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

Yıl 2019, , 841 - 849, 31.08.2019

Handan Özlü Torun

https://doi.org/10.18185/erzifbed.492636

Cited By: 2

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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