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Tran, Minh Hai ; Schäfer, Timo ; Shahraei, Ali ; Dürrschnabel, Michael ; Molina-Luna, Leopoldo ; Kramm, Ulrike I. ; Birkel, Christina S. :
Adding a New Member to the MXene Family: Synthesis, Structure and Electrocatalytic Activity for the Hydrogen Evolution Reaction of V4C3Tx.
In: ACS Applied Energy Materials
[Artikel] , (2018) (Im Druck)

Tran, Minh H. ; Schäfer, Timo ; Shahraei, Ali ; Dürrschnabel, Michael ; Molina-Luna, Leopoldo ; Kramm, Ulrike I. ; Birkel, Christina S. :
Adding a New Member to the MXene Family: Synthesis, Structure, and Electrocatalytic Activity for the Hydrogen Evolution Reaction of V4C3Tx.
[Online-Edition: https://doi.org/10.1021/acsaem.8b00652]
In: ACS Applied Energy Materials, 1 (8) pp. 3908-3914. ISSN 2574-0962
[Artikel] , (2018)

Leonard, Nathaniel D. ; Wagner, Stephan ; Luo, Fang ; Steinberg, Julian ; Ju, Wen ; Weidler, Natascha ; Wang, Huan ; Kramm, Ulrike I. ; Strasser, Peter :
Deconvolution of Utilization, Site Density, and Turnover Frequency of Fe–Nitrogen–Carbon Oxygen Reduction Reaction Catalysts Prepared with Secondary N-Precursors.
[Online-Edition: https://doi.org/10.1021/acscatal.7b02897]
In: ACS Catalysis, 8 (3) pp. 1640-1647. ISSN 2155-5435
[Artikel] , (2018)

Chenitz, Régis ; Kramm, Ulrike I. ; Lefèvre, Michel ; Glibin, Vassili ; Zhang, Gaixia ; Sun, Shuhui ; Dodelet, Jean-Pol :
A specific demetalation of Fe–N4 catalytic sites in the micropores of NC_Ar + NH3 is at the origin of the initial activity loss of the highly active Fe/N/C catalyst used for the reduction of oxygen in PEM fuel cells.
[Online-Edition: https://doi.org/10.1039/C7EE02302B]
In: Energy & Environmental Science, 11 (2) pp. 365-382. ISSN 1754-5692
[Artikel] , (2018)

Martinaiou, Ioanna ; Wolker, Thomas ; Shahraei, Ali ; Zhang, Gui-Rong ; Janßen, Arne ; Wagner, Stephan ; Weidler, Natascha ; Stark, Robert W. ; Etzold, Bastian J. M. ; Kramm, Ulrike I. :
Improved electrochemical performance of Fe-N-C catalysts through ionic liquid modification in alkaline media.
[Online-Edition: https://doi.org/10.1016/j.jpowsour.2017.07.028]
In: Journal of Power Sources, 375 pp. 222-232. ISSN 03787753
[Artikel] , (2018)

Chenitz, Régis ; Kramm, Ulrike I. ; Lefèvre, Michel ; Glibin, Vassili ; Zhang, Gaixia ; Sun, Shuhui ; Dodelet, Jean-Pol :
A specific demetalation of Fe–N4 catalytic sites in the micropores of NC_Ar + NH3 is at the origin of the initial activity loss of the highly active Fe/N/C catalyst used for the reduction of oxygen in PEM fuel cells.
[Online-Edition: https://doi.org/10.1039/c7ee02302b]
In: Energy & Environmental Science, 11 (2) pp. 365-382. ISSN 1754-5692
[Artikel] , (2018)

Martinaiou, Ioanna ; Shahraei, Ali ; Grimm, Fabian ; Zhang, Hongbin ; Wittich, Carolin ; Klemenz, Sebastian ; Dolique, Stephanie J. ; Kleebe, Hans-Joachim ; Stark, Robert W. ; Kramm, Ulrike I. :
Effect of metal species on the stability of Me-N-C catalysts during accelerated stress tests mimicking the start-up and shut-down conditions.
[Online-Edition: https://doi.org/10.1016/j.electacta.2017.04.134]
In: Electrochimica Acta, 243 pp. 183-196. ISSN 00134686
[Artikel] , (2017)

Shahraei, Ali ; Moradabadi, Ashkan ; Martinaiou, Ioanna ; Lauterbach, Stefan ; Klemenz, Sebastian ; Dolique, Stephanie ; Kleebe, Hans-Joachim ; Kaghazchi, Payam ; Kramm, Ulrike I. :
Elucidating the Origin of Hydrogen Evolution Reaction Activity in Mono- and Bimetallic Metal- and Nitrogen-Doped Carbon Catalysts (Me–N–C).
[Online-Edition: https://doi.org/10.1021/acsami.7b01647]
In: ACS Applied Materials & Interfaces, 9 (30) pp. 25184-25193. ISSN 1944-8244
[Artikel] , (2017)

Hamm, Christin M. ; Bocarsly, Joshua D. ; Seward, Gareth ; Kramm, Ulrike I. ; Birkel, Christina S. :
Non-conventional synthesis and magnetic properties of MAX phases (Cr/Mn)2AlC and (Cr/Fe)2AlC.
[Online-Edition: https://doi.org/10.1039/C7TC00112F]
In: J. Mater. Chem. C, 5 (23) pp. 5700-5708. ISSN 2050-7526
[Artikel] , (2017)

Hamm, Christin M. ; Bocarsly, Joshua D. ; Seward, Gareth ; Kramm, Ulrike I. ; Birkel, Christina S. :
Non-conventional synthesis and magnetic properties of MAX phases (Cr/Mn)2AlC and (Cr/Fe)2AlC.
[Online-Edition: https://doi.org/10.1039/C7TC00112F]
In: Journal of Materials Chemistry C, 5 (23) pp. 5700-5708. ISSN 2050-7526
[Artikel] , (2017)

Busch, Michael ; Halck, Niels B. ; Kramm, Ulrike I. ; Siahrostami, Samira ; Krtil, Petr ; Rossmeisl, Jan :
Beyond the top of the volcano? – A unified approach to electrocatalytic oxygen reduction and oxygen evolution.
[Online-Edition: https://doi.org/10.1016/j.nanoen.2016.04.011]
In: Nano Energy, 29 pp. 126-135. ISSN 22112855
[Artikel] , (2016)

Kramm, Ulrike I. ; Herrmann-Geppert, Iris ; Behrends, Jan ; Lips, Klaus ; Fiechter, Sebastian ; Bogdanoff, Peter :
On an Easy Way To Prepare Metal–Nitrogen Doped Carbon with Exclusive Presence of MeN4-type Sites Active for the ORR.
[Online-Edition: https://doi.org/10.1021/jacs.5b11015]
In: Journal of the American Chemical Society, 138 (2) pp. 635-640. ISSN 0002-7863
[Artikel] , (2016)

Kramm, Ulrike I. ; Herrmann-Geppert, Iris ; Behrends, Jan ; Lips, Klaus ; Fiechter, Sebastian ; Bogdanoff, Peter :
On an easy way to prepare Metal-Nitrogen doped Carbon with exclusive presence of MeN4-type sites active for the ORR.
[Online-Edition: http://dx.doi.org/10.1021/jacs.5b11015]
In: Journal of the American Chemical Society ISSN 0002-7863
[Artikel] , (2016)

Brüller, Sebastian ; Liang, Hai-Wei ; Kramm, Ulrike I. ; Krumpfer, Joseph W. ; Feng, Xinliang ; Müllen, Klaus :
Bimetallic porous porphyrin polymer-derived non-precious metal electrocatalysts for oxygen reduction reactions.
[Online-Edition: http://dx.doi.org/10.1039/C5TA06309D]
In: J. Mater. Chem. A, 3 (47) pp. 23799-23808. ISSN 2050-7488
[Artikel] , (2015)

Kramm, Ulrike I.
Feng, Xinliang (ed.) :

Spectroscopic Analysis of Nanocarbon-Based non-precious Metal Catalyst for ORR.
[Online-Edition: http://dx.doi.org/10.1002/9783527680016.ch5]
In: Nanocarbons for Advanced Energy Conversion. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany, Weinheim, Germany , pp. 117-148. ISBN 9783527336661
[Buchkapitel] , (2015)

Sahraie, Nastaran Ranjbar ; Kramm, Ulrike I. ; Steinberg, Julian ; Zhang, Yuanjian ; Thomas, Arne ; Reier, Tobias ; Paraknowitsch, Jens-Peter ; Strasser, Peter :
Quantifying the density and utilization of active sites in non-precious metal oxygen electroreduction catalysts.
[Online-Edition: http://dx.doi.org/10.1038/ncomms9618]
In: Nature Communications, 6 p. 8618. ISSN 2041-1723
[Artikel] , (2015)

Kramm, Ulrike I. ; Zana, Alessandro ; Vosch, Tom ; Fiechter, Sebastian ; Arenz, Matthias ; Schmeißer, Dieter :
On the structural composition and stability of Fe–N–C catalysts prepared by an intermediate acid leaching.
[Online-Edition: http://dx.doi.org/10.1007/s10008-015-3060-z]
In: Journal of Solid State Electrochemistry pp. 1-13. ISSN 1432-8488
[Artikel] , (2015)

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