Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different Solutions
Chromium ions in the solution were electro-oxidized using a novel carbon paste electrode containing Cr2O3 nanoparticles. As a result of the modification, the voltammetric response of Cr-ion could be resolved into one well-defined peak. As a result, the quest-reversible mechanism was activated. Resea...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2022-03-01
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| Series: | Nano Biomedicine and Engineering |
| Subjects: | |
| Online Access: | https://www.sciopen.com/article/10.5101/nbe.v14i1.p53-57 |
| _version_ | 1827077375751356416 |
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| author | Emad Salaam Abood Ahmed Salim Abed Zahraa Salman |
| author_facet | Emad Salaam Abood Ahmed Salim Abed Zahraa Salman |
| author_sort | Emad Salaam Abood |
| collection | DOAJ |
| description | Chromium ions in the solution were electro-oxidized using a novel carbon paste electrode containing Cr2O3 nanoparticles. As a result of the modification, the voltammetric response of Cr-ion could be resolved into one well-defined peak. As a result, the quest-reversible mechanism was activated. Researchers investigated the electrode's kinetics between 20 and 30 degrees Celsius. In the redox process of Cr-ion oxidation, the voltammogram data indicated a rise in temperature that increased negative shift, which implied diffusion electron transfer. The Randles-Sevcik equation gave a diffusion coefficient of 1.9×10-3; the rate constant K was 0.3×10-3; and According to the study, In the range of 2-10 ppm, the peak current of Cr-ion rose linearly with its concentration, thermodynamic and kinetic parameters was calculated such as ∆E, ∆H, ∆G and ∆S equal to ‒58.2, ‒4.9, ‒65.1 and 0.11 KJ/mol respectively. |
| first_indexed | 2024-03-11T21:43:16Z |
| format | Article |
| id | doaj.art-0a2e003b247644ed81b0d6c87f5929f1 |
| institution | Directory Open Access Journal |
| issn | 2150-5578 |
| language | English |
| last_indexed | 2025-03-20T02:12:47Z |
| publishDate | 2022-03-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Nano Biomedicine and Engineering |
| spelling | doaj.art-0a2e003b247644ed81b0d6c87f5929f12024-10-03T08:08:49ZengTsinghua University PressNano Biomedicine and Engineering2150-55782022-03-01141535710.5101/nbe.v14i1.p53-57Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different SolutionsEmad Salaam Abood0Ahmed Salim Abed1Zahraa Salman2Department of Medical Physics, Hilla University College, Babylon, IraqDepartment of Medical Physics, Hilla University College, Babylon, IraqDepartment of Medical Physics, Hilla University College, Babylon, IraqChromium ions in the solution were electro-oxidized using a novel carbon paste electrode containing Cr2O3 nanoparticles. As a result of the modification, the voltammetric response of Cr-ion could be resolved into one well-defined peak. As a result, the quest-reversible mechanism was activated. Researchers investigated the electrode's kinetics between 20 and 30 degrees Celsius. In the redox process of Cr-ion oxidation, the voltammogram data indicated a rise in temperature that increased negative shift, which implied diffusion electron transfer. The Randles-Sevcik equation gave a diffusion coefficient of 1.9×10-3; the rate constant K was 0.3×10-3; and According to the study, In the range of 2-10 ppm, the peak current of Cr-ion rose linearly with its concentration, thermodynamic and kinetic parameters was calculated such as ∆E, ∆H, ∆G and ∆S equal to ‒58.2, ‒4.9, ‒65.1 and 0.11 KJ/mol respectively.https://www.sciopen.com/article/10.5101/nbe.v14i1.p53-57cvmonpscpecr2o3-npshydrothermal methodchromium oxide nanoparticles |
| spellingShingle | Emad Salaam Abood Ahmed Salim Abed Zahraa Salman Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different Solutions Nano Biomedicine and Engineering cv monpscpe cr2o3-nps hydrothermal method chromium oxide nanoparticles |
| title | Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different Solutions |
| title_full | Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different Solutions |
| title_fullStr | Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different Solutions |
| title_full_unstemmed | Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different Solutions |
| title_short | Highly Sensitive and Selective Chromium Oxide Nanoparticles Modified Carbon Paste Membrane Electrode to Determine Cr Concentration in Different Solutions |
| title_sort | highly sensitive and selective chromium oxide nanoparticles modified carbon paste membrane electrode to determine cr concentration in different solutions |
| topic | cv monpscpe cr2o3-nps hydrothermal method chromium oxide nanoparticles |
| url | https://www.sciopen.com/article/10.5101/nbe.v14i1.p53-57 |
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