The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders

Abstract In this work, cobalt and zinc-doped Ce0.8Gd0.2O1.9 samples were prepared starting from a commercial nanopowder and compared to the undoped material. The powder samples were pressed and afterwards sintered by a two-step procedure, before characterization by X-Ray Diffraction (XRD), X-ray pho...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Lúcia Adriana Villas-Boas [verfasserIn] Pedro Augusto de Paula Nascente [verfasserIn] Richard Landers [verfasserIn] Marcelo Campos [verfasserIn] Dulcina Maria Pinatti Ferreira de Souza [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2016

Schlagwörter:	gadolinium-doped ceria cobalt addition zinc addition XPS SOFC

Übergeordnetes Werk:	In: Materials Research - Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol), 2004, 19(2016), 5, Seite 1057-1063
Übergeordnetes Werk:	volume:19 ; year:2016 ; number:5 ; pages:1057-1063

Links:	Link aufrufen Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1590/1980-5373-MR-2015-0643

Katalog-ID:	DOAJ061371726

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spelling	10.1590/1980-5373-MR-2015-0643 doi (DE-627)DOAJ061371726 (DE-599)DOAJ123712eb1d7544cd9b707374ac9716cc DE-627 ger DE-627 rakwb eng TA401-492 Lúcia Adriana Villas-Boas verfasserin aut The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders 2016 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In this work, cobalt and zinc-doped Ce0.8Gd0.2O1.9 samples were prepared starting from a commercial nanopowder and compared to the undoped material. The powder samples were pressed and afterwards sintered by a two-step procedure, before characterization by X-Ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Impedance Spectroscopy (IS) in air. Cobalt or zinc additions are effective as sintering aid, allowing peak sintering temperatures around 1000°C to reach densifications above of 93% of theoretical density, showing no evidence for the presence of secondary phases. The total conductivity at 800 °C of pressed Zn-doped samples (6.7x10-2 S/cm) and Co-doped samples (7.5x10-2 S/cm) is similar for undoped samples (7.2x10-2 S/cm) showing that Zn and Co has a positive effect on densification without compromising the electrical conductivity. gadolinium-doped ceria cobalt addition zinc addition XPS SOFC Materials of engineering and construction. Mechanics of materials Pedro Augusto de Paula Nascente verfasserin aut Richard Landers verfasserin aut Marcelo Campos verfasserin aut Dulcina Maria Pinatti Ferreira de Souza verfasserin aut In Materials Research Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol), 2004 19(2016), 5, Seite 1057-1063 (DE-627)331755718 (DE-600)2053187-4 15161439 nnns volume:19 year:2016 number:5 pages:1057-1063 https://doi.org/10.1590/1980-5373-MR-2015-0643 kostenfrei https://doaj.org/article/123712eb1d7544cd9b707374ac9716cc kostenfrei http://www.scielo.br/pdf/mr/v19n5/1516-1439-mr-1980-5373-MR-2015-0643.pdf kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501057&tlng=en kostenfrei https://doaj.org/toc/1516-1439 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 19 2016 5 1057-1063
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callnumber-first	T - Technology
author	Lúcia Adriana Villas-Boas
spellingShingle	Lúcia Adriana Villas-Boas misc TA401-492 misc gadolinium-doped ceria misc cobalt addition misc zinc addition misc XPS misc SOFC misc Materials of engineering and construction. Mechanics of materials The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders
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topic_title	TA401-492 The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders gadolinium-doped ceria cobalt addition zinc addition XPS SOFC
topic	misc TA401-492 misc gadolinium-doped ceria misc cobalt addition misc zinc addition misc XPS misc SOFC misc Materials of engineering and construction. Mechanics of materials
topic_unstemmed	misc TA401-492 misc gadolinium-doped ceria misc cobalt addition misc zinc addition misc XPS misc SOFC misc Materials of engineering and construction. Mechanics of materials
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title	The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders
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title_full	The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders
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title_sort	effect of co and zn addition on densification and electrical properties of ceria-based nanopowders
callnumber	TA401-492
title_auth	The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders
abstract	Abstract In this work, cobalt and zinc-doped Ce0.8Gd0.2O1.9 samples were prepared starting from a commercial nanopowder and compared to the undoped material. The powder samples were pressed and afterwards sintered by a two-step procedure, before characterization by X-Ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Impedance Spectroscopy (IS) in air. Cobalt or zinc additions are effective as sintering aid, allowing peak sintering temperatures around 1000°C to reach densifications above of 93% of theoretical density, showing no evidence for the presence of secondary phases. The total conductivity at 800 °C of pressed Zn-doped samples (6.7x10-2 S/cm) and Co-doped samples (7.5x10-2 S/cm) is similar for undoped samples (7.2x10-2 S/cm) showing that Zn and Co has a positive effect on densification without compromising the electrical conductivity.
abstractGer	Abstract In this work, cobalt and zinc-doped Ce0.8Gd0.2O1.9 samples were prepared starting from a commercial nanopowder and compared to the undoped material. The powder samples were pressed and afterwards sintered by a two-step procedure, before characterization by X-Ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Impedance Spectroscopy (IS) in air. Cobalt or zinc additions are effective as sintering aid, allowing peak sintering temperatures around 1000°C to reach densifications above of 93% of theoretical density, showing no evidence for the presence of secondary phases. The total conductivity at 800 °C of pressed Zn-doped samples (6.7x10-2 S/cm) and Co-doped samples (7.5x10-2 S/cm) is similar for undoped samples (7.2x10-2 S/cm) showing that Zn and Co has a positive effect on densification without compromising the electrical conductivity.
abstract_unstemmed	Abstract In this work, cobalt and zinc-doped Ce0.8Gd0.2O1.9 samples were prepared starting from a commercial nanopowder and compared to the undoped material. The powder samples were pressed and afterwards sintered by a two-step procedure, before characterization by X-Ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Impedance Spectroscopy (IS) in air. Cobalt or zinc additions are effective as sintering aid, allowing peak sintering temperatures around 1000°C to reach densifications above of 93% of theoretical density, showing no evidence for the presence of secondary phases. The total conductivity at 800 °C of pressed Zn-doped samples (6.7x10-2 S/cm) and Co-doped samples (7.5x10-2 S/cm) is similar for undoped samples (7.2x10-2 S/cm) showing that Zn and Co has a positive effect on densification without compromising the electrical conductivity.
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title_short	The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders
url	https://doi.org/10.1590/1980-5373-MR-2015-0643 https://doaj.org/article/123712eb1d7544cd9b707374ac9716cc http://www.scielo.br/pdf/mr/v19n5/1516-1439-mr-1980-5373-MR-2015-0643.pdf http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501057&tlng=en https://doaj.org/toc/1516-1439
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up_date	2024-07-03T20:21:38.987Z
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The Effect of Co and Zn Addition on Densification and Electrical Properties of Ceria-Based Nanopowders

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