Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloy
Sb2Co alloy in powdery form was synthesized via reduction with gaseous hydrogen of the oxide CoSb2O6, obtained by the citrate gel-combustion technique. The precursor was an aqueous solution of antimony nitrate, cobalt nitrate and citric acid. The precursor solution with mole ratio Co(II)/Sb(V) of 1:...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Serbian Chemical Society
2009-01-01
|
| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.shd.org.rs/JSCS/Vol74/No1/06_4103_3808.pdf |
| _version_ | 1811286916961665024 |
|---|---|
| author | MAJA JOVIC MARINA DASIC KONRAD HOLL DEJAN ILIC SLAVKO MENTUS |
| author_facet | MAJA JOVIC MARINA DASIC KONRAD HOLL DEJAN ILIC SLAVKO MENTUS |
| author_sort | MAJA JOVIC |
| collection | DOAJ |
| description | Sb2Co alloy in powdery form was synthesized via reduction with gaseous hydrogen of the oxide CoSb2O6, obtained by the citrate gel-combustion technique. The precursor was an aqueous solution of antimony nitrate, cobalt nitrate and citric acid. The precursor solution with mole ratio Co(II)/Sb(V) of 1:2 was gelatinized by evaporation of water. The gel was heated in air up to the temperature of self-ignition. The product of gel combustion was a mixture of oxides and it had to be additionally thermally treated in order to be converted to pure CoSb2O6. The reduction of CoSb2O6 by gaseous hydrogen yielded powdery Sb2Co as the sole phase. The process of oxide reduction to alloy was controlled by thermogravimetry, while X-ray diffractometry was used to control the phase compositions of both the oxides and alloys. |
| first_indexed | 2024-04-13T03:08:18Z |
| format | Article |
| id | doaj.art-259e7b7ceecc4ab687e2c26102e74516 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 |
| language | English |
| last_indexed | 2024-04-13T03:08:18Z |
| publishDate | 2009-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-259e7b7ceecc4ab687e2c26102e745162022-12-22T03:05:08ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51392009-01-017415360Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloyMAJA JOVICMARINA DASICKONRAD HOLLDEJAN ILICSLAVKO MENTUSSb2Co alloy in powdery form was synthesized via reduction with gaseous hydrogen of the oxide CoSb2O6, obtained by the citrate gel-combustion technique. The precursor was an aqueous solution of antimony nitrate, cobalt nitrate and citric acid. The precursor solution with mole ratio Co(II)/Sb(V) of 1:2 was gelatinized by evaporation of water. The gel was heated in air up to the temperature of self-ignition. The product of gel combustion was a mixture of oxides and it had to be additionally thermally treated in order to be converted to pure CoSb2O6. The reduction of CoSb2O6 by gaseous hydrogen yielded powdery Sb2Co as the sole phase. The process of oxide reduction to alloy was controlled by thermogravimetry, while X-ray diffractometry was used to control the phase compositions of both the oxides and alloys.http://www.shd.org.rs/JSCS/Vol74/No1/06_4103_3808.pdfCoSb2O6Sb2Cogel-combustionintermetallic compoundthermo¬gravimetryX-ray diffraction |
| spellingShingle | MAJA JOVIC MARINA DASIC KONRAD HOLL DEJAN ILIC SLAVKO MENTUS Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloy Journal of the Serbian Chemical Society CoSb2O6 Sb2Co gel-combustion intermetallic compound thermo¬gravimetry X-ray diffraction |
| title | Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloy |
| title_full | Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloy |
| title_fullStr | Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloy |
| title_full_unstemmed | Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloy |
| title_short | Gel-combustion synthesis of CoSb2O6 and its reduction to powdery Sb2Co alloy |
| title_sort | gel combustion synthesis of cosb2o6 and its reduction to powdery sb2co alloy |
| topic | CoSb2O6 Sb2Co gel-combustion intermetallic compound thermo¬gravimetry X-ray diffraction |
| url | http://www.shd.org.rs/JSCS/Vol74/No1/06_4103_3808.pdf |
| work_keys_str_mv | AT majajovic gelcombustionsynthesisofcosb2o6anditsreductiontopowderysb2coalloy AT marinadasic gelcombustionsynthesisofcosb2o6anditsreductiontopowderysb2coalloy AT konradholl gelcombustionsynthesisofcosb2o6anditsreductiontopowderysb2coalloy AT dejanilic gelcombustionsynthesisofcosb2o6anditsreductiontopowderysb2coalloy AT slavkomentus gelcombustionsynthesisofcosb2o6anditsreductiontopowderysb2coalloy |