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学科主题: 物理化学
题名: Templated growth of platinum nanowheels using the inhomogeneous reaction environment of bicelles
作者: Garcia, Robert M.1, 2;  Song, Yujiang1, 3;  Dorin, Rachel M.1, 2;  Wang, Haorong1, 2;  Moreno, Andres M.1, 2;  Jiang, Ying-Bing1, 2;  Tian, Yongming1, 2;  Qiu, Yan1, 2;  Medforth, Craig J.1, 2;  Coker, Eric N.1;  van Swol, Frank1, 2;  Miller, James E.1;  Shelnutt, John A.1, 4
通讯作者: 宋玉江 ;  JohnA.Shelnutt
刊名: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
发表日期: 2011
DOI: 10.1039/c0cp01930e
卷: 13, 期:11, 页:4846-4852
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 3T3
产权排名: 3,2
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
摘要: Templated growth of platinum nanowheels using the inhomogeneous reaction environment of bicelles
研究领域[WOS]: Chemistry ;  Physics
英文摘要: Novel platinum nanowheels were synthesized by the reduction of aqueous platinum complex with ascorbic acid in the presence of disk-like bicelles. The platinum nanowheels possess thickened centers and flared edges that are connected by dendritic platinum nanosheets. This structural complexity can be attributed to the inhomogeneous micro-environment of the templating bicelles consisting of a central bi-layer region and a high curvature rim. The formation mechanism of the nanowheels was investigated by imaging nanostructures at different stages of the reaction. The templating bicelles were also imaged by TEM with the aid of negative staining. The variation of reaction parameters including platinum concentration, temperature, and total concentration of surfactants (CTAB + FC7) led to other types of platinum nanostructures, such as circular dendritic nanosheets with a tunable diameter and rectangular dendritic nanosheets. Interestingly, under irradiation by a TEM electron beam, the dendritic nanosheet portion of the nanowheels transforms into a metastable holey sheet. In addition, the platinum nanowheels have an electrochemical active surface area comparable to that of ETEK platinum black and thus are expected to have potential applications in catalysis.
关键词[WOS]: MODEL MEMBRANES ;  MAGNETIC ALIGNMENT ;  PROTEINS ;  EMISSIONS ;  NANOSTRUCTURES ;  SHEETS ;  CELLS
语种: 英语
WOS记录号: WOS:000287930100009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115738
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA
2.Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Univ Georgia, Dept Chem, Athens, GA 30602 USA

Recommended Citation:
Garcia, Robert M.,Song, Yujiang,Dorin, Rachel M.,et al. Templated growth of platinum nanowheels using the inhomogeneous reaction environment of bicelles[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2011,13(11):4846-4852.
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