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Items 31-40 di 120
Ordered mesoporous tungsten carbide/carbon composites promoted Pt catalyst with high activity and stability for methanol electrooxidation
(2014)
The current anode materials used for direct methanol fuel cells (DMFCs) are expensive and not sufficiently durable for commercial development. One of the major challenges lies in the development of an inexpensive, efficient ...
Preparation of graphitic mesoporous carbon for the simultaneous detection of hydroquinone and catechol
(2013)
A graphitic mesoporous carbon (GMC) had been successfully synthesized using Ni-Fe layered double hydroxide (LDH) as both template and catalyst under a relatively low pyrolysis temperature. The techniques of X-ray diffraction, ...
Ceria promoted Pd/C catalysts for glucose electrooxidation in alkaline media
(2015)
Carbon support materials are modified by CeO2 through a microwave decomposition method, and then CeO2-C supported Pd catalysts are synthesized by a pulse microwave assisted polyol method. The content of CeO2 is appropriately ...
Pt-based catalysts for direct ethanol fuel cells
(2004)
A PtSn/C catalyst was synthesized by the direct decoration of commercial Pt/C with Sn as anode electrocatalyst in direct ethanol fuel cell (DEFC). The techniques of cyclic voltammetry, anode polarization curve, and single ...
Methane Activation on a La(0.6)Sr(0.4)Co(0.8)Fe(0.2)O(3) Perovsksite; Catalytic and Electrocatalytic Results
(1997)
The catalytic and electrocatalytic behaviour of the La(0.6)Sr(0.4)Co(0.8)Fe(0.2)O(3) (LSCF) perovskite deposited on yttria stabilized zirconia (YSZ), was studied during the reaction of methane oxidation. Experiments were ...
Bi- and tri-metallic Pt-based anode catalysts for direct ethanol fuel cells
(2004)
In the present work, several Pt-based anode catalysts supported on activated carbon XC-72R were prepared by using a novel method, characterized and tested. XRD analysis and TEM images indicated that all of anode catalysts ...
Direct alcohol fuel cells: Challenges and future trends
(2011)
Among the most considered future alternative energy conversion systems are fuel cells. A fuel cell is an electrochemical device that continuously and directly converts chemical energy to electricity with the most common ...
Low and non-platinum electrocatalysts for PEMFCs: Current status, challenges and prospects
(2012)
Platinum-based nanomaterials are the most commonly adopted electrocatalysts for both anode and cathode reactions in polymer electrolyte membrane fuel cells (PEMFCs) fed with hydrogen or low molecular alcohols. However, the ...
Carbon-supported PdSn and Pd3Sn2 anodes for glucose electrooxidation in alkaline media
(2014)
PdSn (20 wt.%) and Pd3Sn2 (20 wt.%) nanoparticles supported on Vulcan XC-72 carbon powders are prepared by a modified microwave-assisted polyol method and studied for the reaction of glucose electrooxidation in alkaline ...
A Thermodynamic approach of the aqueous-phase glucose reforming reaction for hydrogen production: A comparative study with glycerol and ethylene glycol
(2011)
In the present work is reported for the first time the thermodynamic analysis of aqueous-phase glucose reforming. The reaction has been studied at low temperature values (298-338K) and at atmospheric pressure with the ...