Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium
The electro-catalytic reduction of nitrate ion in acidic media was observed at the Cu-electrodeposited Au surface. The voltammetric analysis represented that the Cu/Au electrode has an enhanced catalytic activity towards nitrate reduction in acidic medium through by eight electrons transfer process....
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715622004210 |
| _version_ | 1827920660091895808 |
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| author | Abrar Yasir Abir S.M. Nizam Uddin Mahmudul Hasan Md. Abdul Aziz Shaheen Shah Jahir Ahmed Mohammad Abul Hasnat |
| author_facet | Abrar Yasir Abir S.M. Nizam Uddin Mahmudul Hasan Md. Abdul Aziz Shaheen Shah Jahir Ahmed Mohammad Abul Hasnat |
| author_sort | Abrar Yasir Abir |
| collection | DOAJ |
| description | The electro-catalytic reduction of nitrate ion in acidic media was observed at the Cu-electrodeposited Au surface. The voltammetric analysis represented that the Cu/Au electrode has an enhanced catalytic activity towards nitrate reduction in acidic medium through by eight electrons transfer process. Ammonia (NH3) was produced from the reduction of nitrate (NO3–) which followed a concerted reaction pathway as the value of transfer coefficient was 0.45 at Cu/Au electrode in the acidic medium. The value of standard rate constant and open circuit potential was evaluated as 2.48 × 10−4 cms−1 and 0.10 V respectively. This Cu/Au electrode displayed a good sensitivity (5.9378 μAµM−1cm−2) and lower detection limit (LOD: 0.52 µM) towards the reduction of nitrate ion and exhibited excellent performance in real sample analysis. |
| first_indexed | 2024-03-13T04:13:43Z |
| format | Article |
| id | doaj.art-93675f21f4a54e90867206b7232dff57 |
| institution | Directory Open Access Journal |
| issn | 2211-7156 |
| language | English |
| last_indexed | 2024-03-13T04:13:43Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj.art-93675f21f4a54e90867206b7232dff572023-06-21T06:51:40ZengElsevierResults in Chemistry2211-71562023-01-015100702Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic mediumAbrar Yasir Abir0S.M. Nizam Uddin1Mahmudul Hasan2Md. Abdul Aziz3Shaheen Shah4Jahir Ahmed5Mohammad Abul Hasnat6Department of Chemistry, Graduate School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh; Department of Textile Engineering, Green University of Bangladesh, Dhaka 1207, BangladeshDepartment of Chemistry, Graduate School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh; Corresponding authors.Department of Chemistry, Graduate School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet 3114, BangladeshInterdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi ArabiaInterdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi ArabiaPromising Centre for Sensors and Electronic Devices PCSED, Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi ArabiaDepartment of Chemistry, Graduate School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh; Corresponding authors.The electro-catalytic reduction of nitrate ion in acidic media was observed at the Cu-electrodeposited Au surface. The voltammetric analysis represented that the Cu/Au electrode has an enhanced catalytic activity towards nitrate reduction in acidic medium through by eight electrons transfer process. Ammonia (NH3) was produced from the reduction of nitrate (NO3–) which followed a concerted reaction pathway as the value of transfer coefficient was 0.45 at Cu/Au electrode in the acidic medium. The value of standard rate constant and open circuit potential was evaluated as 2.48 × 10−4 cms−1 and 0.10 V respectively. This Cu/Au electrode displayed a good sensitivity (5.9378 μAµM−1cm−2) and lower detection limit (LOD: 0.52 µM) towards the reduction of nitrate ion and exhibited excellent performance in real sample analysis.http://www.sciencedirect.com/science/article/pii/S2211715622004210Cu-deposited Au electrodeNitrate reduction reactionKineticsElectrocatalytic sensorAcidic medium |
| spellingShingle | Abrar Yasir Abir S.M. Nizam Uddin Mahmudul Hasan Md. Abdul Aziz Shaheen Shah Jahir Ahmed Mohammad Abul Hasnat Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium Results in Chemistry Cu-deposited Au electrode Nitrate reduction reaction Kinetics Electrocatalytic sensor Acidic medium |
| title | Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium |
| title_full | Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium |
| title_fullStr | Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium |
| title_full_unstemmed | Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium |
| title_short | Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium |
| title_sort | cu electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium |
| topic | Cu-deposited Au electrode Nitrate reduction reaction Kinetics Electrocatalytic sensor Acidic medium |
| url | http://www.sciencedirect.com/science/article/pii/S2211715622004210 |
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