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MnO2 based electrochemical enzyme-free glucose sensors remains significantly limited by its low electronic conductivity and associated complex preparation. In this paper, MnO2 nanosheets array supported on nickel foam (MnO2 NS/NF)...

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An alternative method to determine the oxygen storage capacity (OSC) for powder materials is proposed in the current work. Dynamic and static OSC measurements were conducted at 510°C using a thermally aged Pd loaded cerium zirconium oxide (30 wt% ceria, 1 wt% Pd). Particularly the influence of water and carbon dioxide in the gas feed on OSC determination was studied. The results demonstrate that the absence of H 2 O/CO 2 and a static test procedure lead to overrated oxygen storage capacities. The method proposed here provides a simple, but not oversimplified method to determine the oxygen storage capacity under conditions closer to real applications by imitating the transient working mode of a gasoline engine and paying more attention to the exhaust gas composition.