Studies on the Solid Oxide Cell Perovskite Electrode Materials for Soot Oxidation Activity

Chaitra S. Shenoy; Sunaina S. Patil; P. Govardhan; Atmuri Shourya; Hari Prasad Dasari; M. B. Saidutta; Harshini Dasari

doi:10.1007/s40825-019-00144-z

Studies on the Solid Oxide Cell Perovskite Electrode Materials for Soot Oxidation Activity

Chaitra S. Shenoy
, Sunaina S. Patil
, P. Govardhan
, Atmuri Shourya
, Hari Prasad Dasari^*
, M. B. Saidutta
, Harshini Dasari

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Solid oxide cell (SOC) perovskite electrode materials (BSCF (Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ), LSCF (La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ) and LSCM (La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-δ)) were synthesised using microwave-assisted reverse-strike co-precipitation method and tested for soot oxidation activity. The calcined perovskite materials were characterized using FT-IR, XRD, SEM and BSE, BET and BJH and XPS analysis. The mean activation energy for soot oxidation was calculated from Ozawa plots at various heating rates (5, 10, 15 and 20 K/min) at different levels of soot conversions (T₁₀ to T₉₀) for BSCF, LSCM and LSCF perovskite materials and was around 133 ± 11.5, 138 ± 9.9 and 152 ± 7.2 kJ/mol, respectively. Irrespective of the heating rates, BSCF material showed the lowest T₅₀ temperature than compared to other samples, and it is correlated to the presence of Fe₃O₄ as a secondary phase.

Original language	English
Pages (from-to)	342-352
Number of pages	11
Journal	Emission Control Science and Technology
Volume	5
Issue number	4
DOIs	https://doi.org/10.1007/s40825-019-00144-z
Publication status	Published - 15-12-2019

All Science Journal Classification (ASJC) codes

Automotive Engineering
Pollution
Management, Monitoring, Policy and Law
Health, Toxicology and Mutagenesis

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title = "Studies on the Solid Oxide Cell Perovskite Electrode Materials for Soot Oxidation Activity",

abstract = "Solid oxide cell (SOC) perovskite electrode materials (BSCF (Ba0.5Sr0.5Co0.8Fe0.2O3-δ), LSCF (La0.6Sr0.4Co0.2Fe0.8O3-δ) and LSCM (La0.75Sr0.25Cr0.5Mn0.5O3-δ)) were synthesised using microwave-assisted reverse-strike co-precipitation method and tested for soot oxidation activity. The calcined perovskite materials were characterized using FT-IR, XRD, SEM and BSE, BET and BJH and XPS analysis. The mean activation energy for soot oxidation was calculated from Ozawa plots at various heating rates (5, 10, 15 and 20 K/min) at different levels of soot conversions (T10 to T90) for BSCF, LSCM and LSCF perovskite materials and was around 133 ± 11.5, 138 ± 9.9 and 152 ± 7.2 kJ/mol, respectively. Irrespective of the heating rates, BSCF material showed the lowest T50 temperature than compared to other samples, and it is correlated to the presence of Fe3O4 as a secondary phase.",

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AU - Shenoy, Chaitra S.

AU - Patil, Sunaina S.

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AU - Shourya, Atmuri

AU - Dasari, Hari Prasad

AU - Saidutta, M. B.

AU - Dasari, Harshini

PY - 2019/12/15

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N2 - Solid oxide cell (SOC) perovskite electrode materials (BSCF (Ba0.5Sr0.5Co0.8Fe0.2O3-δ), LSCF (La0.6Sr0.4Co0.2Fe0.8O3-δ) and LSCM (La0.75Sr0.25Cr0.5Mn0.5O3-δ)) were synthesised using microwave-assisted reverse-strike co-precipitation method and tested for soot oxidation activity. The calcined perovskite materials were characterized using FT-IR, XRD, SEM and BSE, BET and BJH and XPS analysis. The mean activation energy for soot oxidation was calculated from Ozawa plots at various heating rates (5, 10, 15 and 20 K/min) at different levels of soot conversions (T10 to T90) for BSCF, LSCM and LSCF perovskite materials and was around 133 ± 11.5, 138 ± 9.9 and 152 ± 7.2 kJ/mol, respectively. Irrespective of the heating rates, BSCF material showed the lowest T50 temperature than compared to other samples, and it is correlated to the presence of Fe3O4 as a secondary phase.

AB - Solid oxide cell (SOC) perovskite electrode materials (BSCF (Ba0.5Sr0.5Co0.8Fe0.2O3-δ), LSCF (La0.6Sr0.4Co0.2Fe0.8O3-δ) and LSCM (La0.75Sr0.25Cr0.5Mn0.5O3-δ)) were synthesised using microwave-assisted reverse-strike co-precipitation method and tested for soot oxidation activity. The calcined perovskite materials were characterized using FT-IR, XRD, SEM and BSE, BET and BJH and XPS analysis. The mean activation energy for soot oxidation was calculated from Ozawa plots at various heating rates (5, 10, 15 and 20 K/min) at different levels of soot conversions (T10 to T90) for BSCF, LSCM and LSCF perovskite materials and was around 133 ± 11.5, 138 ± 9.9 and 152 ± 7.2 kJ/mol, respectively. Irrespective of the heating rates, BSCF material showed the lowest T50 temperature than compared to other samples, and it is correlated to the presence of Fe3O4 as a secondary phase.

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Studies on the Solid Oxide Cell Perovskite Electrode Materials for Soot Oxidation Activity

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