Stepwise nanopore evolution in one-dimensional nanostructures

Jang Wook Choi, James McDonough, Sangmoo Jeong, Jee Soo Yoo, Candace Chan, Yi Cui

Research output: Contribution to journalArticle

199 Citations (Scopus)

Abstract

We report that established simple lithium (Li) ion battery cycles can be used to produce nanopores inside various useful one-dimensional (1D) nanostructures such as zinc oxide, silicon, and silver nanowires. Moreover, porosities of these 1D nanomaterials can be controlled in a stepwise manner by the number of Li-battery cycles. Subsequent pore characterization at the end of each cycle allows us to obtain detailed snapshots of the distinct pore evolution properties in each material due to their different atomic diffusion rates and types of chemical bonds. Also, this stepwise characterization led us to the first observation of pore size increases during cycling, which can be interpreted as a similar phenomenon to Ostwald ripening in analogous nanoparticle cases. Finally, we take advantage of the unique combination of nanoporosity and 1D materials and demonstrate nanoporous silicon nanowires (poSiNWs) as excellent supercapacitor (SC) electrodes in high power operations compared to existing devices with activated carbon.

Original languageEnglish (US)
Pages (from-to)1409-1413
Number of pages5
JournalNano Letters
Volume10
Issue number4
DOIs
StatePublished - Apr 14 2010
Externally publishedYes

Fingerprint

Nanopores
Silicon
Nanowires
Nanostructures
Zinc Oxide
porosity
Ostwald ripening
cycles
Lithium batteries
Chemical bonds
Zinc oxide
Silver
Nanostructured materials
Activated carbon
Pore size
nanowires
Porosity
Nanoparticles
Electrodes
lithium batteries

Keywords

  • Nanopore
  • Nanowire
  • Supercapacitor

ASJC Scopus subject areas

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

Cite this

Choi, J. W., McDonough, J., Jeong, S., Yoo, J. S., Chan, C., & Cui, Y. (2010). Stepwise nanopore evolution in one-dimensional nanostructures. Nano Letters, 10(4), 1409-1413. https://doi.org/10.1021/nl100258p

Stepwise nanopore evolution in one-dimensional nanostructures. / Choi, Jang Wook; McDonough, James; Jeong, Sangmoo; Yoo, Jee Soo; Chan, Candace; Cui, Yi.

In: Nano Letters, Vol. 10, No. 4, 14.04.2010, p. 1409-1413.

Research output: Contribution to journalArticle

Choi, JW, McDonough, J, Jeong, S, Yoo, JS, Chan, C & Cui, Y 2010, 'Stepwise nanopore evolution in one-dimensional nanostructures', Nano Letters, vol. 10, no. 4, pp. 1409-1413. https://doi.org/10.1021/nl100258p
Choi JW, McDonough J, Jeong S, Yoo JS, Chan C, Cui Y. Stepwise nanopore evolution in one-dimensional nanostructures. Nano Letters. 2010 Apr 14;10(4):1409-1413. https://doi.org/10.1021/nl100258p
Choi, Jang Wook ; McDonough, James ; Jeong, Sangmoo ; Yoo, Jee Soo ; Chan, Candace ; Cui, Yi. / Stepwise nanopore evolution in one-dimensional nanostructures. In: Nano Letters. 2010 ; Vol. 10, No. 4. pp. 1409-1413.
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