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Investigation of (La1-X,Cax)(Ni 0.25Fe0.25Cr0.25Co0.25)O3 for Solid Oxide Fuel Cells Cathode Materials.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Investigation of (La1-X,Cax)(Ni 0.25Fe0.25Cr0.25Co0.25)O3 for Solid Oxide Fuel Cells Cathode Materials./
Author:	Gajjala, Sai Ram.
Description:	1 online resource (55 pages)
Notes:	Source: Masters Abstracts International, Volume: 56-06.
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9780355134667

Investigation of (La1-X,Cax)(Ni 0.25Fe0.25Cr0.25Co0.25)O3 for Solid Oxide Fuel Cells Cathode Materials.
Gajjala, Sai Ram.

Investigation of (La1-X,Cax)(Ni 0.25Fe0.25Cr0.25Co0.25)O3 for Solid Oxide Fuel Cells Cathode Materials. - 1 online resource (55 pages)

Source: Masters Abstracts International, Volume: 56-06.

Thesis (M.S.)--Southern Illinois University at Carbondale, 2017.

Includes bibliographical references

Solid Oxide Fuel Cells (SOFCs) have gained tremendous amount of attraction as an alternate source of electrical energy in the recent decades. The purpose of this research is to develop cathode material for use in solid oxide fuel cells which demonstrates desired properties of high electrical conductivity, excellent chemical stability at high temperatures, desirable thermal expansion characteristics and which can be easily manufactured by sintering in conditions acceptable with other cell components. In the present research, stoichiometry's of La1-xCax(Fe0.25Co0.25Ni 0.25Cr0.25)O3 (x=0,0.1,0.2,0.3) (LCFCNC) were synthesized by using polymerizable precursor method proposed by pechini. The structure and morphology of the powder samples were characterized by X-ray diffraction and SEM. X-ray diffraction results revealed the formation of single phase orthorhombic distorted perovskite structure in all four samples. Prepared powders were made into pellets and were sintered in air at 1400°C for 2 hours. SEM analysis showed the densification of the pellets with the addition of calcium. AC resistance bridge was used to measure the electrical conductivity of the samples in air in the temperature range of 100-900°C. Study of electrical conductivity showed an increasing trend in electrical conductivity with the increase in temperature and the amount of calcium doped on A-site up to 20mol% and the sample with calcium 30mol% on A-site, showed sharp increase in electrical conductivity reaching a maximum of 50 S/cm at 800°C, showing that the present materials can be used as cathode materials in SOFC.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355134667Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Investigation of (La1-X,Cax)(Ni 0.25Fe0.25Cr0.25Co0.25)O3 for Solid Oxide Fuel Cells Cathode Materials.
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245 1 0 $a Investigation of (La1-X,Cax)(Ni 0.25Fe0.25Cr0.25Co0.25)O3 for Solid Oxide Fuel Cells Cathode Materials.
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500 $a Source: Masters Abstracts International, Volume: 56-06.
500 $a Adviser: Rasit Koc.
502 $a Thesis (M.S.)--Southern Illinois University at Carbondale, 2017.
504 $a Includes bibliographical references
520 $a Solid Oxide Fuel Cells (SOFCs) have gained tremendous amount of attraction as an alternate source of electrical energy in the recent decades. The purpose of this research is to develop cathode material for use in solid oxide fuel cells which demonstrates desired properties of high electrical conductivity, excellent chemical stability at high temperatures, desirable thermal expansion characteristics and which can be easily manufactured by sintering in conditions acceptable with other cell components. In the present research, stoichiometry's of La1-xCax(Fe0.25Co0.25Ni 0.25Cr0.25)O3 (x=0,0.1,0.2,0.3) (LCFCNC) were synthesized by using polymerizable precursor method proposed by pechini. The structure and morphology of the powder samples were characterized by X-ray diffraction and SEM. X-ray diffraction results revealed the formation of single phase orthorhombic distorted perovskite structure in all four samples. Prepared powders were made into pellets and were sintered in air at 1400°C for 2 hours. SEM analysis showed the densification of the pellets with the addition of calcium. AC resistance bridge was used to measure the electrical conductivity of the samples in air in the temperature range of 100-900°C. Study of electrical conductivity showed an increasing trend in electrical conductivity with the increase in temperature and the amount of calcium doped on A-site up to 20mol% and the sample with calcium 30mol% on A-site, showed sharp increase in electrical conductivity reaching a maximum of 50 S/cm at 800°C, showing that the present materials can be used as cathode materials in SOFC.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
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650 4 $a Energy. $3 784773
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710 2 $a Southern Illinois University at Carbondale. $b Mechanical Engineering. $3 1148509
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