Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium

Detalhes bibliográficos
Autor(a) principal: Mayara Cristina Fernandes de Carvalho
Data de Publicação: 2022
Outros Autores: Nayara Maria Santos de Almeida, Iago Magella Fernandes Costa Rossi e Silva, Fernando Cotting, Idalina Vieira Aoki, Vera Rosa Capelossi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFMG
Texto Completo: https://doi.org/10.1590/1980-5373-MR-2021-0125
http://hdl.handle.net/1843/60746
http://orcid.org/0000-0002-5087-8597
http://orcid.org/0000-0003-1933-6092
http://orcid.org/0000-0003-4639-2540
http://orcid.org/0000-0001-5980-0078
http://orcid.org/0000-0002-8203-2625
http://orcid.org/0000-0002-0212-8388
Resumo: The inhibition effect of the cocoa bean shell powder (CBSP) on SAE 1008 carbon steel was studied in acidic medium (HCl 0.5 mol L-1) by electrochemical techniques and gravimetric measurements. Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) were used to the chemical and morphological characterization. The gravimetric and EIS results showed that the corrosion rate decreases with increasing inhibitor concentration, reaching the maximum value of 97.92% in 1.77 g L-1 inhibitor (highest concentration studied). Even at the lowest concentration (0.44 g L-1) good corrosion inhibition efficiency (96.03%) was observed. The polarization curves indicated that the CBSP acts as a mixed type inhibitor. The inhibitory molecules adsorption followed the Langmuir isotherm model. The inhibitor economic evaluation showed that the use of CBSP is 48-616 times cheaper than traditional inhibitors. The results showed that CBSP is an efficient corrosion inhibitor for carbon steel and its production is financially attractive.
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spelling 2023-11-09T21:40:36Z2023-11-09T21:40:36Z202225https://doi.org/10.1590/1980-5373-MR-2021-01251980-5373http://hdl.handle.net/1843/60746http://orcid.org/0000-0002-5087-8597http://orcid.org/0000-0003-1933-6092http://orcid.org/0000-0003-4639-2540http://orcid.org/0000-0001-5980-0078http://orcid.org/0000-0002-8203-2625http://orcid.org/0000-0002-0212-8388The inhibition effect of the cocoa bean shell powder (CBSP) on SAE 1008 carbon steel was studied in acidic medium (HCl 0.5 mol L-1) by electrochemical techniques and gravimetric measurements. Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) were used to the chemical and morphological characterization. The gravimetric and EIS results showed that the corrosion rate decreases with increasing inhibitor concentration, reaching the maximum value of 97.92% in 1.77 g L-1 inhibitor (highest concentration studied). Even at the lowest concentration (0.44 g L-1) good corrosion inhibition efficiency (96.03%) was observed. The polarization curves indicated that the CBSP acts as a mixed type inhibitor. The inhibitory molecules adsorption followed the Langmuir isotherm model. The inhibitor economic evaluation showed that the use of CBSP is 48-616 times cheaper than traditional inhibitors. The results showed that CBSP is an efficient corrosion inhibitor for carbon steel and its production is financially attractive.O efeito de inibição do pó da casca do cacau (CBSP) sobre o aço carbono SAE 1008 foi estudado em meio ácido (HCl 0,5 mol L-1) por meio de técnicas eletroquímicas e medidas gravimétricas. Espectroscopia no infravermelho com transformada de Fourier (FTIR) e microscopia eletrônica de varredura (MEV) foram utilizadas para caracterização química e morfológica. Os resultados gravimétricos e EIS mostraram que a taxa de corrosão diminui com o aumento da concentração do inibidor, atingindo o valor máximo de 97,92% em 1,77 g L-1 de inibidor (maior concentração estudada). Mesmo na concentração mais baixa (0,44 g L-1) foi observada boa eficiência de inibição da corrosão (96,03%). As curvas de polarização indicaram que o CBSP atua como um inibidor do tipo misto. A adsorção das moléculas inibitórias seguiu o modelo da isoterma de Langmuir. A avaliação econômica do inibidor mostrou que o uso do CBSP é 48-616 vezes mais barato que os inibidores tradicionais. Os resultados mostraram que o CBSP é um eficiente inibidor de corrosão para aço carbono e sua produção é financeiramente atrativa.CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorengUniversidade Federal de Minas GeraisUFMGBrasilENG - DEPARTAMENTO DE ENGENHARIA QUÍMICAMaterials ResearchAço-carbonoCascas de cacauCorrosão e anticorrosivosEspectroscopia de impedânciaCarbon steelCocoa bean shellNatural Corrosion InhibitorEISSVETElectrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic mediumAvaliação eletroquímica e econômica da casca da amêndoa do cacau como inibidor de corrosão em meio ácidoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://www.scielo.br/j/mr/a/MBXhmkHm3nJvcbWvLZkGxCL/?lang=en#Mayara Cristina Fernandes de CarvalhoNayara Maria Santos de AlmeidaIago Magella Fernandes Costa Rossi e SilvaFernando CottingIdalina Vieira AokiVera Rosa Capelossiapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/60746/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALElectrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium.pdfElectrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium.pdfapplication/pdf2627387https://repositorio.ufmg.br/bitstream/1843/60746/2/Electrochemical%20and%20economic%20evaluation%20of%20the%20cocoa%20bean%20shell%20as%20a%20corrosion%20inhibitor%20in%20acidic%20medium.pdf57317e89f73e9615ec66328d4264cb53MD521843/607462023-11-09 18:40:36.481oai:repositorio.ufmg.br:1843/60746Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-11-09T21:40:36Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
dc.title.pt_BR.fl_str_mv Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
dc.title.alternative.pt_BR.fl_str_mv Avaliação eletroquímica e econômica da casca da amêndoa do cacau como inibidor de corrosão em meio ácido
title Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
spellingShingle Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
Mayara Cristina Fernandes de Carvalho
Carbon steel
Cocoa bean shell
Natural Corrosion Inhibitor
EIS
SVET
Aço-carbono
Cascas de cacau
Corrosão e anticorrosivos
Espectroscopia de impedância
title_short Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
title_full Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
title_fullStr Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
title_full_unstemmed Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
title_sort Electrochemical and economic evaluation of the cocoa bean shell as a corrosion inhibitor in acidic medium
author Mayara Cristina Fernandes de Carvalho
author_facet Mayara Cristina Fernandes de Carvalho
Nayara Maria Santos de Almeida
Iago Magella Fernandes Costa Rossi e Silva
Fernando Cotting
Idalina Vieira Aoki
Vera Rosa Capelossi
author_role author
author2 Nayara Maria Santos de Almeida
Iago Magella Fernandes Costa Rossi e Silva
Fernando Cotting
Idalina Vieira Aoki
Vera Rosa Capelossi
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Mayara Cristina Fernandes de Carvalho
Nayara Maria Santos de Almeida
Iago Magella Fernandes Costa Rossi e Silva
Fernando Cotting
Idalina Vieira Aoki
Vera Rosa Capelossi
dc.subject.por.fl_str_mv Carbon steel
Cocoa bean shell
Natural Corrosion Inhibitor
EIS
SVET
topic Carbon steel
Cocoa bean shell
Natural Corrosion Inhibitor
EIS
SVET
Aço-carbono
Cascas de cacau
Corrosão e anticorrosivos
Espectroscopia de impedância
dc.subject.other.pt_BR.fl_str_mv Aço-carbono
Cascas de cacau
Corrosão e anticorrosivos
Espectroscopia de impedância
description The inhibition effect of the cocoa bean shell powder (CBSP) on SAE 1008 carbon steel was studied in acidic medium (HCl 0.5 mol L-1) by electrochemical techniques and gravimetric measurements. Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) were used to the chemical and morphological characterization. The gravimetric and EIS results showed that the corrosion rate decreases with increasing inhibitor concentration, reaching the maximum value of 97.92% in 1.77 g L-1 inhibitor (highest concentration studied). Even at the lowest concentration (0.44 g L-1) good corrosion inhibition efficiency (96.03%) was observed. The polarization curves indicated that the CBSP acts as a mixed type inhibitor. The inhibitory molecules adsorption followed the Langmuir isotherm model. The inhibitor economic evaluation showed that the use of CBSP is 48-616 times cheaper than traditional inhibitors. The results showed that CBSP is an efficient corrosion inhibitor for carbon steel and its production is financially attractive.
publishDate 2022
dc.date.issued.fl_str_mv 2022
dc.date.accessioned.fl_str_mv 2023-11-09T21:40:36Z
dc.date.available.fl_str_mv 2023-11-09T21:40:36Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1843/60746
dc.identifier.doi.pt_BR.fl_str_mv https://doi.org/10.1590/1980-5373-MR-2021-0125
dc.identifier.issn.pt_BR.fl_str_mv 1980-5373
dc.identifier.orcid.pt_BR.fl_str_mv http://orcid.org/0000-0002-5087-8597
http://orcid.org/0000-0003-1933-6092
http://orcid.org/0000-0003-4639-2540
http://orcid.org/0000-0001-5980-0078
http://orcid.org/0000-0002-8203-2625
http://orcid.org/0000-0002-0212-8388
url https://doi.org/10.1590/1980-5373-MR-2021-0125
http://hdl.handle.net/1843/60746
http://orcid.org/0000-0002-5087-8597
http://orcid.org/0000-0003-1933-6092
http://orcid.org/0000-0003-4639-2540
http://orcid.org/0000-0001-5980-0078
http://orcid.org/0000-0002-8203-2625
http://orcid.org/0000-0002-0212-8388
identifier_str_mv 1980-5373
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Materials Research
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.publisher.initials.fl_str_mv UFMG
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv ENG - DEPARTAMENTO DE ENGENHARIA QUÍMICA
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFMG
instname:Universidade Federal de Minas Gerais (UFMG)
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