Download PDF by Pierluigi Barbaro, Claudio Bianchini: Catalysis for Sustainable Energy Production

By Pierluigi Barbaro, Claudio Bianchini

ISBN-10: 3527320954

ISBN-13: 9783527320950

This primary publication to target the subject serves as a foundation for outlining a roadmap for the position of catalysis in power creation. As such, this prepared reference for researchers and engineers covers the entire scorching themes from a extensive standpoint -- gas cells, hydrogen construction and garage, methane garage and business catalysis. With its research of recent instructions and possibilities within the zone and its integration of business, governmental and educational issues of view, this can be a genuine must-have for everybody drawn to "greener" power creation.

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6 (a) E( j) and (b) P( j ) curves at 110  C of a DMFC with different Pt/Ru atomic ratios in the anode catalyst (&, 50 : 50; ~, 70 : 30; ^, 80 : 20). involves the transfer of six electrons and the formation of many adsorbed species and reaction intermediates, among them adsorbed CO, which blocks the active sites of platinum catalysts. 5 V), so that more effective electrocatalysts are needed in order to increase the reaction rate and thus to decrease ha. Therefore, several bi- and trimetallic catalysts were developed, among which Pt/Ru-based electrocatalysts lead to the best performance.

Ruthenium-based catalysts have shown poor performance in the oxygen reduction reaction because of the oxide film that is formed at the catalyst surface; as a result, the electrode becomes inactive towards oxygen reduction [102]. To achieve good activity and stability towards ORR, iron porphyrins have to be pyrolyzed at about 700  C. Then, the onset of the reduction wave is close to that obtained with a platinum catalyst. Moreover, the main reaction product remains water, even though some hydrogen peroxide is produced particularly at high overvoltages [103, 104].

5 (20 wt%)/C. Laboratory-made cathode Pt (40 wt%)/C and anode catalysts prepared according to the B€ onnemann method. All electrodes were loaded with 2 mg cmÀ2 of metal. Anionic membrane, Morgane ADP from Solvay. 1 M EG, at various potentials (each 100 mV) from 130 to 1030 mV/RHE (1) and chromatograms of the anodic outlet of a SAMFC working with a Pt/C anode without fuel recirculation (2). 1/C anode without fuel recirculation (2). Electrocatalysts were prepared according to the ‘water-in-oil’ microemulsion method.

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Catalysis for Sustainable Energy Production by Pierluigi Barbaro, Claudio Bianchini

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