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首页> 外文期刊>Electroanalysis >Electrocatalytic reduction of peroxy disulfate on the palladized aluminum electrode modified by prussian blue: Application to the analysis of decolorizing powders
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Electrocatalytic reduction of peroxy disulfate on the palladized aluminum electrode modified by prussian blue: Application to the analysis of decolorizing powders

机译：普鲁士蓝修饰的钯铝电极上的电催化还原过氧二硫酸盐：在脱色粉末分析中的应用

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摘要

The mechanism of catalytic reduction of peroxydisulfate on the palladized aluminum electrode modified by Prussian blue (PB/Pd-Al) was studied. The charge transfer-rate limiting step as well as overall reduction reaction of S_2O_8~(2-) is found to be a one-electron and two-electron abstraction respectively. The modified electrode is exploited for the hydrodynamic amperometry of peroxydisulfate. It is found that the calibration graph is linear in the S_2O_8~(2-)concentration range 5×10~(-6)-1.5×10~(-3) molL~(-1). The detection limit of the method was 2.4×10~(-6) molL~(-1) S_2O_8~2. The method was successfully used for the determination of S_2O_8~(2-) in decolorizing powders.
机译：研究了在普鲁士蓝（PB / Pd-Al）修饰的钯铝电极上催化还原过氧二硫酸盐的机理。 S_2O_8〜（2-）的电荷转移速率限制步骤以及整体还原反应分别是一个单电子和两个电子。修饰的电极用于过氧二硫酸盐的流体力学安培法。发现校正曲线在S_2O_8〜（2-）浓度范围5×10〜（-6）-1.5×10〜（-3）molL〜（-1）内呈线性关系。该方法的检出限为2.4×10〜（-6）molL〜（-1）S_2O_8〜2。该方法成功用于脱色粉末中S_2O_8〜（2-）的测定。

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