The galvanostatic oxidation of aldehydes to acids on Ti/Ru0.3Ti0.7O2 electrodes using a filter-press cell

Journal of the Brazilian Chemical Society

Universidade de São Paulo, São Carlos, Brazil¹  Malpass, Geoffroy R. P.¹  Motheo, Artur J.¹ 

关键词: Dimensionally Stable Anodes;    mixed Ti-Ru oxides;    electrochemical oxidation;    aldehydes;   

DOI  :  10.1590/S0103-50532003000100011

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

Results for the galvanostatic oxidation of formaldehyde, acetaldehyde, propionaldehyde andn-butyraldehyde in 0.5 mol dm-3 H2SO4 at Ti/Ru0.3Ti0.7O2 DSA® type electrodes, using a filter-press cell, are presented. The observed products are the respective carboxylic acids and CO2. In the case of formaldehyde the additional presence of CO32- is detected as a product. The carbon balance is observed to decrease with electrolysis time due to the partial liberation of the aldehyde in solution as a gas. The partial liberation of aldehyde gases increases with chain length and in this way the conversion of reactants to products decreases, as does the efficiency of the electro-oxidation process.

【 授权许可】

Unknown