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以Pb-(BrO_3^-/Br^-)为媒介间接电氧化合成双醛淀粉 被引量:1

Indirect Electrosynthesis of Double Aldehyde Starch Using Pb-(BrO_3^-/Br^-) as Electro-catalytic Mediator
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摘要 应用间接氧化法,以Pb为阳极,BrO3-/Br-为氧化媒介,电氧化淀粉制备双醛淀粉.研究了温度、硫酸与淀粉浓度对电合成过程的影响.在35℃,阳极液WNaBr=2%,CH2SO4=0.05 mol/L,W淀粉=10%,电流密度15 mA/cm2的实验条件下,电流效率为50%. In this paper, Nation membrane was used as the separator in the electrolysis cell to indirectly electro- generating the double aldehyde starch (DAS) with BrO3^-/Br^- as a redox mediator and Pb as an anode. Effects of temperature, concentration of sulfuric acid and starch on the electro-oxidation of DAS were discussed. The steady state polarization curves were obtained. The experiment results showed that the current efficiency was over 50% when the electrolysis current density was 15mA/cm^2.
出处 《电化学》 CAS CSCD 北大核心 2009年第4期458-461,共4页 Journal of Electrochemistry
基金 福建省教育厅(JB06069 JB05314)资助
关键词 BrO3^-/Br^- 电合成 双醛淀粉 BrO3^-/Br^- eleetrosynthesis dialdehyde starch
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