研究了不同热活化程度对RuO2·xH2O的腐蚀性能和氧催化活性的影响

Q4 Chemical Engineering
David Worsley ∗, Andrew Mills
{"title":"研究了不同热活化程度对RuO2·xH2O的腐蚀性能和氧催化活性的影响","authors":"David Worsley ∗,&nbsp;Andrew Mills","doi":"10.1016/0304-5102(94)87030-6","DOIUrl":null,"url":null,"abstract":"<div><p>The kinetics of dissolution and oxygen catalysis of RuO<sub>2</sub>·<em>x</em>H<sub>2</sub>O samples, thermally activated at different temperatures in the range ambient to 100°C, are reported. The results of a kinetic study show that increasing the temperature of activation causes an increasingly thick, dissolution-inert and diffuse layer to form on the outside of the particles. The observed decrease in activity towards dissolution with increased annealing temperature is mirrored an by increase in the activity of the samples as catalysts for the oxidation of water to O<sub>2</sub> by the BrO<sup>−</sup><sub>3</sub> ions present. The results of this work re-enforce the crucial link between the water content of a hydrated sample of ruthenium dioxide and its activity as an oxygen catalyst.</p></div>","PeriodicalId":16567,"journal":{"name":"分子催化","volume":"94 1","pages":"Pages 71-84"},"PeriodicalIF":0.0000,"publicationDate":"1994-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-5102(94)87030-6","citationCount":"0","resultStr":"{\"title\":\"The effects of differing degrees of thermal activation of RuO2·xH2O on its corrodability and oxygen catalytic activity\",\"authors\":\"David Worsley ∗,&nbsp;Andrew Mills\",\"doi\":\"10.1016/0304-5102(94)87030-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The kinetics of dissolution and oxygen catalysis of RuO<sub>2</sub>·<em>x</em>H<sub>2</sub>O samples, thermally activated at different temperatures in the range ambient to 100°C, are reported. The results of a kinetic study show that increasing the temperature of activation causes an increasingly thick, dissolution-inert and diffuse layer to form on the outside of the particles. The observed decrease in activity towards dissolution with increased annealing temperature is mirrored an by increase in the activity of the samples as catalysts for the oxidation of water to O<sub>2</sub> by the BrO<sup>−</sup><sub>3</sub> ions present. The results of this work re-enforce the crucial link between the water content of a hydrated sample of ruthenium dioxide and its activity as an oxygen catalyst.</p></div>\",\"PeriodicalId\":16567,\"journal\":{\"name\":\"分子催化\",\"volume\":\"94 1\",\"pages\":\"Pages 71-84\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-11-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0304-5102(94)87030-6\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"分子催化\",\"FirstCategoryId\":\"1089\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0304510294870306\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Chemical Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"分子催化","FirstCategoryId":"1089","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0304510294870306","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Chemical Engineering","Score":null,"Total":0}
引用次数: 0

摘要

本文报道了在室温至100℃范围内不同温度下热活化的RuO2·xH2O样品的溶解动力学和氧催化动力学。动力学研究结果表明,随着活化温度的升高,在颗粒表面形成一层越来越厚的、不溶于水的扩散层。随着退火温度的升高,观察到的溶解活性的降低反映在样品作为催化剂的活性的增加上,这些样品被存在的BrO - 3离子氧化成O2。这项工作的结果再次强调了水合二氧化钌样品的含水量与其作为氧催化剂的活性之间的关键联系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effects of differing degrees of thermal activation of RuO2·xH2O on its corrodability and oxygen catalytic activity

The kinetics of dissolution and oxygen catalysis of RuO2·xH2O samples, thermally activated at different temperatures in the range ambient to 100°C, are reported. The results of a kinetic study show that increasing the temperature of activation causes an increasingly thick, dissolution-inert and diffuse layer to form on the outside of the particles. The observed decrease in activity towards dissolution with increased annealing temperature is mirrored an by increase in the activity of the samples as catalysts for the oxidation of water to O2 by the BrO3 ions present. The results of this work re-enforce the crucial link between the water content of a hydrated sample of ruthenium dioxide and its activity as an oxygen catalyst.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
分子催化
分子催化 Chemical Engineering-Catalysis
CiteScore
1.50
自引率
0.00%
发文量
2959
期刊介绍:
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信