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Titolo:
Phase behavior of organic-inorganic crystal - Temperature-dependent diffuse reflectance infrared spectroscopy of silver stearate
Autore:
Lee, SJ; Han, SW; Choi, HJ; Kim, K;
Indirizzi:
Seoul Natl Univ, Sch Chem & Mol Engn, Seoul 151742, South Korea Seoul NatlUniv Seoul South Korea 151742 Engn, Seoul 151742, South Korea Seoul Natl Univ, Ctr Mol Catalysis, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 ysis, Seoul 151742, South Korea
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL D
fascicolo: 1-3, volume: 16, anno: 2001,
pagine: 293 - 296
SICI:
1434-6060(200109)16:1-3<293:PBOOC->2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
NORMAL-ALKYL CHAINS; H STRETCHING MODES; LAYERED STRUCTURE; LONG-CHAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Lee, SJ Seoul Natl Univ, Sch Chem & Mol Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 oul 151742, South Korea
Citazione:
S.J. Lee et al., "Phase behavior of organic-inorganic crystal - Temperature-dependent diffuse reflectance infrared spectroscopy of silver stearate", EUR PHY J D, 16(1-3), 2001, pp. 293-296

Abstract

We have investigated the structure and phase behavior of nonmolecularly layered silver stearate by means of temperature-dependent diffuse reflectanceinfrared Fourier transform (DRIFT) spectroscopy. Upon heating the sample, remarkable spectral changes tool, place. The first phase transition took place that might be associated with a premelting event characterized by the formation of gauche conformers at 390-420 K. A second phase transition took place in which silver nanoparticles with a size of similar to4 nm were formed by thermal decomposition of silver stearate at 520-550 K. These silver nanoparticles, derivatized by stearate, were readily spread as a monolayer at air/water interface, and could be packed in 3-D assemblies by the Langmuir-Blodgett method.

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Documento generato il 04/04/20 alle ore 12:26:47