Development of carbon nanotube and carbon xerogel supported catalysts for the electro-oxidation of methanol in fuel cells

Designing Nanostructured Carbon Xerogels

“…Moreover, there are research groups that used bimetallic catalysts for energy production in fuel cells. For example, Figueiredo and co-workers (Figueiredo et al, 2006) evaluated the electrochemical performance of direct-methanol fuel cells (DMFCs) assembled with Pt-Ru catalyst supported on oxidized carbon xerogels and the results reported in that study demonstrated that resorcinol-formaldehyde carbon xerogels were effective as supports for Pt/Ru particles. Pt-Ru bimetallic catalysts were also prepared by Arbizzani and et al (Arbizzani et al, 2007) for their use as anodes in DMFCs.…”

Influence of the Synthesis Method for Pt Catalysts Supported on Highly Mesoporous Carbon Xerogel and Vulcan Carbon Black on the Electro-Oxidation of Methanol

“…properties of such supports, as well as their porous structure and surface chemistry, influence the dispersion and stability of the metal employed as active phase, determining the activity of the catalyst [2,3].…”

PtRu Nanoparticles Deposited by the Sulfite Complex Method on Highly Porous Carbon Xerogels: Effect of the Thermal Treatment

“…The use of carbon gels as catalysts supports has been previously reported. Catalysts supported on carbon gels (aerogels, cryogels and xerogels) showed higher activities towards methanol oxidation and oxygen reduction, in comparison to catalysts supported on commercial carbon blacks, such as Vulcan [12,[15][16][17][18]. Vulcan XC-72R, with a surface area of ca.…”

“…Job et al reported the use of the 'Strong Electrostatic Adsorption' (SEA) method to prepare Pt/carbon xerogel catalysts, exhibiting high Pt dispersion at high metal content [15]. Figueiredo et al prepared Pt catalysts supported on carbon xerogels by impregnation with H 2 PtCl 6 , studying the effect of different reduction protocols [12].…”

“…In this context, an attractive approach for the anode, which appears as a possible solution to reduce metal loading and increase the catalytic efficiency, is the use of novel carbonaceous materials as electrocatalyst supports [6][7][8][9]. The nature of the support, as well as the interaction between the latter and the metal, has been demonstrated to be extremely important, given that it determines the physico-chemical properties of catalysts, such as dispersion, stability and morphology of metallic crystallites [10][11][12]. In addition, characteristics of the support can also determine the electrochemical properties of catalysts by altering mass transport, active electrochemical area and metal nanoparticle stability during the cell operation [13,14].…”