Cubic gyroid frameworks in mesostructured metal selenides created from tetrahedral Zn 2+, Cd 2+, and in 3+ ions and the [SbSe 4] 3- precursor

Nan Ding, Yasuhiro Takabayashi, Pier Lorenzo Solari, Kosmas Prassides, Robert J. Pcionek, Mercouri G Kanatzidis

Research output: Contribution to journalArticle

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Abstract

We describe a new group of well-organized cubic mesostructured metal chalcogenides. They were obtained from the assembly of the tetrahedral [SbSe 4] 3- unit and the linking metal ions In 3+, Zn 2+, and Cd 2+ in the presence of Cn (n = 12, 14, 16) pyridinium surfactants acting as structure-directing agents. The assembly of the cubic gyroid mesostructure is immediate upon mixing the reactants. The cubic structure, confirmed with X-ray diffraction and transmission electron microscopy, contains an infinitely extended M/Sb/Se network that defines a well-known periodic minimal surface known as the gyroid and possesses an Ia3̄d space group symmetry. The ion In 3+ is a more versatile linking metal and can also form a hexagonal mesostructure by changing the surfactant concentration or carbon chain length. The pore - pore separations and pore sizes are a function of surfactant chain length in all cases. The cubic mesophases exhibit reversible ion-exchange properties, although the cubic symmetry cannot be retained. All mesophases are mid-gap semiconductor materials with 1.5 <E g <2.0 eV. The nature of the Sb/Se species in the structure was probed with X-ray absorption near edge structure (XANES) measurements at the Sb L III edge. We observe an evolution in the spectra that is consistent with an increased proportion of the reduced [SbmSe3]3~ species at the expense of precursor [Sb VSe 4] 3- as the Lewis acidity of the metal ions increases along the series Zn 2+, Cd 2+, and In 3+, and this is in agreement with the Raman spectroscopic results which are also reported.

Original languageEnglish
Pages (from-to)4690-4699
Number of pages10
JournalChemistry of Materials
Volume18
Issue number19
DOIs
Publication statusPublished - Sep 19 2006

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Surface-Active Agents
Surface active agents
Metals
Ions
Chain length
Metal ions
Chalcogenides
X ray absorption
Acidity
Pore size
Ion exchange
Carbon
Semiconductor materials
Transmission electron microscopy
X ray diffraction

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

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Cubic gyroid frameworks in mesostructured metal selenides created from tetrahedral Zn 2+, Cd 2+, and in 3+ ions and the [SbSe 4] 3- precursor. / Ding, Nan; Takabayashi, Yasuhiro; Solari, Pier Lorenzo; Prassides, Kosmas; Pcionek, Robert J.; Kanatzidis, Mercouri G.

In: Chemistry of Materials, Vol. 18, No. 19, 19.09.2006, p. 4690-4699.

Research output: Contribution to journalArticle

Ding, Nan ; Takabayashi, Yasuhiro ; Solari, Pier Lorenzo ; Prassides, Kosmas ; Pcionek, Robert J. ; Kanatzidis, Mercouri G. / Cubic gyroid frameworks in mesostructured metal selenides created from tetrahedral Zn 2+, Cd 2+, and in 3+ ions and the [SbSe 4] 3- precursor. In: Chemistry of Materials. 2006 ; Vol. 18, No. 19. pp. 4690-4699.
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