Synthesis of Dy and Yb Co-Doped CeO2 by Hydrothermal Method and Crystal Structure Analysis

Öz

In this study, crystal structure changes were investigated by dope types into cerium oxide in different ratios. The lanthanum group elements, Yb and Dy, were used as dope types. The contribution amount was 20%, and the effect of the additive and dope type on the crystal structure was evaluated. According to the findings, the total contribution rate was reduced by 10%. The hydrothermal method was used in the synthesis process. Sintering processes were carried out at 300, 600, and 900 ^oC temperatures and XRD were used in crystal structure determination. The particle size and element analysis were performed with SEM-EDS. As a result of the analysis studies, it was found that the total contribution rate of Ce_0.9Yb_0.05Dy_0.05 O₂with the hydrothermal method has a cubic crystal lattice. It was concluded that Ce_0.9Yb_0.05Dy_0.05 O₂compound could be used in the construction of ceramic electrolyte.

Eş Zamanlı Yb ve Dy Katkılanmış CeO2 Elektrolitinin Hidrotermal Yöntem ile Sentezi ve Kristal Yapı Analizi

Öz

Bu çalışmada, farklı katkı türlerinin, farklı oranlarda seryum oksit içerisine katkılanması ile kristal yapı değişiklikleri incelenmiştir. Katkı türleri olarak lantan grubu elementi olan Yb ve Dy kullanılmıştır. Öncelikli olarak katkı miktarı %20 olacak şekilde katkılamalar yapılmış, katkı miktarı ve katkı türüne ait yarıçap değerlerinin kristal yapı üzerinde etkisi değerlendirilmiştir. Elde edilen bulgulara göre, toplam katkı oranı %10 düşürülmüştür. Sentez işlemlerinde hidrotermal yöntem kullanılmıştır. Sinterleme işlemleri, 300,600 ve 900 ^oC sıcaklıklarda gerçekleştirilerek kristal yapı aydınlatmasında ise XRD kullanılmıştır. Tanecik boyutu ve element analizi SEM-EDS ile yapılmıştır. Yapılan analiz çalışmaları neticesinde, hidrotermal yöntem ile toplam katkı oranın %10 olan Ce_0.9Yb_0.05Dy_0.05O₂ bileşiğinin kübik kristal örgüye sahip olduğu bulgulanmıştır. Seramik elektrolit yapımında Ce_0.9Yb_0.05Dy_0.05 O₂ bileşiğinin kullanılabileceği sonucuna varılmıştır.

Anahtar Kelimeler

• Seramik elektrolit,hidrotermal

Kaynakça

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