Y. Okamoto, T. Nagai, H. Shiwaku, Takehiko Inose, Sato Seiichi
{"title":"Chemical State Analysis of Rhodium in Simulated Waste Glass by Synchrotron-Radiation-based XAFS and Imaging XAFS Techniques","authors":"Y. Okamoto, T. Nagai, H. Shiwaku, Takehiko Inose, Sato Seiichi","doi":"10.3327/TAESJ.J16.024","DOIUrl":null,"url":null,"abstract":"X-ray absorption fine structure （ XAFS ） and imaging XAFS analyses were performed to elucidate the chemical state of rhodium in simulated waste glass. The chemical forms of Rh in the glass were evaluated to be 84 ％ RhO 2 and 16 ％ metal / alloy as the result of linear combination analysis of EXAFS data. According to the imaging XAFS analysis, the chemical form of Rh that was located together with Ru was mainly oxide （ RhO 2 ） . This suggests that a stable （ Ru,Rh ） O 2 solid solution exists in the simulated glass. On the other hand, that of Rh whose distribution did not coincide with Ru in the glass was mainly metallic. The metallic Rh in the glass tended to become an aggregate form. It can be concluded that the chemical state of Rh was strongly affected by the existence and distribution of Ru.","PeriodicalId":8595,"journal":{"name":"Atomic Energy Society of Japan","volume":"87 1","pages":"180-190"},"PeriodicalIF":0.0000,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atomic Energy Society of Japan","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3327/TAESJ.J16.024","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
X-ray absorption fine structure （ XAFS ） and imaging XAFS analyses were performed to elucidate the chemical state of rhodium in simulated waste glass. The chemical forms of Rh in the glass were evaluated to be 84 ％ RhO 2 and 16 ％ metal / alloy as the result of linear combination analysis of EXAFS data. According to the imaging XAFS analysis, the chemical form of Rh that was located together with Ru was mainly oxide （ RhO 2 ） . This suggests that a stable （ Ru,Rh ） O 2 solid solution exists in the simulated glass. On the other hand, that of Rh whose distribution did not coincide with Ru in the glass was mainly metallic. The metallic Rh in the glass tended to become an aggregate form. It can be concluded that the chemical state of Rh was strongly affected by the existence and distribution of Ru.
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