Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO
A co-precipitation method has been used to prepare ternary mixed oxides based on ceria with the general formula V x Cu x Ce 1 – 2x O 2 , where x was varied between 0.05 and 0.45. The structural and surface properties as well as the morphologies of the solids were examined by thermogravimetric analys...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2009-11-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.27.9.811 |
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| author | Christothea Attipa Charis R. Theocharis |
| author_facet | Christothea Attipa Charis R. Theocharis |
| author_sort | Christothea Attipa |
| collection | DOAJ |
| description | A co-precipitation method has been used to prepare ternary mixed oxides based on ceria with the general formula V x Cu x Ce 1 – 2x O 2 , where x was varied between 0.05 and 0.45. The structural and surface properties as well as the morphologies of the solids were examined by thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction studies, nitrogen adsorption isotherms, Fourier-transform infrared spectroscopy and scanning electron microscopy. For samples where the vanadium and copper content was low (x ≤ 0.3), the surface area increased and the pore distribution shifted towards the micropore range. The sample V 0.05 Cu 0.05 Ce 0.9 O 2 exhibited the highest surface area and the sample V 0.45 Cu 0.45 Ce 0.1 O 2 the smallest. The samples were calcined within the temperature range 473–1073 K. When the vanadium content was increased to x ≥ 0.3 and the calcination temperature set at 673 K, a phase with composition CeVO 4 was detected via X-ray diffractometry, in addition to a V 2 O 5 and a CeO 2 phase. The FT-IR spectra confirmed the above results. |
| format | Article |
| id | doaj-art-0a62368482c242a682b5a5d9e61e029e |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2009-11-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-0a62368482c242a682b5a5d9e61e029e2025-02-03T10:13:00ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382009-11-012710.1260/0263-6174.27.9.811Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeOChristothea AttipaCharis R. TheocharisA co-precipitation method has been used to prepare ternary mixed oxides based on ceria with the general formula V x Cu x Ce 1 – 2x O 2 , where x was varied between 0.05 and 0.45. The structural and surface properties as well as the morphologies of the solids were examined by thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction studies, nitrogen adsorption isotherms, Fourier-transform infrared spectroscopy and scanning electron microscopy. For samples where the vanadium and copper content was low (x ≤ 0.3), the surface area increased and the pore distribution shifted towards the micropore range. The sample V 0.05 Cu 0.05 Ce 0.9 O 2 exhibited the highest surface area and the sample V 0.45 Cu 0.45 Ce 0.1 O 2 the smallest. The samples were calcined within the temperature range 473–1073 K. When the vanadium content was increased to x ≥ 0.3 and the calcination temperature set at 673 K, a phase with composition CeVO 4 was detected via X-ray diffractometry, in addition to a V 2 O 5 and a CeO 2 phase. The FT-IR spectra confirmed the above results.https://doi.org/10.1260/0263-6174.27.9.811 |
| spellingShingle | Christothea Attipa Charis R. Theocharis Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO Adsorption Science & Technology |
| title | Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO |
| title_full | Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO |
| title_fullStr | Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO |
| title_full_unstemmed | Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO |
| title_short | Investigation of the Synthesis and Properties of Ternary V–Cu–Ce Oxides of Composition VCuCeO |
| title_sort | investigation of the synthesis and properties of ternary v cu ce oxides of composition vcuceo |
| url | https://doi.org/10.1260/0263-6174.27.9.811 |
| work_keys_str_mv | AT christotheaattipa investigationofthesynthesisandpropertiesofternaryvcuceoxidesofcompositionvcuceo AT charisrtheocharis investigationofthesynthesisandpropertiesofternaryvcuceoxidesofcompositionvcuceo |