Suseno, Sandy and Kaiser, Jens and Tran, Rosalie and McCrory, Charles C. and Rittle, Jonathan and Yano, Junko and Agapie, Theodor (2014) Synthesis of mixed-metal transition metal oxido cubanes (MMn_3O_4) and their potential as prescursors for water oxidation electrocatalysts. In: 248th American Chemical Society National Meeting & Exposition, August 10-14, 2014, San Francisco, CA. https://resolver.caltech.edu/CaltechAUTHORS:20140812-144111056
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Abstract
The study of mixed transition metal oxido cubane complexes is crucial to the development of materials for oxygen evolution reaction, oxygen redn. reaction, and energy storage. A discreet series of heterometallic trimanganese-tetraoxido cubanes (MMn_3O_4 ; M = Fe, Co, Ni, Cu) supported by a trisalkoxy-hexapyridyl ligand with a 1, 3,5-triarylbenzene spacer were synthesized and characterized by single crystal X-ray diffraction, dispersive difference diffraction anal., cyclic voltammetry, Mossbauer spectroscopy, and X-ray absorption spectroscopy. To det. their potential as precursors for heterogeneous water oxidn. electrocatalysts, these well-defined complexes were drop-casted on electrodes, and electrolysis of the material was performed in basic aq. media. Oxygen evolution was obsd., and the activity was compared to a few other mixed metal oxide electrocatalysts reported in literature. Electrolysis of MMn_3O_4 resulted in the different ratio of M to Mn in the final material depending on the metal M (M = Co, Ni) as characterized by XPS and energy dispersive X-ray spectroscopy. X-ray absorption spectroscopy shows the retention of the cubane moiety in the post-electrolysis NiMn_3O_4 materials.
Item Type: | Conference or Workshop Item (Paper) | ||||||||||
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Alternate Title: | Synthesis of mixed-metal transition metal oxido cubanes (MMn3O4) and their potential as prescursors for water oxidation electrocatalysts | ||||||||||
Additional Information: | © 2014 American Chemical Society. | ||||||||||
Record Number: | CaltechAUTHORS:20140812-144111056 | ||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140812-144111056 | ||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
ID Code: | 48435 | ||||||||||
Collection: | CaltechAUTHORS | ||||||||||
Deposited By: | Tony Diaz | ||||||||||
Deposited On: | 12 Aug 2014 21:48 | ||||||||||
Last Modified: | 09 Mar 2020 13:18 |
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