Transformative two-dimensional layered nanocrystals

Sohee Jeong, Jae Hyo Han, Jung Tak Jang, Jung Wook Seo, Jin Gyu Kim, Jinwoo Cheon

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Regioselective chemical reactions and structural transformations of two-dimensional (2D) layered transition-metal chalcogenide (TMC) nanocrystals are described. Upon exposure of 2D TiS2 nanodiscs to a chemical stimulus, such as Cu ion, selective chemical reaction begins to occur at the peripheral edges. This edge reaction is followed by ion diffusion, which is facilitated by interlayer nanochannels and leads to the formation of a heteroepitaxial TiS2-Cu2S intermediate. These processes eventually result in the generation of a single-crystalline, double-convex toroidal Cu2S nanostructure. Such 2D regioselective chemical reactions also take place when other ionic reactants are used. The observations made and chemical principles uncovered in this effort indicate that a general approach exists for building various toroidal nanocrystals of substances such as Ag2S, MnS, and CdS.

Original languageEnglish
Pages (from-to)14500-14503
Number of pages4
JournalJournal of the American Chemical Society
Volume133
Issue number37
DOIs
Publication statusPublished - 2011 Sep 21

Fingerprint

Nanoparticles
Nanocrystals
Chemical reactions
Metal Nanoparticles
Ions
Nanostructures
Transition metals
Crystalline materials

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Jeong, S., Han, J. H., Jang, J. T., Seo, J. W., Kim, J. G., & Cheon, J. (2011). Transformative two-dimensional layered nanocrystals. Journal of the American Chemical Society, 133(37), 14500-14503. https://doi.org/10.1021/ja2049594
Jeong, Sohee ; Han, Jae Hyo ; Jang, Jung Tak ; Seo, Jung Wook ; Kim, Jin Gyu ; Cheon, Jinwoo. / Transformative two-dimensional layered nanocrystals. In: Journal of the American Chemical Society. 2011 ; Vol. 133, No. 37. pp. 14500-14503.
@article{c75e232c0050443b860cf26d8d82285f,
title = "Transformative two-dimensional layered nanocrystals",
abstract = "Regioselective chemical reactions and structural transformations of two-dimensional (2D) layered transition-metal chalcogenide (TMC) nanocrystals are described. Upon exposure of 2D TiS2 nanodiscs to a chemical stimulus, such as Cu ion, selective chemical reaction begins to occur at the peripheral edges. This edge reaction is followed by ion diffusion, which is facilitated by interlayer nanochannels and leads to the formation of a heteroepitaxial TiS2-Cu2S intermediate. These processes eventually result in the generation of a single-crystalline, double-convex toroidal Cu2S nanostructure. Such 2D regioselective chemical reactions also take place when other ionic reactants are used. The observations made and chemical principles uncovered in this effort indicate that a general approach exists for building various toroidal nanocrystals of substances such as Ag2S, MnS, and CdS.",
author = "Sohee Jeong and Han, {Jae Hyo} and Jang, {Jung Tak} and Seo, {Jung Wook} and Kim, {Jin Gyu} and Jinwoo Cheon",
year = "2011",
month = "9",
day = "21",
doi = "10.1021/ja2049594",
language = "English",
volume = "133",
pages = "14500--14503",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "37",

}

Jeong, S, Han, JH, Jang, JT, Seo, JW, Kim, JG & Cheon, J 2011, 'Transformative two-dimensional layered nanocrystals', Journal of the American Chemical Society, vol. 133, no. 37, pp. 14500-14503. https://doi.org/10.1021/ja2049594

Transformative two-dimensional layered nanocrystals. / Jeong, Sohee; Han, Jae Hyo; Jang, Jung Tak; Seo, Jung Wook; Kim, Jin Gyu; Cheon, Jinwoo.

In: Journal of the American Chemical Society, Vol. 133, No. 37, 21.09.2011, p. 14500-14503.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Transformative two-dimensional layered nanocrystals

AU - Jeong, Sohee

AU - Han, Jae Hyo

AU - Jang, Jung Tak

AU - Seo, Jung Wook

AU - Kim, Jin Gyu

AU - Cheon, Jinwoo

PY - 2011/9/21

Y1 - 2011/9/21

N2 - Regioselective chemical reactions and structural transformations of two-dimensional (2D) layered transition-metal chalcogenide (TMC) nanocrystals are described. Upon exposure of 2D TiS2 nanodiscs to a chemical stimulus, such as Cu ion, selective chemical reaction begins to occur at the peripheral edges. This edge reaction is followed by ion diffusion, which is facilitated by interlayer nanochannels and leads to the formation of a heteroepitaxial TiS2-Cu2S intermediate. These processes eventually result in the generation of a single-crystalline, double-convex toroidal Cu2S nanostructure. Such 2D regioselective chemical reactions also take place when other ionic reactants are used. The observations made and chemical principles uncovered in this effort indicate that a general approach exists for building various toroidal nanocrystals of substances such as Ag2S, MnS, and CdS.

AB - Regioselective chemical reactions and structural transformations of two-dimensional (2D) layered transition-metal chalcogenide (TMC) nanocrystals are described. Upon exposure of 2D TiS2 nanodiscs to a chemical stimulus, such as Cu ion, selective chemical reaction begins to occur at the peripheral edges. This edge reaction is followed by ion diffusion, which is facilitated by interlayer nanochannels and leads to the formation of a heteroepitaxial TiS2-Cu2S intermediate. These processes eventually result in the generation of a single-crystalline, double-convex toroidal Cu2S nanostructure. Such 2D regioselective chemical reactions also take place when other ionic reactants are used. The observations made and chemical principles uncovered in this effort indicate that a general approach exists for building various toroidal nanocrystals of substances such as Ag2S, MnS, and CdS.

UR - http://www.scopus.com/inward/record.url?scp=80052814733&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052814733&partnerID=8YFLogxK

U2 - 10.1021/ja2049594

DO - 10.1021/ja2049594

M3 - Article

C2 - 21875086

AN - SCOPUS:80052814733

VL - 133

SP - 14500

EP - 14503

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 37

ER -