Elemental Ge nanophases are obtained in silica starting from a sol-gel synthesis. The process comprises the preparation of silica xerogel doped by Ge(IV), substituting for Si(IV) in the oxide network, followed by reduction and phase separation during the sintering process by reaction with H-2 or CO. X-ray diffraction, Raman spectroscopy and high resolution transmission electron microscopy show that reactions with H-2 give rise in the porous silica network to nanometer-sized crystallization of elemental cubic germanium. (c) 2007 Elsevier Ltd. All rights reserved.

Chiodini, N., Paleari, A., Catti, M., Brovelli, S., DI MARTINO, D., Lauria, A., et al. (2007). Sol-gel synthesis of Ge nanophases in silica. SOLID STATE COMMUNICATIONS, 144(10-nov), 429-432 [10.1016/j.ssc.2007.09.021].

Sol-gel synthesis of Ge nanophases in silica

CHIODINI, NORBERTO;PALEARI, ALBERTO MARIA FELICE;CATTI, MICHELE;BROVELLI, SERGIO;DI MARTINO, DANIELA;LAURIA, ALESSANDRO;LORENZI, ROBERTO;SPINOLO, GIORGIO MARIO
2007

Abstract

Elemental Ge nanophases are obtained in silica starting from a sol-gel synthesis. The process comprises the preparation of silica xerogel doped by Ge(IV), substituting for Si(IV) in the oxide network, followed by reduction and phase separation during the sintering process by reaction with H-2 or CO. X-ray diffraction, Raman spectroscopy and high resolution transmission electron microscopy show that reactions with H-2 give rise in the porous silica network to nanometer-sized crystallization of elemental cubic germanium. (c) 2007 Elsevier Ltd. All rights reserved.
Articolo in rivista - Articolo scientifico
nanostructures; chemical synthesis; scanning and transmission electron microscopy; inelastic light scattering
English
429
432
Chiodini, N., Paleari, A., Catti, M., Brovelli, S., DI MARTINO, D., Lauria, A., et al. (2007). Sol-gel synthesis of Ge nanophases in silica. SOLID STATE COMMUNICATIONS, 144(10-nov), 429-432 [10.1016/j.ssc.2007.09.021].
Chiodini, N; Paleari, A; Catti, M; Brovelli, S; DI MARTINO, D; Lauria, A; Lorenzi, R; Spinolo, G
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/1309
Citazioni
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 5
Social impact