Ce0.8Sm0.2O1.9 synthesis for solid oxide fuel cell electrolyte by ultrasound assisted co-precipitation method

OKKAY, Hikmet; Bayramoglu, Mahmut; Öksüzömer, M. Faruk

doi:10.1016/j.ultsonch.2012.10.013

Ce0.8Sm0.2O1.9 synthesis for solid oxide fuel cell electrolyte by ultrasound assisted co-precipitation method

Yazarlar (3)

Doç. Dr. Hikmet OKKAY Gebze Teknik Üniversitesi, Türkiye

Mahmut Bayramoglu
Gebze Teknik Üniversitesi, Türkiye

M. Faruk Öksüzömer
Istanbul Üniversitesi, Türkiye

Makale Türü	Özgün Makale
Makale Alt Türü	SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı	Ultrasonics Sonochemistry
Dergi ISSN	1350-4177 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler	SCI-Expanded
Makale Dili	İngilizce
Basım Tarihi	05-2013
Cilt No	20
Sayı	3
Sayfalar	978 / 983
DOI Numarası	10.1016/j.ultsonch.2012.10.013
Makale Linki	http://dx.doi.org/10.1016/j.ultsonch.2012.10.013

Özet

In this study, the synthesis of Ce0.8Sm0.2O 1.9 (SDC) solid electrolyte by the ultrasound assisted co-precipitation method was accomplished to explore the effects of ultrasound power, ultrasound pulse ratio and probe type upon the ionic conductivity of SDC as well as the lattice parameter, the microstructure and the density. Fine powders of uniform crystallite sizes (average 11.70 ± 0.62 nm) were obtained, needing lower sintering temperature. The SDC powders were successfully sintered to a relative density of over 95% at 1200 °C (5 °C min ^-1) for 6 h. The micrograph of SDC pellets showed non-agglomerated and well-developed grains with average size of about 200 nm. X-ray diffraction analysis showed that the lattice parameter increased with increasing acoustic intensity and reached a maximum for the 14.94 W cm^-2. Further, a linear relationship was detected between the lattice parameter and the ionic conductivity, inspiring a dopant like effect of US on the electrolyte properties. The highest ionic conductivity as σ800°C = 3.07 × 10^-2 S cm^-1 with an activation energy E a = 0.871 kJ mol^-1 was obtained with pulsed ultrasound for an acoustic intensity of 14.94 W cm^-2, using 19 mm probe and 8:2 pulse ratio. © 2012 Elsevier B.V. All rights reserved.

Anahtar Kelimeler

Ceria | Electrolyte | Ionic conductivity | SOFC | Ultrasound

Science Direct

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
SCOPUS	24

Ce0.8Sm0.2O1.9 synthesis for solid oxide fuel cell electrolyte by ultrasound assisted co-precipitation method

Dergi Adı	ULTRASONICS SONOCHEMISTRY
Yayıncı	Elsevier B.V.
Açık Erişim	Evet
ISSN	1350-4177
E-ISSN	1873-2828
CiteScore	17,7
SJR	1,823
SNIP	2,036

Ce0.8Sm0.2O1.9 synthesis for solid oxide fuel cell electrolyte by ultrasound assisted co-precipitation method

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