{"title":"过氧化氢和铜(II)混合物在氯化物介质中的极谱动力学电流","authors":"I.M. Kolthoff, R. Woods","doi":"10.1016/0022-0728(66)80117-1","DOIUrl":null,"url":null,"abstract":"<div><p>A kinetic current at the dropping mercury electrode is observed in mixtures of hydrogen peroxide and copper(II) in chloride medium in the presence of acid at potentials corresponding to the first copper wave. The kinetic current is due to reaction of copper(I) formed at the electrode with hydrogen peroxide and gives a value of 491 mol<sup>−1</sup> sec<sup>−1</sup> for the rate constant at 25°. The rate constant for this reaction, determined directly is 581 mol<sup>−1</sup> sec<sup>−1</sup>. An adsorbed layer of copper(I) complex at the electrode prevents the electroreduction of hydrogen peroxide.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 5","pages":"Pages 385-390"},"PeriodicalIF":0.0000,"publicationDate":"1966-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80117-1","citationCount":"10","resultStr":"{\"title\":\"Polarographic kinetic currents in mixtures of hydrogen peroxide and copper(II) in chloride medium\",\"authors\":\"I.M. Kolthoff, R. Woods\",\"doi\":\"10.1016/0022-0728(66)80117-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A kinetic current at the dropping mercury electrode is observed in mixtures of hydrogen peroxide and copper(II) in chloride medium in the presence of acid at potentials corresponding to the first copper wave. The kinetic current is due to reaction of copper(I) formed at the electrode with hydrogen peroxide and gives a value of 491 mol<sup>−1</sup> sec<sup>−1</sup> for the rate constant at 25°. The rate constant for this reaction, determined directly is 581 mol<sup>−1</sup> sec<sup>−1</sup>. An adsorbed layer of copper(I) complex at the electrode prevents the electroreduction of hydrogen peroxide.</p></div>\",\"PeriodicalId\":100778,\"journal\":{\"name\":\"Journal of Electroanalytical Chemistry (1959)\",\"volume\":\"12 5\",\"pages\":\"Pages 385-390\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1966-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0022-0728(66)80117-1\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electroanalytical Chemistry (1959)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0022072866801171\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electroanalytical Chemistry (1959)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0022072866801171","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Polarographic kinetic currents in mixtures of hydrogen peroxide and copper(II) in chloride medium
A kinetic current at the dropping mercury electrode is observed in mixtures of hydrogen peroxide and copper(II) in chloride medium in the presence of acid at potentials corresponding to the first copper wave. The kinetic current is due to reaction of copper(I) formed at the electrode with hydrogen peroxide and gives a value of 491 mol−1 sec−1 for the rate constant at 25°. The rate constant for this reaction, determined directly is 581 mol−1 sec−1. An adsorbed layer of copper(I) complex at the electrode prevents the electroreduction of hydrogen peroxide.