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| One-Step Synthesis of Au-Pd Alloy Nanodendrites and Their Catalytic Activity | |
| L. H. Shi; A. Q. Wang; T. Zhang; B. S. Zhang; D. S. Su; H. Q. Li; Y. J. Song | |
| 2013 | |
| Source Publication | Journal of Physical Chemistry C
 |
| ISSN | 1932-7447 |
| Volume | 117Issue:24Pages:12526-12536 |
| Abstract | Au-Pd bimetallic nanocrystals with well-defined dendritic morphology, uniform size, and homogeneous alloy structure were synthesized in an aqueous solution by using ascorbic acid as the reductant and triblock copolymer P123 as the stabilizing agent. In this synthesis, ascorbic acid played a key role in directing the nanodendritic morphology while the presence of Pd was mandatory for the formation of well-defined nanodendrites. Without Pd, only faceted nanoparticles of gold were formed under the same reaction conditions. Other reaction variables such as the addition sequence and the dropping rate of the metal precursors, the type and concentration of the stabilizing agents, and the reaction time and temperature were all found to affect the size uniformity and morphology perfectness to some extent. The Au/Pd atomic ratio could be tuned in a wide range without deteriorating the nanodendritic morphology. The as-prepared Au-Pd nanodendrites exhibited excellent catalytic activities toward electroxidation of methanol and reduction of 2-nitrophenol, and the catalytic performances could be effectively tuned by the Au/Pd ratio. |
| description.department | [shi, lihua ; wang, aiqin ; zhang, tao] chinese acad sci, dalian inst chem phys, state key lab catalysis, dalian 116023, peoples r china. [shi, lihua] univ chinese acad sci, beijing 100049, peoples r china. [zhang, bingsen ; su, dangsheng] chinese acad sci, shenyang natl lab mat sci, inst met res, catalysis & mat div, shenyang 110016, peoples r china. [li, huanqiao ; song, yujiang] chinese acad sci, dalian inst chem phys, dalian natl lab clean energy, dalian 116023, peoples r china. ; zhang, t (reprint author), chinese acad sci, dalian inst chem phys, state key lab catalysis, dalian 116023, peoples r china. ; taozhang@dicp.ac.cn |
| Keyword | Pt Bimetallic Nanodendrites Shape-controlled Synthesis Core-shell Nanoparticles Palladium Nanocrystals Hydrogen-peroxide Electrocatalytic Activity Platinum Nanostructures Selective Oxidation Oxygen Reduction Highly Efficient |
| URL | 查看原文 |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/71459 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | L. H. Shi,A. Q. Wang,T. Zhang,et al. One-Step Synthesis of Au-Pd Alloy Nanodendrites and Their Catalytic Activity[J]. Journal of Physical Chemistry C,2013,117(24):12526-12536. |
| APA | L. H. Shi.,A. Q. Wang.,T. Zhang.,B. S. Zhang.,D. S. Su.,...&Y. J. Song.(2013).One-Step Synthesis of Au-Pd Alloy Nanodendrites and Their Catalytic Activity.Journal of Physical Chemistry C,117(24),12526-12536. |
| MLA | L. H. Shi,et al."One-Step Synthesis of Au-Pd Alloy Nanodendrites and Their Catalytic Activity".Journal of Physical Chemistry C 117.24(2013):12526-12536. |
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