Room temperature ethyl formate fuel cells for consumer electronics

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Electrochemical oxidation of glucose by Pt/ WO3 electrode

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HOMOGENEOUS AND HETEROGENEOUS CATALYTIC DECOMPOSITION OF HYDROGEN-PEROXIDE BY METALLOPORPHYRIN CARBON-BLACK IN ACID-SOLUTION

The kinetics of hydrogen peroxide decomposition by heat-treated Co-tetramethoxylphenyl-porphyrin(Co-TMPP)/ carbon black and Fe-tetraphenyl-porphyrin(Fe-TPP)/carbon black has been studied by a gasometric method in sulphuric acid. In the former case, the reaction order is 1.26 +/- 0.11, indicating that a combined homogeneous and heterogeneous mechanism is involved. In the latter case, the reaction order is 1.02 +/- 0.11, indicating that a heterogeneous mechanism is involved. The nature of the dissolved species from the heat-treated sample has been studied using UV-visible spectroscopy

HOMOGENEOUS AND HETEROGENEOUS CATALYTIC REACTIONS IN A COBALT OXIDE GRAPHITE AIR ELECTRODE .4. MECHANISTIC STUDIES ON A RING-DISK CARBON ELECTRODE IN ALKALINE-SOLUTION

The redox properties of HCoO2- on a glassy carbon electrode in the absence and presence of hydrogen peroxide have been investigated by using cyclic voltammetry and UV-Vis spectroscopy in alkaline solution. Corresponding rotating ring-disk experiments showed that the disk current increased by about 60% in the presence of HCoO2- confirming the important role played by HCoO2- in the homogeneous decomposition of hydrogen peroxide

Partial oxidation of glucose by a Pt|WO3 electrode

Electrochemical oxidation of D(+)-glucose by a Pt|WO3 electrode in sulphuric acid medium was investigated by HPLC and in-situ FTIR spectroscopy. The oxidation on Pt|WO3 electrode was found to be a multi-step and multi-electron process. The major oxidation products were identified to be glucono-δ-lactone, CO 2 and a probable five-member ring lactone. Based on these observations, the mechanism of glucose oxidation on Pt|WO3 was discussed. © 1997 Elsevier Science S.A.link_to_subscribed_fulltex

Partial oxidation of glucose by a Pt vertical bar WO3 electrode

Electrochemical oxidation of D(+)-glucose by a Pt/WO3 electrode in sulphuric acid medium was investigated by HPLC and in-situ FTIR spectroscopy. The oxidation on Pt/WO3 electrode was found to be a multi-step and multi-electron process. The major oxidation products were identified to be glucono-delta-lactone, CO2 and a probable five-member ring lactone. Based on these observations, the mechanism of glucose oxidation on Pt/WO3 was discussed. (C) 1997 Elsevier Science S.A