Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium

Abrar Yasir Abir; S. M. Nizam Uddin; Mahmudul Hasan; Md Abdul Aziz; Shaheen Shah; Jahir Ahmed; Mohammad Abul Hasnat

doi:10.1016/j.rechem.2022.100702

Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium

Abrar Yasir Abir, S. M. Nizam Uddin^*, Mahmudul Hasan, Md Abdul Aziz, Shaheen Shah, Jahir Ahmed, Mohammad Abul Hasnat

^*Corresponding author for this work

Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

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.

Original language	English
Article number	100702
Journal	Results in Chemistry
Volume	5
DOIs	https://doi.org/10.1016/j.rechem.2022.100702
State	Published - Jan 2023

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Publisher Copyright:
© 2022 The Author(s)

Keywords

Acidic medium
Cu-deposited Au electrode
Electrocatalytic sensor
Kinetics
Nitrate reduction reaction

ASJC Scopus subject areas

General Chemistry

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10.1016/j.rechem.2022.100702

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@article{f0aca049adda41d1b07249922ecd7bae,

title = "Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium",

abstract = "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.",

keywords = "Acidic medium, Cu-deposited Au electrode, Electrocatalytic sensor, Kinetics, Nitrate reduction reaction",

author = "{Yasir Abir}, Abrar and {Nizam Uddin}, {S. M.} and Mahmudul Hasan and {Abdul Aziz}, Md and Shaheen Shah and Jahir Ahmed and {Abul Hasnat}, Mohammad",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2023",

month = jan,

doi = "10.1016/j.rechem.2022.100702",

language = "English",

volume = "5",

journal = "Results in Chemistry",

issn = "2211-7156",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium

AU - Yasir Abir, Abrar

AU - Nizam Uddin, S. M.

AU - Hasan, Mahmudul

AU - Abdul Aziz, Md

AU - Shah, Shaheen

AU - Ahmed, Jahir

AU - Abul Hasnat, Mohammad

PY - 2023/1

Y1 - 2023/1

N2 - 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.

AB - 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.

KW - Acidic medium

KW - Cu-deposited Au electrode

KW - Electrocatalytic sensor

KW - Kinetics

KW - Nitrate reduction reaction

UR - http://www.scopus.com/inward/record.url?scp=85144042325&partnerID=8YFLogxK

U2 - 10.1016/j.rechem.2022.100702

DO - 10.1016/j.rechem.2022.100702

M3 - Article

AN - SCOPUS:85144042325

SN - 2211-7156

VL - 5

JO - Results in Chemistry

JF - Results in Chemistry

M1 - 100702

ER -

Cu-electrodeposited gold electrode for the sensitive electrokinetic investigations of nitrate reduction and detection of the nitrate ion in acidic medium

Abstract

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Keywords

ASJC Scopus subject areas

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