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Reactivity of Solids最新文献

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Study of the thermal decomposition of the copper substituted cobalt hydroxide chloride series, β-CuxCo2−x(OH)3Cl, by high tempe 铜取代氯化钴β-CuxCo2−x(OH)3Cl的高温热分解研究
Reactivity of Solids Pub Date : 1989-04-01 DOI: 10.1016/0168-7336(89)80009-9
O. García, P. Millán, R.M. Rojas ∗, E. Vila
{"title":"Study of the thermal decomposition of the copper substituted cobalt hydroxide chloride series, β-CuxCo2−x(OH)3Cl, by high tempe","authors":"O. García,&nbsp;P. Millán,&nbsp;R.M. Rojas ∗,&nbsp;E. Vila","doi":"10.1016/0168-7336(89)80009-9","DOIUrl":"10.1016/0168-7336(89)80009-9","url":null,"abstract":"<div><p>Thermal decomposition of several copper(II)-cobalt(II) hydroxide chlorides, β-Cu<sub><em>x</em></sub>Co<sub>2−<em>x</em></sub>(OH)<sub>3</sub>Cl (0.34 ⩽ <em>x</em> ⩽ 1.5) has been carried out in an evacuated high temperature X-ray diffraction chamber. The cubic spinel phase Cu<sub><em>y</em></sub>Co<sub>3−<em>y</em></sub>O<sub>4</sub> and the cubic rock-salt phase (Cu,Co)O<sub>ss</sub> are two of the intermediates that form during the decompositions, while cobalt metal or a mixture of cobalt and copper metals are obtained as final products, their relative amounts depending on the value of the stoichiometric coefficient <em>x</em> of the precursors.</p></div>","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"7 1","pages":"Pages 75-81"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80009-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86018082","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
Chlorination of titanias modified by alkali and/or phosphorus additives 碱和/或磷添加剂改性二氧化钛的氯化反应
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80072-5
G. Mink, I.S. Pap, I. Bertóti, T. Székely, E. Karmazsin
{"title":"Chlorination of titanias modified by alkali and/or phosphorus additives","authors":"G. Mink,&nbsp;I.S. Pap,&nbsp;I. Bertóti,&nbsp;T. Székely,&nbsp;E. Karmazsin","doi":"10.1016/0168-7336(89)80072-5","DOIUrl":"10.1016/0168-7336(89)80072-5","url":null,"abstract":"<div><p>The role of surface alkali and phosphorus additives on the time-dependence of the reaction of TiO<sub>2</sub> with COCl<sub>2</sub> has been studied by a reactive thermogravimetric method. At conversions below 0.7 apparent fractional orders with respect to the solid were found to be 1 (for TiO<sub>2</sub>-Li(s) and TiO<sub>2</sub>-Na(s)) and 2 (for TiO<sub>2</sub>-K(s)); these formal orders, however, provided insufficient information for describing the conversion vs. time curves above α = 0.7. The proposed kinetic model which enables satisfactory curve fitting even for high conversions involves a non-uniform particle size distribution, together with the surface enrichment of phosphorus as retardant during the shrinking of the particles, which results in a steady decrease in the linear reaction rate.</p></div>","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Pages 335-348"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80072-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74595051","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
Photochromy and thermal stability of crystalline salicylidene-4-amino-antipyrene 水杨基-4-氨基安提芘晶体的光致变色及热稳定性
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80074-9
El-Zeiny M. Ebeid, Ahmed M. Donia, Fathy A. El-Saied
{"title":"Photochromy and thermal stability of crystalline salicylidene-4-amino-antipyrene","authors":"El-Zeiny M. Ebeid,&nbsp;Ahmed M. Donia,&nbsp;Fathy A. El-Saied","doi":"10.1016/0168-7336(89)80074-9","DOIUrl":"10.1016/0168-7336(89)80074-9","url":null,"abstract":"<div><p>The crystalline salicylidene-4-amino-antipyrene derivative (I) is photolabile and undergoes photochromism and an associated structural change. The compound shows a reasonable solid-state thermal stability but undergoes thermal decomposition in the fused phase.</p></div>","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Pages 361-368"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80074-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90575930","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
Formation of molybdenum carbides by reaction of molybdenum compounds with molten sodium cyanide 钼化合物与熔融氰化钠反应生成碳化钼
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80075-0
C.E. Bamberger ∗ , C.S. MacDougall , O.B. Cavin
{"title":"Formation of molybdenum carbides by reaction of molybdenum compounds with molten sodium cyanide","authors":"C.E. Bamberger ∗ ,&nbsp;C.S. MacDougall ,&nbsp;O.B. Cavin","doi":"10.1016/0168-7336(89)80075-0","DOIUrl":"10.1016/0168-7336(89)80075-0","url":null,"abstract":"","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Pages 369-372"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80075-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73501442","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: 0
Meeting reports 会议报告
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80084-1
{"title":"Meeting reports","authors":"","doi":"10.1016/0168-7336(89)80084-1","DOIUrl":"https://doi.org/10.1016/0168-7336(89)80084-1","url":null,"abstract":"","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Pages 380-381"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80084-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136569791","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: 0
Calendar of forthcoming events 即将举行的活动日历
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80087-7
{"title":"Calendar of forthcoming events","authors":"","doi":"10.1016/0168-7336(89)80087-7","DOIUrl":"https://doi.org/10.1016/0168-7336(89)80087-7","url":null,"abstract":"","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Pages 386-388"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80087-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136578019","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: 0
Kinetics of the spontaneous dissolution of copper-47.3 atom-% zinc brass with hydrogen depolarization 氢退极化下铜-47.3原子-%锌黄铜的自发溶解动力学
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80073-7
L. Burzyńska, Z. Zembura ∗, J. Karp
{"title":"Kinetics of the spontaneous dissolution of copper-47.3 atom-% zinc brass with hydrogen depolarization","authors":"L. Burzyńska,&nbsp;Z. Zembura ∗,&nbsp;J. Karp","doi":"10.1016/0168-7336(89)80073-7","DOIUrl":"10.1016/0168-7336(89)80073-7","url":null,"abstract":"<div><p>The solid products of the dissolution of β'-ordered brass in deaerated 2.0 <em>M</em> H<sub>2</sub>SO<sub>4</sub> have been studied by optical and electron microscopy and X-ray diffraction. It has been found that the thickness of the zinc-leached layer as time function satisfies the Erofeev equation, a layer of variable zinc contents exists in the interphase zone: brass-pure copper and a brass of bainite structure appears at the surface of the β'-ordered brass. On the assumption that the reduction of H<sup>+</sup> ions is the rate-determining step of the electrochemical process the hypothesis that the rate of dissolution of brass controls the formation and growth of metallic copper phase has been corroborated.</p></div>","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Pages 349-359"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80073-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75304707","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: 0
Industrial report 工业报告
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80081-6
{"title":"Industrial report","authors":"","doi":"10.1016/0168-7336(89)80081-6","DOIUrl":"https://doi.org/10.1016/0168-7336(89)80081-6","url":null,"abstract":"","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Page 378"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80081-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136569789","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: 0
News Brief 简短的新闻
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80076-2
{"title":"News Brief","authors":"","doi":"10.1016/0168-7336(89)80076-2","DOIUrl":"https://doi.org/10.1016/0168-7336(89)80076-2","url":null,"abstract":"","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Page 373"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80076-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136538187","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: 0
Chlorination of titanias modified by alkali and/or phosphorus additives 碱和/或磷添加剂改性二氧化钛的氯化反应
Reactivity of Solids Pub Date : 1989-02-01 DOI: 10.1016/0168-7336(89)80071-3
G. Mink ∗, I.S. Pap, I. Bertóti, T. Székely, E. Karmazsin, A. Dassler
{"title":"Chlorination of titanias modified by alkali and/or phosphorus additives","authors":"G. Mink ∗,&nbsp;I.S. Pap,&nbsp;I. Bertóti,&nbsp;T. Székely,&nbsp;E. Karmazsin,&nbsp;A. Dassler","doi":"10.1016/0168-7336(89)80071-3","DOIUrl":"10.1016/0168-7336(89)80071-3","url":null,"abstract":"<div><p>The kinetics of the chlorination of titania modified by alkali and/or phosphorous additives, were studied by thermogravimetric methods using COCl<sub>2</sub> and gaseous CCl<sub>4</sub> as chlorinating agents. The chlorination of pure titania was compared with that of phosphorous-containing compounds, TiO<sub>2</sub> · <em>n</em>P<sub>2</sub>O<sub>5</sub> and K<sub>3</sub>P<sub>3</sub>O<sub>9</sub> were also investigated. Apparent activation energies and reaction orders were calculated from the dependence of the initial rates on temperature and partial pressure.</p><p>With COCl<sub>2</sub> as chlorinating agent and increased alkali content of the samples resulted in an increase in the reaction rate, whereas the phosphorous additive behaved as a retardant, and their inhibiting effects became more and more pronounced in the course of the reaction. On the other hand when chlorinating with CCl<sub>4</sub>, high amounts of K or Na additives retarded the reaction, and Li enhanced the chlorination.</p></div>","PeriodicalId":101061,"journal":{"name":"Reactivity of Solids","volume":"6 4","pages":"Pages 321-333"},"PeriodicalIF":0.0,"publicationDate":"1989-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0168-7336(89)80071-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80429015","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: 0
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