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Platinum nanodendrites.

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Title: Platinum nanodendrites.
Authors: Yujiang YS Song, Ying-Bing YJ Jiang, Haorong HW Wang, Donovan DAP Pena, Yan YQ Qiu, James JEM Miller, John JAS Shelnutt
Source: Nanotechnology. Mar2006, Vol. 17 Issue 5, p1300-1308. 9p.
Subjects: Platinum, Neurons, Electron microscopy, Porphyrins
Abstract: Nanoscale globular platinum dendrites were synthesized by chemical reduction of platinumcomplexes with ascorbic acid in aqueous micellar solutions. The dendritic platinumnanostructures can be reproducibly prepared on a gram scale, allowing their characterization byN2 adsorption as well as transmission electron microscopy (TEM), cross-section TEM,scanning TEM (STEM), scanning electron microscopy (SEM), and x-ray diffraction(XRD). Because of the high surface area, these nanoporous Pt dendrites havepotential applications as catalysts and electrocatalysts. Control over the sizeof these platinum dendrites was realized by seeding their autocatalytic growthat the beginning of the reaction either by addition of platinum nanoparticlesor by growing the seed particles using a porphyrin photocatalyst. The resultssupport a mechanism based on dendritic growth from the seeds by an autocatalyticmetal-reduction reaction occurring at the surface of the platinum dendrites rather than amechanism based on formation of nanoparticles that subsequently aggregate. [ABSTRACT FROM AUTHOR]
Copyright of Nanotechnology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 19721176
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Platinum nanodendrites.
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  Data: <searchLink fieldCode="AR" term="%22Yujiang+YS+Song%22">Yujiang YS Song</searchLink><br /><searchLink fieldCode="AR" term="%22Ying-Bing+YJ+Jiang%22">Ying-Bing YJ Jiang</searchLink><br /><searchLink fieldCode="AR" term="%22Haorong+HW+Wang%22">Haorong HW Wang</searchLink><br /><searchLink fieldCode="AR" term="%22Donovan+DAP+Pena%22">Donovan DAP Pena</searchLink><br /><searchLink fieldCode="AR" term="%22Yan+YQ+Qiu%22">Yan YQ Qiu</searchLink><br /><searchLink fieldCode="AR" term="%22James+JEM+Miller%22">James JEM Miller</searchLink><br /><searchLink fieldCode="AR" term="%22John+JAS+Shelnutt%22">John JAS Shelnutt</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Nanotechnology%22">Nanotechnology</searchLink>. Mar2006, Vol. 17 Issue 5, p1300-1308. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Platinum%22">Platinum</searchLink><br /><searchLink fieldCode="DE" term="%22Neurons%22">Neurons</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+microscopy%22">Electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Porphyrins%22">Porphyrins</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Nanoscale globular platinum dendrites were synthesized by chemical reduction of platinumcomplexes with ascorbic acid in aqueous micellar solutions. The dendritic platinumnanostructures can be reproducibly prepared on a gram scale, allowing their characterization byN2 adsorption as well as transmission electron microscopy (TEM), cross-section TEM,scanning TEM (STEM), scanning electron microscopy (SEM), and x-ray diffraction(XRD). Because of the high surface area, these nanoporous Pt dendrites havepotential applications as catalysts and electrocatalysts. Control over the sizeof these platinum dendrites was realized by seeding their autocatalytic growthat the beginning of the reaction either by addition of platinum nanoparticlesor by growing the seed particles using a porphyrin photocatalyst. The resultssupport a mechanism based on dendritic growth from the seeds by an autocatalyticmetal-reduction reaction occurring at the surface of the platinum dendrites rather than amechanism based on formation of nanoparticles that subsequently aggregate. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Nanotechnology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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