Desenvolvimento e aplicação de células eletroquímicas em camada delgada
Theoretical and practical aspects concerning construction and use of a thin layer electrochemical cell are presented. Construction was realized by a simple technic and geometry was optimized in order to minimize the problems of electrical resistance. A well known redox system was studied ((Fe(III)(C...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
1999-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000600020 |
| _version_ | 1817999775091392512 |
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| author | Pernaut Jean Michel Matencio Tullio |
| author_facet | Pernaut Jean Michel Matencio Tullio |
| author_sort | Pernaut Jean Michel |
| collection | DOAJ |
| description | Theoretical and practical aspects concerning construction and use of a thin layer electrochemical cell are presented. Construction was realized by a simple technic and geometry was optimized in order to minimize the problems of electrical resistance. A well known redox system was studied ((Fe(III)(CN)6(3-)/Fe(II)(CN) 6(4-)) using two experimental methods, cyclic voltammetry and pulse chronopotentiometry. A numerical integration based-program was developed to calculate the voltammetric current in case of nernstian and non-nernstian behaviours and a diffusional model was used to treat the chronopotentiometric data. Thermodynamic (potential, concentration) and kinetic parameters (diffusion coefficient) were successfully determined for the redox system studied in this work. |
| first_indexed | 2024-04-14T03:13:32Z |
| format | Article |
| id | doaj.art-3125c0ef63c7413dadf5cf621e5c1c81 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-04-14T03:13:32Z |
| publishDate | 1999-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-3125c0ef63c7413dadf5cf621e5c1c812022-12-22T02:15:33ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70641999-01-01226899902Desenvolvimento e aplicação de células eletroquímicas em camada delgadaPernaut Jean MichelMatencio TullioTheoretical and practical aspects concerning construction and use of a thin layer electrochemical cell are presented. Construction was realized by a simple technic and geometry was optimized in order to minimize the problems of electrical resistance. A well known redox system was studied ((Fe(III)(CN)6(3-)/Fe(II)(CN) 6(4-)) using two experimental methods, cyclic voltammetry and pulse chronopotentiometry. A numerical integration based-program was developed to calculate the voltammetric current in case of nernstian and non-nernstian behaviours and a diffusional model was used to treat the chronopotentiometric data. Thermodynamic (potential, concentration) and kinetic parameters (diffusion coefficient) were successfully determined for the redox system studied in this work.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000600020thin layerelectrochemical cellchronopotentiometry |
| spellingShingle | Pernaut Jean Michel Matencio Tullio Desenvolvimento e aplicação de células eletroquímicas em camada delgada Química Nova thin layer electrochemical cell chronopotentiometry |
| title | Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
| title_full | Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
| title_fullStr | Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
| title_full_unstemmed | Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
| title_short | Desenvolvimento e aplicação de células eletroquímicas em camada delgada |
| title_sort | desenvolvimento e aplicacao de celulas eletroquimicas em camada delgada |
| topic | thin layer electrochemical cell chronopotentiometry |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000600020 |
| work_keys_str_mv | AT pernautjeanmichel desenvolvimentoeaplicacaodecelulaseletroquimicasemcamadadelgada AT matenciotullio desenvolvimentoeaplicacaodecelulaseletroquimicasemcamadadelgada |