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Fergusonite-type CeNbO4+δ : single crystal growth, symmetry revision and conductivity

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Fergusonite-type CeNbO4+δ : single crystal growth, symmetry revision and conductivity
นักวิจัย : Bayliss, Ryan D. , Pramana, Stevin S. , An, Tao , Wei, Fengxia , Kloc, Christian , White, Andrew J. P. , Skinner, Stephen J. , White, Timothy John , Baikie, Tom
คำค้น : DRNTU::Engineering::Materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Bayliss, R. D., Pramana, S. S., An, T., Wei, F., Kloc, C., White, A. J., Skinner, S. J., White, T. J., & Baikie, T. (2013). Fergusonite-type CeNbO4+δ : Single crystal growth, symmetry revision and conductivity. Journal of solid state chemistry, Vol 204, 291-297. , 0022-4596 , http://hdl.handle.net/10220/18175 , http://dx.doi.org/10.1016/j.jssc.2013.06.022
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of solid state chemistry
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Large fergusonite-type (ABO4, A=Ce, B=Nb) oxide crystals, a prototype electrolyte composition for solid oxide fuel cells (SOFC), were prepared for the first time in a floating zone mirror furnace under air or argon atmospheres. While CeNbO4 grown in air contained CeNbO4.08 as a minor impurity that compromised structural analysis, the argon atmosphere yielded a single phase crystal of monoclinic CeNbO4, as confirmed by selected area electron diffraction, powder and single crystal X-ray diffraction. The structure was determined in the standard space group setting C12/c1 (No. 15), rather than the commonly adopted I12/a1. AC impedance spectroscopy conducted under argon found that stoichiometric CeNbO4 single crystals showed lower conductivity compared to CeNbO4+δ confirming interstitial oxygen can penetrate through fergusonite and is responsible for the higher conductivity associated with these oxides.

บรรณานุกรม :
Bayliss, Ryan D. , Pramana, Stevin S. , An, Tao , Wei, Fengxia , Kloc, Christian , White, Andrew J. P. , Skinner, Stephen J. , White, Timothy John , Baikie, Tom . (2556). Fergusonite-type CeNbO4+δ : single crystal growth, symmetry revision and conductivity.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Bayliss, Ryan D. , Pramana, Stevin S. , An, Tao , Wei, Fengxia , Kloc, Christian , White, Andrew J. P. , Skinner, Stephen J. , White, Timothy John , Baikie, Tom . 2556. "Fergusonite-type CeNbO4+δ : single crystal growth, symmetry revision and conductivity".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Bayliss, Ryan D. , Pramana, Stevin S. , An, Tao , Wei, Fengxia , Kloc, Christian , White, Andrew J. P. , Skinner, Stephen J. , White, Timothy John , Baikie, Tom . "Fergusonite-type CeNbO4+δ : single crystal growth, symmetry revision and conductivity."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Bayliss, Ryan D. , Pramana, Stevin S. , An, Tao , Wei, Fengxia , Kloc, Christian , White, Andrew J. P. , Skinner, Stephen J. , White, Timothy John , Baikie, Tom . Fergusonite-type CeNbO4+δ : single crystal growth, symmetry revision and conductivity. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.