High dispersion and electrocatalytic properties of palladium nanoparticles on single-walled carbon nanotubes.
High dispersion and electrocatalytic properties of palladium nanoparticles on single-walled carbon nanotubes.
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DOI：
10.1016/j.jcis.2004.12.042
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发表时间：
2005-06
影响因子：
9.9
通讯作者：
Dao-Jun Guo;Hu-lin Li
中科院分区：
文献类型：
--
作者：
Dao-Jun Guo;Hu-lin Li
通过在单壁碳纳米管(SWNTs)表面形成八面体Pd(IV)络合物，将钯(Pd)纳米粒子电化学分散在单壁碳纳米管(SWNTs)上。用透射电子显微镜和X射线衍射仪对Pd-SWNT复合材料的结构和性质进行了表征。用循环伏安法研究了Pd/SWNT电极对联氨氧化的电催化性能，发现Pd/SWNT电极具有较高的电催化活性。这可能归因于钯催化剂的高分散性和SWNT载体的特殊性质。结果表明，Pd-SWNT复合材料在燃料电池中具有良好的应用前景。
Palladium (Pd) nanoparticles were electrochemically dispersed on single-walled carbon nanotubes (SWNTs) by electroreduction of octahedral Pd(IV) complex formed on the SWNT surface. The structure and nature of the resulting Pd–SWNT composites were characterized by transmission electron microscopy and X-ray diffraction. The electrocatalytic properties of the Pd/SWNT electrode for hydrazine oxidation have been investigated by cyclic voltammetry; high electrocatalytic activity of the Pd/SWNT electrode can be observed. This may be attributed to the high dispersion of palladium catalysts and the particular properties of SWNT supports. The results imply that the Pd–SWNT composite has good potential applications in fuel cells.