Simple preparation method of Pd nanoparticles on an Au electrode and its catalysis for dioxygen reduction
文献类型：期刊论文
| 作者 | Shen Y ; Bi LH ; Liu BF ; Dong SJ |
| 刊名 | new journal of chemistry
 |
| 出版日期 | 2003 |
| 卷号 | 27期号:6页码:938-941 |
| 关键词 | CROSS-COUPLING REACTIONS BLOCK-COPOLYMERS METAL NANOPARTICLES GOLD NANOPARTICLES OXYGEN REDUCTION HYDROGENATION FILMS AG ASSEMBLIES OXIDATION |
| ISSN号 | 1144-0546 |
| 通讯作者 | dong sj |
| 中文摘要 | a simple method for the fabrication of pd nanoparticles is described. the three-dimensional pd nanoparticle films are directly formed on a gold electrode surface by simple electrodeposition at -200 mv from a solution of 1 m h2so4+0.01 mm k2pdcl4. x-ray photoelectron spectroscopy verifies the constant composition of the pd nanoparticle films. atomic force microscopy proves that the as-prepared pd nanoparticles are uniformly distributed with an average particle diameter of 45-60 nm. it is confirmed that the morphology of the pd nanoparticle films are correlated with the electrodeposition time and the state of the au substrate. the resulting pd-nanoparticle-film-modified electrode possesses high catalytic activity for the reduction of dissolved oxygen in 0.1 m kcl solution. freshly prepared pd nanoparticles can catalyze the reduction of o-2 by a 4-electron process at -200 mv in 0.1 m kcl, but this system is not very stable. the cathodic peaks corresponding to the reduction of o-2 gradually decrease with potential cycling and at last reach a steady state. then two well-defined reduction peaks are observed at -390 and -600 mv vs. ag/agcl/kcl (sat.). those two peaks correspond to a 2-step process for the 4-electron reduction pathway of o-2 in this neutral medium. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000183198200009 |
| 公开日期 | 2010-09-13 |
| 源URL | [http://202.98.16.49/handle/322003/17397]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Shen Y,Bi LH,Liu BF,et al. Simple preparation method of Pd nanoparticles on an Au electrode and its catalysis for dioxygen reduction[J]. new journal of chemistry,2003,27(6):938-941. |
| APA | Shen Y,Bi LH,Liu BF,&Dong SJ.(2003).Simple preparation method of Pd nanoparticles on an Au electrode and its catalysis for dioxygen reduction.new journal of chemistry,27(6),938-941. |
| MLA | Shen Y,et al."Simple preparation method of Pd nanoparticles on an Au electrode and its catalysis for dioxygen reduction".new journal of chemistry 27.6(2003):938-941. |
入库方式： OAI收割
来源：长春应用化学研究所
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