Background: The surfactant, didodecyl dimethyl ammonium bromide (DDAB), was used to immobilize myoglobin (Mb) onto glassy carbon (GC) electrode surfaces. The Mb/DDAB film on GC electrode showed good charge transport rates. Objectives: Mb in DDAB was utilised as a redox catalyst for reduction reactions requiring multi-electron transfers. Cyclic voltammetry has proved the Mb modified film electrode to be an effective electrocatalyst for the multi-electron reduction of bisulfite in aqueous buffered solutions. Methods: Using cyclic voltammetry technique, bisulfite reduction was studied at various concentrations and scan rates in different aqueous buffer solutions of various pH. Results: The values of ks of the film and kcat of the catalytic reaction of bisulfite were obtained at different pH values. The variation in the catalytic rate constant values with pH confirmed that the bisulfite is the reactive species. Conclusions: The catalytic bisulfite reduction was an irreversible, diffusion-controlled, and pH dependent process. The reduction of bisulfite by the Mb/DDAB film followed the EC’ catalytic mechanism.
| Published in | American Journal of Chemical Engineering (Volume 10, Issue 6) |
| DOI | 10.11648/j.ajche.20221006.11 |
| Page(s) | 116-120 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Mb/DDAB Film, Glassy Carbon (GC) Electrode, Electrochemical Methods, EC’ Catalytic Mechanism
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APA Style
Abdelatty Mohamed Radalla, Michael Dennis Ryan. (2022). Cyclic Voltammetric Studies on Electrocatalytic Reduction of Bisulfite in Aqueous Buffered Solutions Using a Myoglobin / Surfactant Film Electrode. American Journal of Chemical Engineering, 10(6), 116-120. https://doi.org/10.11648/j.ajche.20221006.11
ACS Style
Abdelatty Mohamed Radalla; Michael Dennis Ryan. Cyclic Voltammetric Studies on Electrocatalytic Reduction of Bisulfite in Aqueous Buffered Solutions Using a Myoglobin / Surfactant Film Electrode. Am. J. Chem. Eng. 2022, 10(6), 116-120. doi: 10.11648/j.ajche.20221006.11
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Download@article{10.11648/j.ajche.20221006.11,
author = {Abdelatty Mohamed Radalla and Michael Dennis Ryan},
title = {Cyclic Voltammetric Studies on Electrocatalytic Reduction of Bisulfite in Aqueous Buffered Solutions Using a Myoglobin / Surfactant Film Electrode},
journal = {American Journal of Chemical Engineering},
volume = {10},
number = {6},
pages = {116-120},
doi = {10.11648/j.ajche.20221006.11},
url = {https://doi.org/10.11648/j.ajche.20221006.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20221006.11},
abstract = {Background: The surfactant, didodecyl dimethyl ammonium bromide (DDAB), was used to immobilize myoglobin (Mb) onto glassy carbon (GC) electrode surfaces. The Mb/DDAB film on GC electrode showed good charge transport rates. Objectives: Mb in DDAB was utilised as a redox catalyst for reduction reactions requiring multi-electron transfers. Cyclic voltammetry has proved the Mb modified film electrode to be an effective electrocatalyst for the multi-electron reduction of bisulfite in aqueous buffered solutions. Methods: Using cyclic voltammetry technique, bisulfite reduction was studied at various concentrations and scan rates in different aqueous buffer solutions of various pH. Results: The values of ks of the film and kcat of the catalytic reaction of bisulfite were obtained at different pH values. The variation in the catalytic rate constant values with pH confirmed that the bisulfite is the reactive species. Conclusions: The catalytic bisulfite reduction was an irreversible, diffusion-controlled, and pH dependent process. The reduction of bisulfite by the Mb/DDAB film followed the EC’ catalytic mechanism.},
year = {2022}
}
TY - JOUR T1 - Cyclic Voltammetric Studies on Electrocatalytic Reduction of Bisulfite in Aqueous Buffered Solutions Using a Myoglobin / Surfactant Film Electrode AU - Abdelatty Mohamed Radalla AU - Michael Dennis Ryan Y1 - 2022/12/08 PY - 2022 N1 - https://doi.org/10.11648/j.ajche.20221006.11 DO - 10.11648/j.ajche.20221006.11 T2 - American Journal of Chemical Engineering JF - American Journal of Chemical Engineering JO - American Journal of Chemical Engineering SP - 116 EP - 120 PB - Science Publishing Group SN - 2330-8613 UR - https://doi.org/10.11648/j.ajche.20221006.11 AB - Background: The surfactant, didodecyl dimethyl ammonium bromide (DDAB), was used to immobilize myoglobin (Mb) onto glassy carbon (GC) electrode surfaces. The Mb/DDAB film on GC electrode showed good charge transport rates. Objectives: Mb in DDAB was utilised as a redox catalyst for reduction reactions requiring multi-electron transfers. Cyclic voltammetry has proved the Mb modified film electrode to be an effective electrocatalyst for the multi-electron reduction of bisulfite in aqueous buffered solutions. Methods: Using cyclic voltammetry technique, bisulfite reduction was studied at various concentrations and scan rates in different aqueous buffer solutions of various pH. Results: The values of ks of the film and kcat of the catalytic reaction of bisulfite were obtained at different pH values. The variation in the catalytic rate constant values with pH confirmed that the bisulfite is the reactive species. Conclusions: The catalytic bisulfite reduction was an irreversible, diffusion-controlled, and pH dependent process. The reduction of bisulfite by the Mb/DDAB film followed the EC’ catalytic mechanism. VL - 10 IS - 6 ER -
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