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Mechanochemical Synthesis as a Greener Way to Produce Iron‐based Oxygen Reduction Catalysts

Title data

Gernhard, Marius ; Rautenberg, M. ; Hörner, Gerald ; Weber, Birgit ; Emmerling, F. ; Roth, Christina:
Mechanochemical Synthesis as a Greener Way to Produce Iron‐based Oxygen Reduction Catalysts.
Universität Bayreuth
In: Zeitschrift für anorganische und allgemeine Chemie. Vol. 647 (September 2021) . - pp. 2080-2087.
ISSN 1521-3749
DOI: https://doi.org/10.1002/ZAAC.202100194

Abstract in another language

Iron-based catalysts have been reported manifold and studied as platinum group metal (PGM) free alternatives for the catalysis of the oxygen reduction reaction (ORR). However, their sustainable preparation by greener synthesis approaches is usually not discussed. In this work, we propose a new method for the sustainable preparation of such catalysts by using a mechanochemical approach, with no solvents and non-toxic chemicals. The materials obtained from low temperature carbonization (700 °C) exhibit considerable and stable catalytic performance for ORR in alkaline medium. A catalyst obtained from iron hydroxide, tryptophan, dicyandiamide, and ammonium nitrate shows the best electrocatalytic performance with an overpotential of 921 mV vs. RHE at 0.1 mA/cm2 and an electron transfer number of 3.4.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: Dedicated to Professor Josef Breu on the occasion of his 60th birthday
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry IV > Chair Inorganic Chemistry IV - Univ.-Prof. Dr. Birgit Weber
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry IV
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 16 Sep 2021 09:26
Last Modified: 25 Nov 2021 13:31
URI: https://eref.uni-bayreuth.de/id/eprint/67044