Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 97: Issue 1
Influence of the thermal treatment in the crystallization of NiWO4 and ZnWO4
Authors:
A. de Oliveira UFPB Depto de Química, Laboratório de Combustíveis e Materiais João Pessoa PB Brazil

Search for other papers by A. de Oliveira in
Current site
Google Scholar
PubMed Close
,
J. Ferreira

Search for other papers by J. Ferreira in
Current site
Google Scholar
PubMed Close
,
Márcia Silva UFPB Depto de Química, Laboratório de Combustíveis e Materiais João Pessoa PB Brazil

Search for other papers by Márcia Silva in
Current site
Google Scholar
PubMed Close
,
Soraia de Souza UFPB Depto de Química, Laboratório de Combustíveis e Materiais João Pessoa PB Brazil

Search for other papers by Soraia de Souza in
Current site
Google Scholar
PubMed Close
,
F. Vieira UFPB Depto de Química, Laboratório de Combustíveis e Materiais João Pessoa PB Brazil

Search for other papers by F. Vieira in
Current site
Google Scholar
PubMed Close
,
E. Longo UNESP CMDMC, Centro Multidisciplinar de Desenvolvimento de Materiais Cerâmicos Araraquara SP Brazil

Search for other papers by E. Longo in
Current site
Google Scholar
PubMed Close
,
A. Souza UFPB Depto de Química, Laboratório de Combustíveis e Materiais João Pessoa PB Brazil

Search for other papers by A. Souza in
Current site
Google Scholar
PubMed Close
, and
Iêda Santos UFPB Depto de Química, Laboratório de Combustíveis e Materiais João Pessoa PB Brazil

Search for other papers by Iêda Santos in
Current site
Google Scholar
PubMed Close
Pages:
167–172
Online Publication Date:
24 Jul 2009
Publication Date:
01 Jul 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0244-8
Keywords:
Wolframite; ZnWO4; NiWO4; Thermal treatment; Order–disorder
Restricted access

Abstract  

NiWO4 and ZnWO4 were synthesized by the polymeric precursor method at low temperatures with zinc or nickel carbonate as secondary phase. The materials were characterized by thermal analysis (TG/DTA), infrared spectroscopy, UV–Vis spectroscopy and X-ray diffraction. NiWO4 was crystalline after calcination at 350 °C/12 h while ZnWO4 only crystallized after calcination at 400 °C for 2 h. Thermal decomposition of the powder precursor of NiWO4 heat treated for 12 h had one exothermic transition, while the precursor heat treated for 24 h had one more step between 600 and 800 °C with a small mass gain. Powder precursor of ZnWO4 presented three exothermic transitions, with peak temperatures and mass losses higher than NiWO4 has indicating that nickel made carbon elimination easier.

  • Collapse
  • Expand
Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Mar 2024 15 1 1
Apr 2024 12 1 1
May 2024 21 0 0
Jun 2024 3 0 0
Jul 2024 1 0 0
Aug 2024 14 0 0
Sep 2024 5 0 0