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- W2018425161 abstract "This paper details the electrochemical investigation of a deuteroporphyrin dimethylester (DPDE) rhodium(III) ((DPDE)RhIII) complex, immobilized within a MWCNT/Nafion electrode, and its integration into a molecular catalysis-based glucose fuel cell. The domains of present (DPDE)RhI, (DPDE)Rh–H, (DPDE)RhII, and (DPDE)RhIII were characterized by surface electrochemistry performed at a broad pH range. The Pourbaix diagrams (plots of E1/2 vs pH) support the stability of (DPDE)RhII at intermediate pH and the predominance of the two-electron redox system (DPDE)RhI/(DPDE)RhIII at both low and high pH. This two-electron system is especially involved in the electrocatalytic oxidation of alcohols and was applied to the glucose oxidation. The catalytic oxidation mechanism exhibits an oxidative deactivation coupled with a reductive reactivation mechanism, which has previously been observed for redox enzymes but not yet for a metal-based molecular catalyst. The MWCNT/(DPDE)RhIII electrode was finally integrated in a novel design of an alkaline glucose/O2 fuel cell with a MWCNT/phthalocyanin cobalt(II) (CoPc) electrode for the oxygen reduction reaction. This nonenzymatic molecular catalysis-based glucose fuel cell exhibits a power density of Pmax = 0.182 mW cm–2 at 0.22 V and an open circuit voltage (OCV) of 0.64 V." @default.
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- W2018425161 date "2012-08-16" @default.
- W2018425161 modified "2023-10-18" @default.
- W2018425161 title "Electrocatalytic Oxidation of Glucose by Rhodium Porphyrin-Functionalized MWCNT Electrodes: Application to a Fully Molecular Catalyst-Based Glucose/O<sub>2</sub> Fuel Cell" @default.
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- W2018425161 doi "https://doi.org/10.1021/ja304589m" @default.
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