Nanoscale structural disorder in manganese oxide particles embedded in Nafion

Chang, Shery L.Y., Singh, Archana, Hocking, Rosalie K., Dwyer, Christian, and Spiccia, Leone (2014) Nanoscale structural disorder in manganese oxide particles embedded in Nafion. Journal of Materials Chemistry A, 2 (11). pp. 3730-3733.

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Abstract

Earlier studies have shown that manganese oxide particles derived from a manganese molecular complex embedded in a Nafion film have one order of magnitude higher water-oxidation catalytic activity per manganese compared to many unsupported solid-state manganese oxide particles. Using transmission electron microscopy and electron scattering simulations, we have shown that the sodium-birnessite phase particles in Nafion exhibit an exceptionally high degree of layer mis-registration, and a high concentration of Mn vacancies, compared to the synthetic birnessite nanoparticles. It is therefore proposed that the differences in the activities correlate with the degree of disorder in the manganese oxide particles.

Item ID: 32939
Item Type: Article (Research - C1)
ISSN: 2050-7496
Funders: ARC Centre of Excellence for Electromaterials Science (ACES)
Date Deposited: 30 Apr 2014 09:44
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030207 Transition Metal Chemistry @ 100%
SEO Codes: 85 ENERGY > 8505 Renewable Energy > 850504 Solar-Photovoltaic Energy @ 100%
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