Lettenmeier, Philipp und Majchel, Jan und Wang, Li und Gago, Aldo und Friedrich, K. Andreas (2016) Electrochemical Analysis of Synthetized Iridium Nanoparticles for Oxygen Evolution Reaction in Acid Medium. ECS Transactions, 72 (23), Seiten 1-9. Electrochemical Society, Inc.. doi: 10.1149/07223.0001ecst. ISSN 1938-5862.
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Offizielle URL: http://ecst.ecsdl.org/content/72/23/1.abstract
Kurzfassung
The anode side catalyst is one of the key parts for sustainable hydrogen production via proton exchange membrane (PEM) electrolysis. An optimized synthesis of the oxygen evolution reaction (OER) catalysts may lead to a cost efficient production, promoting the commercialization of new catalyst materials. This work compares the electrochemical characteristics of Ir nanoparticles synthetized in different purities of ethanol and deionized (DI) water as solvents. The use of cetyltrimethyl ammonium bromide (CTAB) as a surfactant is discussed as well. In general, the absence of the surfactant and use of either low ethanol purity or water is detrimental for electrocatalytic properties of the materials. Changes in the Tafel slope are observed, while the analysis of the specific exchange current can be misleading. The active sites from the IrIII/IrIV oxidation peak do not correlate exactly with the OER activities, while the capacitive current provides more meaningful information.
elib-URL des Eintrags: | https://elib.dlr.de/107900/ | ||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
Titel: | Electrochemical Analysis of Synthetized Iridium Nanoparticles for Oxygen Evolution Reaction in Acid Medium | ||||||||||||||||||||||||
Autoren: |
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Datum: | 2016 | ||||||||||||||||||||||||
Erschienen in: | ECS Transactions | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
Band: | 72 | ||||||||||||||||||||||||
DOI: | 10.1149/07223.0001ecst | ||||||||||||||||||||||||
Seitenbereich: | Seiten 1-9 | ||||||||||||||||||||||||
Verlag: | Electrochemical Society, Inc. | ||||||||||||||||||||||||
Name der Reihe: | Hydrogen and Oxygen Evolution Catalysis for Water Electrolysis 2 | ||||||||||||||||||||||||
ISSN: | 1938-5862 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | PEM Electrolyzer, Catalysts, OER, Hydrogen | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||
HGF - Programm: | Speicher und vernetzte Infrastrukturen | ||||||||||||||||||||||||
HGF - Programmthema: | Elektrolyse und Wasserstoff | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | E EV - Energieverfahrenstechnik | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Elektrochemische Prozesse (Elektrolyse) (alt) | ||||||||||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik > Elektrochemische Energietechnik | ||||||||||||||||||||||||
Hinterlegt von: | Lettenmeier, Philipp | ||||||||||||||||||||||||
Hinterlegt am: | 22 Nov 2016 09:59 | ||||||||||||||||||||||||
Letzte Änderung: | 21 Nov 2023 10:37 |
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