Paper Title:
Electrical Property of Mn and Co Dopants on La3Ni2O7±δ and La2.9Sr0.1Ni2O7±δ
  Abstract

La3Ni2O7±δ and La2.9Sr0.1Ni2O7±δ Ruddlesden-Popper nickelate were synthesized via citrate gel method. The electrical property of Mn and Co dopants on Ni site in these systems was investigated as possible cathode for solid oxide fuel cells. The result of X-ray diffraction shows the presence of La2NiO4 in La3Ni2-xMxO7±δ and La2.9Sr0.1Ni2-xMxO7±δ (M = Mn or Co) as M content increases from x = 0.1 for Mn and x = 0.2 for Co. With further increase of Mn dopant (x ≥ 0.4), LaMnO3 and La2O3 appear with La2NiO4. The grain size of sintered sample decreases as Mn content increases. However, it slightly decreases with increasing Co content. The TEC value increases with Co content. The DC four-point measurement shows a decrease in the conductivity as Co content increases for both La3Ni2-xCoxO7±δ and La2.9Sr0.1Ni2-xCoxO7±δ systems.

  Info
Periodical
Advanced Materials Research (Volumes 93-94)
Edited by
S. Suttiruengwong and W. Sricharussin
Pages
566-569
DOI
10.4028/www.scientific.net/AMR.93-94.566
Citation
W. Singkha, S. Kuharuangrong, "Electrical Property of Mn and Co Dopants on La3Ni2O7±δ and La2.9Sr0.1Ni2O7±δ", Advanced Materials Research, Vols. 93-94, pp. 566-569, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Gianfranco Dell'Agli, Giuseppe Mascolo, Maria Cristina Mascolo, Concetta Pagliuca, Paolo Perna, Umberto Scotti Di Uccio
Abstract:Mechanical mixtures of zirconia xerogel with variable content of crystalline Y2O3 up to 25 mol%, were hydrothermally treated by microwave...
391
Authors: Xiao Ya Li, Yun Yu, Dong Li Wang, Li Dong Chen
Abstract:[Ca2(Co0.65Cu0.35)2O4]0.624CoO2 polycrystalline samples were prepared using sol-gel method followed by spark plasma sintering....
805
Authors: Sung Doo Hwang, Wang Kee Min, Ik Min Park, Young Do Park, Young Seok Kim, Yong Ho Park
Abstract:P-type thermoelectric material Si0.8Ge0.2 was fabricated by mechanical alloying(MA) and Hot-Press Process(HP) The effect of Boron(0.25~2wt%)...
745
Authors: Min Zhou, Jing Feng Li, Jing Liu
Abstract:The Bi2Te3 compound was synthesized by mechanical alloying (MA) of highly pure constituents of Bi and Te powders, and then was consolidated...
538
Authors: Kwan Ho Park, Il Ho Kim
Abstract:Co4-xFexSb12-ySny skutterudites were synthesized by mechanical alloying and hot pressing, and...
65