Synthesis and Characterization of Electrodeposited C-PANI-Pd-Ni Composite Electrocatalyst for Methanol Oxidation
Joint Authors
Shekhar, S.
Thakur, B. K.
Priyadarshi, H.
Mahapatra, S. S.
Source
International Journal of Electrochemistry
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-16
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Electropolymerization of aniline at the graphite electrodes was achieved by potentiodynamic method.
Electrodeposition of Pd (C-PANI-Pd) and Ni (C-PANI-Ni) and codeposition of Pd-Ni (C-PANI-Pd-Ni) microparticles into the polyaniline (PANI) film coated graphite (C-PANI) were carried out under galvanostatic control.
The morphology and composition of the composite electrodes were obtained using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) techniques.
The electrochemical behavior and electrocatalytic activity of the electrode were characterized using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometric (CA) methods in acidic medium.
The C-PANI-Pd-Ni electrode showed an improved catalytic performance towards methanol oxidation in terms of lower onset potential, higher anodic oxidation current, greater stability, lower activation energy, and lower charge transfer resistance.
The enhanced electrocatalytic activity might be due to the greater permeability of C-PANI films for methanol molecules, better dispersion of Pd-Ni microparticles into the polymer matrixes, and the synergistic effects between the dispersed metal particles and their matrixes.
American Psychological Association (APA)
Mahapatra, S. S.& Shekhar, S.& Thakur, B. K.& Priyadarshi, H.. 2014. Synthesis and Characterization of Electrodeposited C-PANI-Pd-Ni Composite Electrocatalyst for Methanol Oxidation. International Journal of Electrochemistry،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1036651
Modern Language Association (MLA)
Mahapatra, S. S.…[et al.]. Synthesis and Characterization of Electrodeposited C-PANI-Pd-Ni Composite Electrocatalyst for Methanol Oxidation. International Journal of Electrochemistry No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1036651
American Medical Association (AMA)
Mahapatra, S. S.& Shekhar, S.& Thakur, B. K.& Priyadarshi, H.. Synthesis and Characterization of Electrodeposited C-PANI-Pd-Ni Composite Electrocatalyst for Methanol Oxidation. International Journal of Electrochemistry. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1036651
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036651