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<p style="text-align: justify;">Thionine-functionalized graphene oxide nanosheet as an efficient electrocatalyst for NADH oxidation and H<sub>2</sub>O<sub>2 </sub>reduction</p><p> </p>

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Title Statement <p style="text-align: justify;">Thionine-functionalized graphene oxide nanosheet as an efficient electrocatalyst for NADH oxidation and H<sub>2</sub>O<sub>2 </sub>reduction</p><p> </p>
 
Added Entry - Uncontrolled Name Ensafi, Ali A. ; Isfahan University of Technology, Iran
Zandi-Atashbar, Navid ; Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
Sarsahra, Zeynab Ahmadi; Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
Rezaei, Behzad ; Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
 
Uncontrolled Index Term Electrocatalysts, Electrodes, Modified electrodes, Functionalised electrodes, Thionine-functionalized graphene oxide, Graphene oxide, Hydrogen peroxide, Nicotinamide adenine dinucleotide, Chronoamperometry
 
Summary, etc. <p class="Abstract" style="text-align: justify;">Thionine-functionalized graphene oxide (Th-GO) has been successfully prepared for use as an efficient electrocatalyst in the electrochemical detection of hydrogen peroxide and nicotinamide adenine dinucleotide (NADH), and subsequently characterized by FT-IR spectroscopy, X-ray diffraction, transmission and scanning electron microscopy, and electrochemical methods. Electrochemical studies reveal that the carbon paste electrode modified with Th-GO decreases the working potentials to 0.24 V and 0.00 V towards oxidation of NADH and reduction of H<sub>2</sub>O<sub>2</sub>, respectively. Two linear ranges of 2.0–200 µmol L<sup>–1 </sup>and 200–500 µmol L<sup>–1</sup> and a detection limit of 0.43 µmol L<sup>–1</sup> have been obtained for NADH analysis. These quantitative data for H<sub>2</sub>O<sub>2</sub> determination are 2.0–3500 µmol L<sup>–1</sup> and 1.3 µmol L<sup>–1</sup> respectively. Th-GO/CPE shows satisfactory results in terms of repeatability, reproducibility, and selectivity towards NADH and H<sub>2</sub>O<sub>2</sub> analysis in both buffer and real sample.<strong></strong></p><br />
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-12-10 16:52:48
 
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http://op.niscair.res.in/index.php/IJCA/article/view/19265
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 56, ##issue.no## 12 (2017): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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