Evolution of dendritic platinum nanosheets into ripening-resistant holey sheets

Yujiang Song, Michael A. Hickner, Sivakumar R. Challa, Rachel M. Dorin, Robert M. Garcia, Haorong Wang, Ying Bing Jiang, Peng Li, Yan Qiu, Frank Van Swol, Craig J. Medforth, James E. Miller, Tochi Nwoga, Kazuo Kawahara, Wen Li, John A. Shelnutt

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Under electron-beam irradiation, dendritic platinum nanosheets structurally evolve into metastable "holey" nanosheets. Monte Carlo simulations of this structural transformation agree well with electron microscope images detailing the ripening process. The experiments and simulations show that nanoscale holes of a critical size are persistent and give holey sheets their morphological stability and sustained high surface area. Platinum nanostructures composed of these holey nanosheets exhibit improved durability in electrocatalytic reactions due to their remarkable ripening resistance.

Original languageEnglish (US)
Pages (from-to)1534-1539
Number of pages6
JournalNano letters
Volume9
Issue number4
DOIs
StatePublished - Apr 8 2009

Fingerprint

Nanosheets
Platinum
platinum
durability
simulation
electron microscopes
electron beams
irradiation
Electron beams
Nanostructures
Durability
Electron microscopes
Irradiation
Experiments

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Song, Y., Hickner, M. A., Challa, S. R., Dorin, R. M., Garcia, R. M., Wang, H., ... Shelnutt, J. A. (2009). Evolution of dendritic platinum nanosheets into ripening-resistant holey sheets. Nano letters, 9(4), 1534-1539. https://doi.org/10.1021/nl803582j
Song, Yujiang ; Hickner, Michael A. ; Challa, Sivakumar R. ; Dorin, Rachel M. ; Garcia, Robert M. ; Wang, Haorong ; Jiang, Ying Bing ; Li, Peng ; Qiu, Yan ; Van Swol, Frank ; Medforth, Craig J. ; Miller, James E. ; Nwoga, Tochi ; Kawahara, Kazuo ; Li, Wen ; Shelnutt, John A. / Evolution of dendritic platinum nanosheets into ripening-resistant holey sheets. In: Nano letters. 2009 ; Vol. 9, No. 4. pp. 1534-1539.
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author = "Yujiang Song and Hickner, {Michael A.} and Challa, {Sivakumar R.} and Dorin, {Rachel M.} and Garcia, {Robert M.} and Haorong Wang and Jiang, {Ying Bing} and Peng Li and Yan Qiu and {Van Swol}, Frank and Medforth, {Craig J.} and Miller, {James E.} and Tochi Nwoga and Kazuo Kawahara and Wen Li and Shelnutt, {John A.}",
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Song, Y, Hickner, MA, Challa, SR, Dorin, RM, Garcia, RM, Wang, H, Jiang, YB, Li, P, Qiu, Y, Van Swol, F, Medforth, CJ, Miller, JE, Nwoga, T, Kawahara, K, Li, W & Shelnutt, JA 2009, 'Evolution of dendritic platinum nanosheets into ripening-resistant holey sheets', Nano letters, vol. 9, no. 4, pp. 1534-1539. https://doi.org/10.1021/nl803582j

Evolution of dendritic platinum nanosheets into ripening-resistant holey sheets. / Song, Yujiang; Hickner, Michael A.; Challa, Sivakumar R.; Dorin, Rachel M.; Garcia, Robert M.; Wang, Haorong; Jiang, Ying Bing; Li, Peng; Qiu, Yan; Van Swol, Frank; Medforth, Craig J.; Miller, James E.; Nwoga, Tochi; Kawahara, Kazuo; Li, Wen; Shelnutt, John A.

In: Nano letters, Vol. 9, No. 4, 08.04.2009, p. 1534-1539.

Research output: Contribution to journalArticle

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T1 - Evolution of dendritic platinum nanosheets into ripening-resistant holey sheets

AU - Song, Yujiang

AU - Hickner, Michael A.

AU - Challa, Sivakumar R.

AU - Dorin, Rachel M.

AU - Garcia, Robert M.

AU - Wang, Haorong

AU - Jiang, Ying Bing

AU - Li, Peng

AU - Qiu, Yan

AU - Van Swol, Frank

AU - Medforth, Craig J.

AU - Miller, James E.

AU - Nwoga, Tochi

AU - Kawahara, Kazuo

AU - Li, Wen

AU - Shelnutt, John A.

PY - 2009/4/8

Y1 - 2009/4/8

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