Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon

In this paper, we report the effect of BaAl2O4 addition (0-30 wt. %) on power consumption and oxygen sensing response of hot-spots developed on short Er123 ceramic rods of around 12 mm length synthesized using standard solid-state reaction. All the sensor rods showed increase in output current with...

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Main Authors:	Hassan .M, Yahya .A.K, Okamoto .T
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2011
Online Access:	http://journalarticle.ukm.my/2442/ http://journalarticle.ukm.my/2442/ http://journalarticle.ukm.my/2442/1/07_Hassan.pdf

id	ukm-2442
recordtype	eprints
spelling	ukm-24422016-12-14T06:31:37Z http://journalarticle.ukm.my/2442/ Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon Hassan .M, Yahya .A.K, Okamoto .T, In this paper, we report the effect of BaAl2O4 addition (0-30 wt. %) on power consumption and oxygen sensing response of hot-spots developed on short Er123 ceramic rods of around 12 mm length synthesized using standard solid-state reaction. All the sensor rods showed increase in output current with increasing voltage followed by sudden reduction in output current and appearance of hot spot. After appearance of hot spot, for each rod, output current was observed to decrease gradually with increasing voltage with the slope of the I-V curve gradually approaching zero. Output current after the hot spot formation showed sensitivity to oxygen partial pressure, pO2 between 1 to 100 kPa. Addition of 30 wt. % BaAl2O4 reduced the fluctuation of current and increased the sensitivity for pO2 below 10 kPa. In addition, overshoot current was also reduced and resulted in improvement of response time from around 10 s to 5 s. Our result also showed that minimum power consumption was significantly reduced in the Er123 rods with 30 wt. % BaAl2O4. Universiti Kebangsaan Malaysia 2011-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/2442/1/07_Hassan.pdf Hassan .M, and Yahya .A.K, and Okamoto .T, (2011) Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon. Sains Malaysiana, 40 (1). pp. 27-33. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	In this paper, we report the effect of BaAl2O4 addition (0-30 wt. %) on power consumption and oxygen sensing response of hot-spots developed on short Er123 ceramic rods of around 12 mm length synthesized using standard solid-state reaction. All the sensor rods showed increase in output current with increasing voltage followed by sudden reduction in output current and appearance of hot spot. After appearance of hot spot, for each rod, output current was observed to decrease gradually with increasing voltage with the slope of the I-V curve gradually approaching zero. Output current after the hot spot formation showed sensitivity to oxygen partial pressure, pO2 between 1 to 100 kPa. Addition of 30 wt. % BaAl2O4 reduced the fluctuation of current and increased the sensitivity for pO2 below 10 kPa. In addition, overshoot current was also reduced and resulted in improvement of response time from around 10 s to 5 s. Our result also showed that minimum power consumption was significantly reduced in the Er123 rods with 30 wt. % BaAl2O4.
format	Article
author	Hassan .M, Yahya .A.K, Okamoto .T,
spellingShingle	Hassan .M, Yahya .A.K, Okamoto .T, Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon
author_facet	Hassan .M, Yahya .A.K, Okamoto .T,
author_sort	Hassan .M,
title	Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon
title_short	Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon
title_full	Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon
title_fullStr	Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon
title_full_unstemmed	Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon
title_sort	effect of baal2o4 addition on power consumption and oxygen sensing response of er123 ceramic rods utilizing hot-spot phenomenon
publisher	Universiti Kebangsaan Malaysia
publishDate	2011
url	http://journalarticle.ukm.my/2442/ http://journalarticle.ukm.my/2442/ http://journalarticle.ukm.my/2442/1/07_Hassan.pdf
first_indexed	2023-09-18T19:36:05Z
last_indexed	2023-09-18T19:36:05Z
_version_	1777405279946670080

Effect of BaAl2O4 addition on power consumption and oxygen sensing response of Er123 ceramic rods utilizing hot-spot phenomenon

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