrode Materials for Vanadium Redox Flow Batteries

Autor: Joachim Langner, Igor Derr, Christina Roth, Denis Bernsmeier, Ralph Kraehnert, Manoj Krishna Kayarkatte, Abdulmonem Fetyan

Publikováno v: ChemElectroChem. 2:2055-2060

Non-woven carbon nanofiber networks were produced by electrospinning. Electrospinning is a process that can easily be up-scaled, producing carbon fibers that can be used as electrodes with increased surface area and reaction sites. The structure of e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf01fd63b7a7f9f83c8fdc4e7b7470f2
https://doi.org/10.1002/celc.201500284

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Carbon materials for the positive electrode in all-vanadium redox flow batteries

Autor: Helmut Ehrenberg, Julia Melke, Hikmet Sezen, Joachim Langner, Christof Wöll, Peter Jakes, Christina Roth, Ulrike Kunz, Zhirong Zhao-Karger, Lars Riekehr, Alexei Nefedov

Publikováno v: Carbon. 78:220-230

The electrode material in all-vanadium redox flow batteries often consists of fibrous carbon felts. It is believed that surface functional groups such as carboxyl and hydroxyl groups, e.g. introduced by heat-treatment, increase the activity of the ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::668dbacb430a4d570088ca07292bffde
https://doi.org/10.1016/j.carbon.2014.06.075

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Determination of Overpotentials in All Vanadium Redox Flow Batteries

Autor: Joachim Langner, Helmut Ehrenberg, Julia Melke, Christina Roth

Publikováno v: ECS Transactions. 58:1-7

In this work we present a redox-flow battery set-up, into which two reference electrodes were inserted. This system allows for the investigation of individual overpotentials in each half-cell. Further, polarization (E/i) curves were recorded for diff

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65fa848634b6da2106a49ac16db6f87f
https://doi.org/10.1149/05837.0001ecst

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