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Journal of Electroanalytical Chemistry (1959)最新文献

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The effect of the structure of the alkyl group on the polarographic waves corresponding to catalytic hydrogen evolution by organic sulphoxides 烷基结构对有机硫化物催化析氢极谱波的影响
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80038-4
L. Suchomelova, J. Zýka, P. Zuman
{"title":"The effect of the structure of the alkyl group on the polarographic waves corresponding to catalytic hydrogen evolution by organic sulphoxides","authors":"L. Suchomelova,&nbsp;J. Zýka,&nbsp;P. Zuman","doi":"10.1016/0022-0728(66)80038-4","DOIUrl":"10.1016/0022-0728(66)80038-4","url":null,"abstract":"<div><p>Changes of the catalytic waves of dialkyl sulphoxides with changes in the structure indicate that the heights of these waves are not governed by a single effect—such as acid-base equilibria and rates, adsorptivity or steric effects—but by simultaneous contributions from at least two of these factors.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 194-198"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80038-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Cells for chronopotentiometry and cyclic voltammetry 计时电位法和循环伏安法用细胞
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80041-4
Willard R. Ruby, Carl G. Tremmel
{"title":"Cells for chronopotentiometry and cyclic voltammetry","authors":"Willard R. Ruby,&nbsp;Carl G. Tremmel","doi":"10.1016/0022-0728(66)80041-4","DOIUrl":"10.1016/0022-0728(66)80041-4","url":null,"abstract":"<div><p>The construction and use of two types of electrolysis cells embodying some novel features are described. The cells are designed for simplicity of operation, reproducible alignment of electrode elements, and a symmetrical arrangement of these elements to conform with the best electrochemical practice. One type of cell has been extensively used in chronopotentiometric determinations, the other in cyclic voltammetry. Both gave highly reproducible results.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 216-219"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80041-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
The dropping gallium electrode in fused LiNO3-KNO3 eutectic 熔融LiNO3-KNO3共晶中镓电极滴下
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80042-6
R.B. Escue, T.H. Tidwell, D.K. Dickie
{"title":"The dropping gallium electrode in fused LiNO3-KNO3 eutectic","authors":"R.B. Escue,&nbsp;T.H. Tidwell,&nbsp;D.K. Dickie","doi":"10.1016/0022-0728(66)80042-6","DOIUrl":"10.1016/0022-0728(66)80042-6","url":null,"abstract":"<div><p>A study was made of the properties of the dropping gallium electrode (DGE) in fused LiNO<sub>3</sub>-KNO<sub>3</sub> eutectic at 180°, and the properties compared to those of the dropping mercury electrode (DME) at the same temperature in the same melt. A reduction wave at −0.4 V <em>vs</em>. Pt was noted on both gallium and mercury for a melt species which was probably NO<sub>2</sub>. No direct reduction of the many metal ions studied was observed on gallium. Pb(II) gave a reduction wave on gallium, but the wave diminished with time and disappeared in a few hours. The Heyrovsky-Ilkovic plot of the wave indicates that this is an enhanced NO<sub>2</sub> wave. The oxidizing properties of the melt seem to impair the usefulness of the gallium electrode in nitrate melts since gallium appears to become oxide-coated. This oxide layer may cause the metal-ion reduction potentials to be more negative than can be obtained in this melt.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 220-224"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80042-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
An electrochemical study of the oxidation of L-cysteine l -半胱氨酸氧化的电化学研究
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80047-5
Donald G. Davis, Eileen Blanco
{"title":"An electrochemical study of the oxidation of L-cysteine","authors":"Donald G. Davis,&nbsp;Eileen Blanco","doi":"10.1016/0022-0728(66)80047-5","DOIUrl":"10.1016/0022-0728(66)80047-5","url":null,"abstract":"<div><p>The oxidation of cysteine has been studied at platinum electrodes by chronopotentiometry, polarography, and controlled-potential electrolysis. Although the major product was found to be cystine, the electrode reaction(s) is kinetically complex and is greatly suppressed by the formation of an oxide film or surface oxygen.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 254-260"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80047-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 66
Chronopotentiometric investigation of the reduction of chromate in alkaline solutions 铬酸盐在碱性溶液中还原的时间电位法研究
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80046-3
Peter James Lingane, Fred C. Anson , Robert A. Osteryoung
{"title":"Chronopotentiometric investigation of the reduction of chromate in alkaline solutions","authors":"Peter James Lingane,&nbsp;Fred C. Anson ,&nbsp;Robert A. Osteryoung","doi":"10.1016/0022-0728(66)80046-3","DOIUrl":"10.1016/0022-0728(66)80046-3","url":null,"abstract":"<div><p>The chronopotentiometric reduction of chromate on mercury electrodes in sodium carbonate and sodium hydroxide solutions was investigated and no evidence was obtained for electroactive adsorption of any chromate species in amounts greater than about 4 μC/cm<sup>2</sup>. At low current densities, a kinetic wave is observed at −0.5 V in sodium carbonate solutions in the absence of specifically adsorbed anions. Chrono-potentiometry can be used to analyze 0.1–2.0 m<em>F</em> chromate solutions with a precision of better than 1%.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 250-253"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80046-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Polarographic reduction of quinoline and its derivatives in non-aqueous solvents 喹啉及其衍生物在非水溶剂中的极谱还原
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80040-2
Taitiro Fujinaga, Kosuke Izutsu, Kazunori Takaoka
{"title":"Polarographic reduction of quinoline and its derivatives in non-aqueous solvents","authors":"Taitiro Fujinaga,&nbsp;Kosuke Izutsu,&nbsp;Kazunori Takaoka","doi":"10.1016/0022-0728(66)80040-2","DOIUrl":"10.1016/0022-0728(66)80040-2","url":null,"abstract":"<div><p>The behaviour of quinoline in DMF solutions containing 0–90% water and the effects of phenol and perchloric acid, indicate the following mechanism for the polarographic reduction of quinoline (the reactions are arranged in order of half-wave potentials).</p><p>In the presence of less than 20% of water: Wave (A<sub>1</sub>). RHA + <em>e</em>→RH (when phenol is added) Wave (A<sub>2</sub>). RH + <em>e</em>αRH<sup>−</sup> + HA→RH<sub>2</sub> (when phenol is added) Wave (B). R + <em>e</em>αR<sup>−</sup> + H<sub>2</sub>O→RH + <em>e</em>αRH<sup>−</sup> Wave (C). R<sup>−</sup> + <em>e</em>αR<sup>2−</sup> + 2 H<sub>2</sub>O→RH<sub>2</sub></p><p>In the presence of more than 20% of water : Wave (A). RH<sup>+</sup> + <em>e</em>αRH + <em>e</em>αRH<sup>−</sup> + R→RRH<sup>−</sup> (when perchloric acid is added) Wave (B<sub>1</sub>). R + <em>e</em>αR<sup>−</sup> + H<sub>2</sub>O→RH + <em>e</em>αRH<sup>−</sup> + R→RRH<sup>−</sup>, Wave (B<sub>2</sub>). RRH<sup>−</sup> + 2 <em>e</em>→R<sup>2−</sup> + RH<sup>−</sup>→protonation</p><p>In solutions containing more than 80% of water, it was observed that wave (B<sub>1</sub>) was depressed abnormally and the phenomenon is attributed to adsorption of an electroinactive substance on the electrode surface.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 203-215"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80040-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 54
Determination polarographique rapide du selenium dans les vegetaux 植物中硒的快速极谱测定
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80037-2
P. Nangniot
{"title":"Determination polarographique rapide du selenium dans les vegetaux","authors":"P. Nangniot","doi":"10.1016/0022-0728(66)80037-2","DOIUrl":"10.1016/0022-0728(66)80037-2","url":null,"abstract":"<div><p>The polarographic behaviour of Se<sup>4+</sup> has been investigated in various base electrolytes. The superiority of hydrobromic over other acids is shown. Among numerous techniques for the separation of selenium, the precipitation method using ascoibic acid is recommended because of its simplicity. The precipitate of elementary selenium obtained, dissolves easily in brominated hydrobromic acid. After removal of bromine, the peak for selenium is obtained at about −0.35 V.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 187-193"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80037-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The calculation of potentiostatic current-time curves for the electrocrystallisation of metals 金属电结晶恒电位电流-时间曲线的计算
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80036-0
M. Fleischmann, J.A. Harrison
{"title":"The calculation of potentiostatic current-time curves for the electrocrystallisation of metals","authors":"M. Fleischmann,&nbsp;J.A. Harrison","doi":"10.1016/0022-0728(66)80036-0","DOIUrl":"10.1016/0022-0728(66)80036-0","url":null,"abstract":"<div><p>The shape of the current-time transient during electrocrystallisation is predicted for potentiostatic conditions, when electro chemical formation of adatoms is followed by diffusion to crystal-growth sites. This is an extension of the equations proposed by fleischmann and thirsk to the case where a finite rate of crystal growth is allowed.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 183-186"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80036-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Coulometric titration of oxidizing agents with electrogenerated molybdenum(V) 电生成钼(V)库仑滴定氧化剂
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80039-6
Fredric J. Feldman, Gary D. Christian
{"title":"Coulometric titration of oxidizing agents with electrogenerated molybdenum(V)","authors":"Fredric J. Feldman,&nbsp;Gary D. Christian","doi":"10.1016/0022-0728(66)80039-6","DOIUrl":"10.1016/0022-0728(66)80039-6","url":null,"abstract":"<div><p>The coulometric titration of several oxidizing agents with Mo(V) has been investigated. Permanganate, persulfate, Ce(IV), vanadate, iodate, and ferricyanide reacted stoichiometrically. Bromine, bromate, iodine, and chlorate reacted too slowly to be titrated directly. Fe(III), tungstate, uranyl, and Ti(IV) did not titrate.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 199-202"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80039-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Anodic oxidation mechanism of hypophosphorous and phosphorous acid on palladium 次磷酸和磷酸对钯的阳极氧化机理
Journal of Electroanalytical Chemistry (1959) Pub Date : 1966-09-01 Epub Date: 2010-12-07 DOI: 10.1016/0022-0728(66)80045-1
S. Trasatti, A. Alberti
{"title":"Anodic oxidation mechanism of hypophosphorous and phosphorous acid on palladium","authors":"S. Trasatti,&nbsp;A. Alberti","doi":"10.1016/0022-0728(66)80045-1","DOIUrl":"10.1016/0022-0728(66)80045-1","url":null,"abstract":"<div><p>The mechanism of anodic oxidation of hypophosphorous and phosphorous acid on palladium has been studied. Both acids undergo a catalytic dehydrogenation followed by the ionization of the resulting atomic hydrogen. This process is characterized by a limiting value of the polarizing current. Reaction order and activation energy have been determined for the rate-determining steps. The experimental data suggest that the rate-determining step is the electrochemical hydrogen ionization in the anodic oxidation of hypophosphorous acid and the catalytic dehydrogenation, H<sub>3</sub>PO<sub>3</sub>→H<sub>2</sub>PO<sub>3</sub> + H, for phosphorous acid. Suggestions are made for the anodic deactivation of the palladium electrode in the hypophosphorous acid anodic oxidation.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 3","pages":"Pages 236-249"},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80045-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53129374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
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