Green synthesis of porous flower-like palladium with high electrocatalytic activity towards methanol oxidation

RSC Advances ◽  
2013 ◽  
Vol 3 (26) ◽  
pp. 10355 ◽  
Author(s):  
Ai-Jun Wang ◽  
Fang-Fang Li ◽  
Jie-Ning Zheng ◽  
Huan-Xiang Xi ◽  
Zi-Yan Meng ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Methanol Oxidation ◽  
Electrocatalytic Activity

scholarly journals Synthesis and Characterization of Electrodeposited C-PANI-Pd-Ni Composite Electrocatalyst for Methanol Oxidation

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
S. S. Mahapatra ◽  
S. Shekhar ◽  
B. K. Thakur ◽  
H. Priyadarshi
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Electrochemical Impedance ◽  
Synergistic Effects ◽  
Catalytic Performance ◽  
Charge Transfer Resistance ◽  
Pani Film ◽  
Composite Electrodes ◽  
Transfer Resistance ◽  
Onset Potential

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.

Hollow and porous palladium nanocrystals: synthesis and electrocatalytic application

2015 ◽  
Vol 3 (44) ◽  
pp. 21995-21999 ◽  
Author(s):  
Gengtao Fu ◽  
Mingxing Gong ◽  
Yawen Tang ◽  
Lin Xu ◽  
Dongmei Sun ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Soft Template ◽  
Template Method ◽  
Methanol Oxidation Reaction

Porous Pd nanobowls are synthesized via a facile bubble soft-template method, showing the outstanding electrocatalytic activity for methanol oxidation reaction.

Hydrothermal synthesis of Pt–Ag alloy nano-octahedra and their enhanced electrocatalytic activity for the methanol oxidation reaction

Nanoscale ◽  
2014 ◽  
Vol 6 (21) ◽  
pp. 12310-12314 ◽  
Author(s):  
Geng-Tao Fu ◽  
Ru-Guang Ma ◽  
Xue-Qing Gao ◽  
Yu Chen ◽  
Ya-Wen Tang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
High Quality ◽  
One Pot

High-quality Pt48Ag52 alloy nano-octahedra are synthesized via one-pot hydrothermal method showing excellent electrocatalytic activity and stability for methanol oxidation reaction.

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