期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 10, 期 5, 页码 802-805出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.02.038
关键词
complexing reduction; Pd nanoparticle; formic acid oxidation; electrocatalysis
A low temperature approach via the complexing of PdCl2 with EDTA followed by NaBH4 reduction has been used to prepare Vulcan XC-72 carbon-supported Pd nanoparticles (Pd/C). The mean particle size of the Pd/C catalysts is found to increase from 3.3 to 9.2 nm with heat-treated temperature. TEM images demonstrated that the I'd nanoparticles are well dispersed on the support with a relatively narrow particle size distribution. A correlation between the electrocatalytic activity of formic acid oxidation and particle size of the Pd/C catalysts indicates that the highest activity of formic acid oxidation is found with a Pd mean particle size of ca. 4.7 nm. The preparation method used here is cost-effective and should be easily scaled for industrial production. (C) 2008 Elsevier B.V. All rights reserved.
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