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<p>Single walled carbon nanotubes decorated vanadyl phthalocyanine composite for electrochemical oxygen reduction in fuel cells</p><p> </p>

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Title Statement <p>Single walled carbon nanotubes decorated vanadyl phthalocyanine composite for electrochemical oxygen reduction in fuel cells</p><p> </p>
 
Added Entry - Uncontrolled Name Sonkar, Piyush Kumar; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
Ganesan, Vellaichamy ; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
Singh, Ravi Kant; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
Yadav, Dharmendra Kumar; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
Gupta, Rupali ; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
Yadav, Mamta ; Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
Department of Science and Technology, India
 
Uncontrolled Index Term catalysis and analytical chemistry
Electrochemistry, Electrocatalysis, Oxygen reduction, Fuel cells, Cyclic voltammetry, Single walled carbon nanotubes, Vanadyl phthalocyanine
 
Summary, etc. <p style="text-align: justify;">Vanadyl phthalocyanine (VOPc) has been immobilized on single walled carbon nanotubes by the adsorption process and characterized using UV-vis spectroscopy, infrared spectroscopy and X-ray diffraction techniques. Electrochemical characterization of VOPc immobilized SWCNTs (SWCNTs-VOPc) has been done by coating an aqueous colloid of SWCNTs-VOPc on glassy carbon electrode (represented as GC/SWCNTs-VOPc). GC/SWCNTs-VOPc exhibits a pair of peaks at –265 and –97 mV (at 20 mV s<sup>-1 </sup>in 0.1 <em>M</em> H<sub>2</sub>SO<sub>4</sub>) due to the characteristic redox process, V<sup>IV/III</sup> of VOPc. Further, electrocatalytic reduction of oxygen is analysed using GC/SWCNTs-VOPc electrode by cyclic voltammetry. GC/SWCNTs-VOPc electrode efficiently reduces oxygen in 0.1 <em>M</em> H<sub>2</sub>SO<sub>4 </sub>with a low onset potential of 0.16 V. Also, GC/SWCNTs-VOPc exhibits significant storage stability, retaining 91% of its original catalytic reduction current after 10 days storage at room temperature in air and dry conditions.</p><p> </p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-12-10 11:43:03
 
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http://op.niscair.res.in/index.php/IJCA/article/view/17720
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 56, ##issue.no## 8 (2017): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/17720/53260
 
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