Catalytic Efficiency of Pt-Ru-Mo/MWNT Catalysts Prepared by γ-ray Irradiation and Chemical Reduction Method in Direct Methanol Fuel Cell

2012 ◽  
Vol 7 (5) ◽  
pp. 488-493 ◽  
Author(s):  
Sang-Ho Kim ◽  
Ji-Ung Jeon ◽  
Hai-Doo Kwen ◽  
Seong-Ho Choi
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Catalytic Efficiency ◽  
Chemical Reduction Method ◽  
Direct Methanol ◽  
Γ Ray ◽  
Methanol Fuel Cell

Synthesis and Characterization of PdCoNi Nanocomposites Supported on Graphene as Anodic Electrocatalysts for Methanol Oxidation in Direct Methanol Fuel Cell

2015 ◽  
Vol 658 ◽  
pp. 190-194 ◽  
Author(s):  
Siriporn Meeying ◽  
Pinsuda Viravathana ◽  
Atchana Wongchaisuwat ◽  
Siree Tangbunsuk
Keyword(s):  
Fuel Cell ◽  
Methanol Oxidation ◽  
Photoelectron Spectroscopy ◽  
Direct Methanol Fuel Cell ◽  
Chemical Reduction ◽  
Electrochemical Analysis ◽  
Xps Spectra ◽  
X Ray ◽  
Direct Methanol ◽  
Methanol Fuel Cell

PdCoNi nanocomposites supported on graphene (PdCoNi/G) have been obtained from chemical reduction of metal catalysts and graphite oxide (GO) with a strong reducing agent, followed by calcination at high temperature under N2 condition, and used for electrooxidation of methanol in direct methanol fuel cell. The morphologies and structural properties of electrocatalysts were examined by scanning electron microscopy (SEM) and X-ray diffraction (XRD). X-ray spectroscopy techniques (X-ray photoelectron spectroscopy XPS) was used to investigate the chemical state of the synthesized catalysts. The results of Pd XPS spectra showed the metallic Pd and PdO phases for precalcined and calcined PdCoNi/G nanocomposite, respectively. The X-ray measurement of Co and Ni displayed the various metallic oxides in synthesized electrocatalysts. For electrochemical analysis, cyclic voltammetry (CV) and chronoamperometry (CA) indicated that the PdCoNi/G nanocomposites enhanced the methanol oxidation, compared to the lower activity in the calcined electrocatalysts.

Direct Methanol Fuel Cell Battery Replacement Program

2011 ◽  
Author(s):  
Timothy Hall ◽  
Corey Grice ◽  
Bogdan Gurau ◽  
Paul McGinn
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Direct Methanol ◽  
Methanol Fuel Cell
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