Síntese eletroquímica do ion ferrato(VI)
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/72978 |
Resumo: | The optimization of ferrate(VI) ion generation has been studied due to its favorable characteristics for application in several fields, including environmental quality control. The paper presents the best conditions for electrolytic generation of ferrate(VI) in alkaline media. An appropriate electrolyte was NaOH, 10 mol/L. Circulation of the electrolyte solution was important to avoid acidification close to the anode surface. An anode pre-cleaning with 10% HCl was more efficient than a cathodic pre-polarization. Among the distinct anode materials tested, pig iron showed the best performance, allowing up to 20 g/L of Na2FeO4, in 10 mol/L NaOH solution to be obtained, after 7 h of reactor operation, which is a concentration higher than those found in literature for alternative processes. |
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De Luca, Maria AugustaDe Luca, Sérgio JoãoSantana, Maria Alice2013-07-03T01:42:42Z20030100-4042http://hdl.handle.net/10183/72978000369981The optimization of ferrate(VI) ion generation has been studied due to its favorable characteristics for application in several fields, including environmental quality control. The paper presents the best conditions for electrolytic generation of ferrate(VI) in alkaline media. An appropriate electrolyte was NaOH, 10 mol/L. Circulation of the electrolyte solution was important to avoid acidification close to the anode surface. An anode pre-cleaning with 10% HCl was more efficient than a cathodic pre-polarization. Among the distinct anode materials tested, pig iron showed the best performance, allowing up to 20 g/L of Na2FeO4, in 10 mol/L NaOH solution to be obtained, after 7 h of reactor operation, which is a concentration higher than those found in literature for alternative processes.application/pdfporQuímica nova. São Paulo. Vol. 26, n. 3 (2003), p. 420-24Ferrato(vi) : SínteseFerrato(vi) : Oxidação anódicaFerrate(VI)ElectrosynthesisAnodic materialsSíntese eletroquímica do ion ferrato(VI)Eletrochemical synthesis of iron(vi) ferrate info:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000369981.pdf000369981.pdfTexto completoapplication/pdf376990http://www.lume.ufrgs.br/bitstream/10183/72978/1/000369981.pdf3b8ea07404edc4ba87f1af8ccb22053bMD51TEXT000369981.pdf.txt000369981.pdf.txtExtracted Texttext/plain21463http://www.lume.ufrgs.br/bitstream/10183/72978/2/000369981.pdf.txtc5d9e5434efeb332c3957b6d8c4b2fcfMD52THUMBNAIL000369981.pdf.jpg000369981.pdf.jpgGenerated Thumbnailimage/jpeg1993http://www.lume.ufrgs.br/bitstream/10183/72978/3/000369981.pdf.jpg48a57d61596347580a2f554d08902bf3MD5310183/729782018-10-15 08:06:00.444oai:www.lume.ufrgs.br:10183/72978Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-15T11:06Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Síntese eletroquímica do ion ferrato(VI) |
dc.title.alternative.en.fl_str_mv |
Eletrochemical synthesis of iron(vi) ferrate |
title |
Síntese eletroquímica do ion ferrato(VI) |
spellingShingle |
Síntese eletroquímica do ion ferrato(VI) De Luca, Maria Augusta Ferrato(vi) : Síntese Ferrato(vi) : Oxidação anódica Ferrate(VI) Electrosynthesis Anodic materials |
title_short |
Síntese eletroquímica do ion ferrato(VI) |
title_full |
Síntese eletroquímica do ion ferrato(VI) |
title_fullStr |
Síntese eletroquímica do ion ferrato(VI) |
title_full_unstemmed |
Síntese eletroquímica do ion ferrato(VI) |
title_sort |
Síntese eletroquímica do ion ferrato(VI) |
author |
De Luca, Maria Augusta |
author_facet |
De Luca, Maria Augusta De Luca, Sérgio João Santana, Maria Alice |
author_role |
author |
author2 |
De Luca, Sérgio João Santana, Maria Alice |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
De Luca, Maria Augusta De Luca, Sérgio João Santana, Maria Alice |
dc.subject.por.fl_str_mv |
Ferrato(vi) : Síntese Ferrato(vi) : Oxidação anódica |
topic |
Ferrato(vi) : Síntese Ferrato(vi) : Oxidação anódica Ferrate(VI) Electrosynthesis Anodic materials |
dc.subject.eng.fl_str_mv |
Ferrate(VI) Electrosynthesis Anodic materials |
description |
The optimization of ferrate(VI) ion generation has been studied due to its favorable characteristics for application in several fields, including environmental quality control. The paper presents the best conditions for electrolytic generation of ferrate(VI) in alkaline media. An appropriate electrolyte was NaOH, 10 mol/L. Circulation of the electrolyte solution was important to avoid acidification close to the anode surface. An anode pre-cleaning with 10% HCl was more efficient than a cathodic pre-polarization. Among the distinct anode materials tested, pig iron showed the best performance, allowing up to 20 g/L of Na2FeO4, in 10 mol/L NaOH solution to be obtained, after 7 h of reactor operation, which is a concentration higher than those found in literature for alternative processes. |
publishDate |
2003 |
dc.date.issued.fl_str_mv |
2003 |
dc.date.accessioned.fl_str_mv |
2013-07-03T01:42:42Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/72978 |
dc.identifier.issn.pt_BR.fl_str_mv |
0100-4042 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000369981 |
identifier_str_mv |
0100-4042 000369981 |
url |
http://hdl.handle.net/10183/72978 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.ispartof.pt_BR.fl_str_mv |
Química nova. São Paulo. Vol. 26, n. 3 (2003), p. 420-24 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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