期刊
REACTION KINETICS MECHANISMS AND CATALYSIS
卷 134, 期 1, 页码 163-177出版社
SPRINGER
DOI: 10.1007/s11144-021-02056-y
关键词
Alloy; Borohydride electrooxidation reaction; BOR kinetic parameters; Direct borohydride fuel cell; PdZn/C electrocatalyst
资金
- Scientific and Technological Research Council of Turkey (TuBTAK) [215M255]
Pd and a series of PdZn bimetallic nanoparticles supported on Vulcan XC-72 carbon were prepared for the oxidation reaction of BH4- (BOR) using ultrasound-assisted NaBH4 impregnation-reduction method. The PdZn-01/C catalyst exhibited the highest current density and stability towards BOR among all the prepared catalysts.
Herein, Pd and a series of PdZn bimetallic nanoparticles supported on Vulcan XC-72 carbon were prepared by ultrasound-assisted NaBH4 impregnation-reduction method for the oxidation reaction of BH4- (BOR). The physical properties of the electrocatalysts were identified by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and inductively coupled plasma optical emission spectrometry techniques. The electrochemical properties were characterized by cyclic voltammetry, chronoamperometry and linear sweep voltammetry (LSV). The results were indicated uniformly dispersed PdZn nanoparticles on carbon with an average particle size of 5 nm. The number of electrons calculated from LSV data was found to be in the range of 3.0-3.5. Among all the prepared catalysts, PdZn-01/C exhibited the highest current density (1818 mA mg(Pd)(-1)) and stability towards BOR.
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