Palladium-polypyrrole (Pd-PPy) composites synthesized via one-step and one-pot redox procedure have been tested as electrocatalysts for formaldehyde oxidation in aqueous solution under both inert and oxygen atmospheres. It has clearly been shown that inert electrode coated by the Pd-PPy composites demonstrates a high catalytic activity. Electrochemical response of Pd-PPy modified electrodes depends on the anodic potential range, pH and concentration of formaldehyde in solution as well as on the presence of oxygen in reaction atmosphere. It has been found that Pd-PPy composites are prospective materials for amperometric detection of formaldehyde in aqueous solution, even under oxygen atmosphere, as well as in the presence of methanol or/and formate-anions.

通过一步和一锅式氧化还原程序合成的钯-聚吡咯（Pd-PPy）复合材料已被测试为在惰性和氧气气氛下在水溶液中甲醛氧化的电催化剂。清楚地表明，由Pd-PPy复合材料涂覆的惰性电极表现出高催化活性。Pd-PPy修饰电极的电化学响应取决于阳极电位范围，溶液中甲醛的pH和浓度以及反应气氛中氧气的存在。已经发现，Pd-PPy复合材料是用于在水溶液中甚至在氧气气氛下以及在甲醇或/和甲酸酯阴离子存在下安培检测甲醛的潜在材料。