Direct methanol fuel cells (DMFCs) are promising electrochemical systems capable of producing electricity from the oxidation and reduction oxygen. In this work, effectiveness addition sulfuric acid as a supporting electrolyte for composition was assessed. The results showed that peak power curve in DMFCs with Pt/C cathode electrocatalysts increased progressively 70 mW cm−2 (0 mM H2SO4) to 115 c...

This paper examines polymer film morphology and several important properties of polyethylene-graft-sulfonated polyarylene ether sulfone (PE-g-s-PAES) proton exchange membranes (PEMs) for direct methanol fuel cell applications. Due to the extreme surface energy differences between a semi-crystalline and hydrophobic PE backbone and several amorphous and hydrophilic s-PAES side chains, the PE-g-s-...

Multiwalled carbon nanotube-supported Pt (Pt/MWNT) nanocomposites were prepared by both the aqueous solution reduction of a Pt salt (HCHO reduction) and the reduction of a Pt ion salt in ethylene glycol solution. For comparison, a Pt/XC-72 nanocomposite was also prepared by the EG method. The Pt/MWNT catalyst prepared by the EG method has a high and homogeneous dispersion of spherical Pt metal ...