Síntese eletroquímica do ion ferrato(VI)

Detalhes bibliográficos
Autor(a) principal: Luca,Maria Augusta de
Data de Publicação: 2003
Outros Autores: Luca,Sérgio João de, Santana,Maria Alice
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000300021
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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spelling Síntese eletroquímica do ion ferrato(VI)ferrate(VI)electrosynthesisanodic materialsThe 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.Sociedade Brasileira de Química2003-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000300021Química Nova v.26 n.3 2003reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422003000300021info:eu-repo/semantics/openAccessLuca,Maria Augusta deLuca,Sérgio João deSantana,Maria Alicepor2003-05-28T00:00:00Zoai:scielo:S0100-40422003000300021Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2003-05-28T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Síntese eletroquímica do ion ferrato(VI)
title Síntese eletroquímica do ion ferrato(VI)
spellingShingle Síntese eletroquímica do ion ferrato(VI)
Luca,Maria Augusta de
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 Luca,Maria Augusta de
author_facet Luca,Maria Augusta de
Luca,Sérgio João de
Santana,Maria Alice
author_role author
author2 Luca,Sérgio João de
Santana,Maria Alice
author2_role author
author
dc.contributor.author.fl_str_mv Luca,Maria Augusta de
Luca,Sérgio João de
Santana,Maria Alice
dc.subject.por.fl_str_mv ferrate(VI)
electrosynthesis
anodic materials
topic 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.none.fl_str_mv 2003-05-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000300021
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422003000300021
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422003000300021
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.26 n.3 2003
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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