Investigation of carbon supported Pd–Cu nanoparticles as anode catalysts for direct borohydride fuel cell
| Autor: | Gamze Behmenyar, Ayşe Nilgün Akin |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Chronoamperometry Electrochemistry Catalysis Anode Chemical engineering chemistry Direct borohydride fuel cell Electrical and Electronic Engineering Physical and Theoretical Chemistry Cyclic voltammetry Carbon Bimetallic strip |
| Zdroj: | Journal of Power Sources. 249:239-246 |
| ISSN: | 0378-7753 |
| Popis: | Carbon supported Pd and bimetallic Pd–Cu nanoparticles with different compositions are prepared by a modified polyol method and used as anode catalysts for direct borohydride fuel cell (DBFC). The physical and electrochemical properties of the as-prepared electrocatalysts are investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), ICP-AES, cyclic voltammetry (CV), chronoamperometry (CA), and fuel cell experiments. The results show that the carbon supported Pd–Cu bimetallic catalysts have much higher catalytic activity for the direct oxidation of BH 4 − than the carbon supported pure nanosized Pd catalyst, especially the Pd 50 Cu 50 /C catalyst presents the highest catalytic activity among all as-prepared catalysts, and the DBFC using Pd 50 Cu 50 /C as anode catalyst and Pt/C as cathode catalyst gives the best performance, and the maximum power density is 98 mW cm −2 at a current density of 223 mA cm −2 at 60 °C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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