6533b7d8fe1ef96bd126a5cd
RESEARCH PRODUCT
Electrochemical oxidation of organics at metal oxide electrodes: The incineration of oxalic acid at IrO2-Ta2O5 (DSA-O2) anode
Alessandro GaliaSerena RandazzoGiuseppe FilardoOnofrio Scialdonesubject
Materials scienceGeneral Chemical EngineeringInorganic chemistryOxalic acidOxideElectrochemistryAnodeIncinerationMetalchemistry.chemical_compoundchemistryelectrochemical incineration oxalic acid carboxylic acid IrO2 DSA oxidation of organicsvisual_artElectrodeElectrochemistryvisual_art.visual_art_mediumPolarization (electrochemistry)description
Abstract The electrochemical incineration of oxalic acid (OA) at Ti/IrO2–Ta2O5 (DSA-O2) anode was investigated to find the influence of the operative parameters on the performances of the process. Polarization curves and chronoamperometric measurements indicate the probable occurrence of a direct electrochemical oxidation of OA at the surface of the DSA anode. In incineration electrolyses, the performances of the process in terms of OA conversion and current efficiency dramatically depend on the adopted operative conditions. Interestingly, very high OA removal and current efficiency were obtained when the process was performed at relatively high temperatures (50 °C) or in the presence of NaCl. The experimental results are in good agreement with the previsions of a simple theoretical model previously developed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-01-01 |