Elmania, Nike Shielda (2010) Sintesis dan Karakterisasi Oksida Perovskit La1-XCaxCoO3-8 (0≤X≤0,5) dengan Metode Kopresipitasi. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 1406100056-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
1406100056-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (13MB) |
Abstract
Oksida perovskit La1-xCaxCoO3 (0≤x≤0,5) disintesis menggunakan metode kopresipitasi dengan NaOH sebagai agen pengendap. Oksida tersebut dianalisis fasa kristalnya menggunakan difraksi sinar-X (XRD), sedangakan komposisinya dianalisis menggunakan XRF. Difaktogram hasil analisis fasa kristal menunjukkan keberadaan fasa oksida perovskit yang ditandai munculnya puncak khas perovskit, yaitu sekitar 2θ : 23°, 32°, 33°, 41°, 47°, 53°, 58° dan 59°. Selain puncak khas oksida perovskit, ditemukan pula fasa non perovskit yaitu Co3O4. Substitusi Ca2+ akan mempengaruhi intensitas puncak perovskit pada difraktogram XRD. Sedangkan berdasarkan analisis XRF, komposisi yang paling mendekati komposisi sebenarnya adalah pada LaCoO3, dimana diperoleh mol La:Co sebesar 1,03:1.
====================================================================================================================================
Perovskite oxides La1-xCaxCoO3 (0≤x≤0,5) is synthesized using coprecipitation method with NaOH as precipitant agent. That oxides is analyzed in its crystal phase by X-Ray Diffraction (XRD), while its composition is analyzed by XRF. Difactogram of analysis result of its crystal phase has shown the existence of perovskite oxide phase by typical peak of perovskite, which is around 2θ : 23°, 32°, 33°, 41°, 47°, 53°, 58° and 59°. Besides typical peaks of perovskite oxide, there is also non perovskite phase, which is Co3O4. Ca2+ substitution could influence the intensity of perovskit peak on XRD pattern. While based on XRF analysis, composition which coincides the real composition is on LaCoO3 where La:Co mol by 1,03:1 is obtained.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 549.5 Elm s |
| Uncontrolled Keywords: | perovskit, kopresipitasi, La1-xCaxCoO3, Perovskite, Coprecipitation, La1-xCaxCoO3 |
| Subjects: | Q Science > QD Chemistry > QD481 Chemical structure. |
| Divisions: | Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | magang . |
| Date Deposited: | 15 Oct 2026 04:09 |
| Last Modified: | 15 Oct 2026 04:09 |
| URI: | http://repository.its.ac.id/id/eprint/145608 |
Actions (login required)
 |
View Item |