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Browsing by Author "Samant, P.V."

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Carbon supports for methanol oxidation catalyst

Samant, P.V.; Rangel, C.M.; Romero, M.H.; Fernandes, J.B.; Figueiredo, J.L. (Journal of Power Sources. 151; 2005; 79-84.)

Highly mesoporous carbon was synthesized employing conventional sol-gel technique using resorcinol and formaldehyde. The porous carbon electrodes were characterized by X-ray powder diffraction, N-2, adsorption isotherm, ...
Carbon xerogel supported Pt and Pt-Ni catalysts for electro-oxidation of methanol in basic medium

Samant, P.V.; Fernandes, J.B.; Rangel, C.M.; Figueiredo, J.L. (Catalysis Today. 102; 2005; 173-176.)

Highly mesoporous carbon was obtained by carbonization of a polymer xerogel previously synthesized via sol-gel condensation of resorcinol and formaldehyde. The investigation describes electro-oxidation of methanol in ...
Development of carbon nanotube and carbon xerogel supported catalysts for the electro-oxidation of methanol in fuel cells

Figueiredo, J.L.; Pereira, M.F.R.; Serp, P.; Kalck, P.; Samant, P.V.; Fernandes, J.B. (Carbon. 44(12); 2006; 2516-2522.)

Multiwalled carbon nanotubes and high surface area mesoporous carbon xerogel were prepared and used as supports for monometallic Pt and bimetallic Pt-Ru catalysts. In order to assess the influence of the oxygen surface ...
Enhanced activity of Pt(HY) and Pt-Ru(HY) zeolite catalysts for electrooxidation of methanol in fuel cells

Samant, P.V.; Fernandes, J.B. (Journal of Power Sources. 125(2); 2004; 172-177.)

The investigation describes the synthesis of Pt and Pt-Ru catalysts by a new method using a HY zeolite support. The catalysts are used to study the anodic oxidation of methanol in an acidic medium to investigate their ...
Enhanced electrocatalytic activity of carbon-supported MnOx/Ru catalysts for methanol oxidation in fuel cells

Rebello, J.S.; Samant, P.V.; Figueiredo, J.L.; Fernandes, J.B. (Journal of Power Sources. 153(1); 2006; 36-40.)

This investigation reports the Possible use of carbon-supported manganese octahedral molecular sieves (OMS-2) for the electrooxidation of methanol. The effect of combining these materials with a commercially available 5 ...
Nickel-modified manganese oxide as an active electrocatalyst for oxidation of methanol in fuel cells

Samant, P.V.; Fernandes, J.B. (Journal of Power Sources. 79(1); 1999; 114-118.)

Anodic oxidation of methanol is investigated in sulfuric acid electrolyte at 25 degrees and 60 degrees C on iron and nickel modified manganese oxide electrodes. The oxide layer is produced as a thin film in situ by thermal ...

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