The preparation of small, amorphous, and metastable Germanium sulfide GeS particles by using microwave assisted sublimation is discussed. The vitreous GeS2 is formed with the help of rapid quenching of liquid GeS 2. An equilibrium has also been used to calculate the standard molar enthalpy of the formation for GeS2 and for the chemical transport of Ge. The germanium sulfide was prepared using wet chemistry and characterized by its Raman spectrum for checking purity. The particle sizes observed in the experiment are smaller where the sublimation of GeS is carried in Air flow. The increase of the flow rate of the carrier gas leads to a more rapid removal of the particles from the hot subliming system preventing particles agglomeration. The transmission electron microscopy observations indicate the formation of spherical particles that have diameter in the 10-20 nm range.

Amorphous germanium(li) sulfide particles obtained by microwave assisted decomposition of germanium (IV) sulfide / Bonometti, E.; Castiglioni, M.; Lausarot, P. M.; Leonelli, C.; Bondioli, F.; Pellacani, G. C.; Barba, A. A.. - In: MATERIALS RESEARCH INNOVATIONS. - ISSN 1432-8917. - 10:2(2006), pp. 41-42. [10.1179/mri.2006.10.2.xli]

Amorphous germanium(li) sulfide particles obtained by microwave assisted decomposition of germanium (IV) sulfide

Leonelli C.;Bondioli F.;Pellacani G. C.;
2006

Abstract

The preparation of small, amorphous, and metastable Germanium sulfide GeS particles by using microwave assisted sublimation is discussed. The vitreous GeS2 is formed with the help of rapid quenching of liquid GeS 2. An equilibrium has also been used to calculate the standard molar enthalpy of the formation for GeS2 and for the chemical transport of Ge. The germanium sulfide was prepared using wet chemistry and characterized by its Raman spectrum for checking purity. The particle sizes observed in the experiment are smaller where the sublimation of GeS is carried in Air flow. The increase of the flow rate of the carrier gas leads to a more rapid removal of the particles from the hot subliming system preventing particles agglomeration. The transmission electron microscopy observations indicate the formation of spherical particles that have diameter in the 10-20 nm range.
2006
10
2
41
42
Amorphous germanium(li) sulfide particles obtained by microwave assisted decomposition of germanium (IV) sulfide / Bonometti, E.; Castiglioni, M.; Lausarot, P. M.; Leonelli, C.; Bondioli, F.; Pellacani, G. C.; Barba, A. A.. - In: MATERIALS RESEARCH INNOVATIONS. - ISSN 1432-8917. - 10:2(2006), pp. 41-42. [10.1179/mri.2006.10.2.xli]
Bonometti, E.; Castiglioni, M.; Lausarot, P. M.; Leonelli, C.; Bondioli, F.; Pellacani, G. C.; Barba, A. A.
File in questo prodotto:
File Dimensione Formato  
Mat Res Innovat 2006.pdf

Accesso riservato

Descrizione: Articolo a stampa
Tipologia: Versione pubblicata dall'editore
Dimensione 520.36 kB
Formato Adobe PDF
520.36 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1208540
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
social impact