Guo Dao-Jun, Li Hu-Lin
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China.
J Colloid Interface Sci. 2005 Jun 1;286(1):274-9. doi: 10.1016/j.jcis.2004.12.042.
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.
通过电还原在单壁碳纳米管（SWNTs）表面形成的八面体钯（IV）配合物，将钯（Pd）纳米颗粒电化学分散在单壁碳纳米管上。通过透射电子显微镜和X射线衍射对所得钯-单壁碳纳米管复合材料的结构和性质进行了表征。采用循环伏安法研究了钯/单壁碳纳米管电极对肼氧化的电催化性能；可以观察到钯/单壁碳纳米管电极具有高电催化活性。这可能归因于钯催化剂的高分散性和单壁碳纳米管载体的特殊性质。结果表明，钯-单壁碳纳米管复合材料在燃料电池中具有良好的潜在应用前景。
