Perovskites with cotton-like morphology consisting of nanoparticles and nanorods: Their synthesis by the combustion method and their NOx adsorption behavior

Md Hasan Zahir; Toshio Suzuki; Yoshinobu Fujishiro; Masanobu Awano

doi:10.1016/j.apcata.2009.03.038

Perovskites with cotton-like morphology consisting of nanoparticles and nanorods: Their synthesis by the combustion method and their NO_x adsorption behavior

Md Hasan Zahir^*
, Toshio Suzuki
, Yoshinobu Fujishiro
, Masanobu Awano

^*Corresponding author for this work

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

16 Scopus citations

Abstract

The perovskites La_0.8A_0.2MnO₃ (A = Cs) and La_0.8A_0.2Mn_0.8B_0.2O₃ (A = Cs and B = Ga) have been synthesized by a solution-combustion method using metal nitrates, urea and glucose as the fuel materials. The structures of the synthesized products were studied by XRD, FT-IR, SEM, and BET analyses. The morphology of La_0.8Cs_0.2MnO₃ (LCM) was cotton-like whereas the product of La_0.8Cs_0.2Mn_0.8Ga_0.2O₃ (LCMG) was comprised of rather voluminous cotton-like morphology coexisting with nanorods. The nanorods are quite long, straight, and round and have a much smoother surface structure. The perovskite products have been tested as catalysts for NO + NO₂ (NO_x) adsorption. The formation of various species during the adsorption of NO_x, issuing from a synthetic, lean-burn exhaust gas upon LCM and LCMG was studied using FT-IR. Rapid adsorption of NO_x by the perovskites with cotton-like morphology consisting of nanoparticles and nanorods was highly effective for NO_x removal from the gas phase.

Original language	English
Pages (from-to)	86-92
Number of pages	7
Journal	Applied Catalysis A: General
Volume	361
Issue number	1-2
DOIs	https://doi.org/10.1016/j.apcata.2009.03.038
State	Published - 20 Jun 2009
Externally published	Yes

Keywords

Lean-burn
NO trap catalyst
Nanorods
Perovskites

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

Access to Document

10.1016/j.apcata.2009.03.038

Cite this

@article{263d07a27d4641cbb7d7dc0a75ab3f8d,

title = "Perovskites with cotton-like morphology consisting of nanoparticles and nanorods: Their synthesis by the combustion method and their NOx adsorption behavior",

abstract = "The perovskites La0.8A0.2MnO3 (A = Cs) and La0.8A0.2Mn0.8B0.2O3 (A = Cs and B = Ga) have been synthesized by a solution-combustion method using metal nitrates, urea and glucose as the fuel materials. The structures of the synthesized products were studied by XRD, FT-IR, SEM, and BET analyses. The morphology of La0.8Cs0.2MnO3 (LCM) was cotton-like whereas the product of La0.8Cs0.2Mn0.8Ga0.2O3 (LCMG) was comprised of rather voluminous cotton-like morphology coexisting with nanorods. The nanorods are quite long, straight, and round and have a much smoother surface structure. The perovskite products have been tested as catalysts for NO + NO2 (NOx) adsorption. The formation of various species during the adsorption of NOx, issuing from a synthetic, lean-burn exhaust gas upon LCM and LCMG was studied using FT-IR. Rapid adsorption of NOx by the perovskites with cotton-like morphology consisting of nanoparticles and nanorods was highly effective for NOx removal from the gas phase.",

keywords = "Lean-burn, NO trap catalyst, Nanorods, Perovskites",

author = "Zahir, \{Md Hasan\} and Toshio Suzuki and Yoshinobu Fujishiro and Masanobu Awano",

year = "2009",

month = jun,

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doi = "10.1016/j.apcata.2009.03.038",

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journal = "Applied Catalysis A: General",

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TY - JOUR

T1 - Perovskites with cotton-like morphology consisting of nanoparticles and nanorods

T2 - Their synthesis by the combustion method and their NOx adsorption behavior

AU - Zahir, Md Hasan

AU - Suzuki, Toshio

AU - Fujishiro, Yoshinobu

AU - Awano, Masanobu

PY - 2009/6/20

Y1 - 2009/6/20

N2 - The perovskites La0.8A0.2MnO3 (A = Cs) and La0.8A0.2Mn0.8B0.2O3 (A = Cs and B = Ga) have been synthesized by a solution-combustion method using metal nitrates, urea and glucose as the fuel materials. The structures of the synthesized products were studied by XRD, FT-IR, SEM, and BET analyses. The morphology of La0.8Cs0.2MnO3 (LCM) was cotton-like whereas the product of La0.8Cs0.2Mn0.8Ga0.2O3 (LCMG) was comprised of rather voluminous cotton-like morphology coexisting with nanorods. The nanorods are quite long, straight, and round and have a much smoother surface structure. The perovskite products have been tested as catalysts for NO + NO2 (NOx) adsorption. The formation of various species during the adsorption of NOx, issuing from a synthetic, lean-burn exhaust gas upon LCM and LCMG was studied using FT-IR. Rapid adsorption of NOx by the perovskites with cotton-like morphology consisting of nanoparticles and nanorods was highly effective for NOx removal from the gas phase.

AB - The perovskites La0.8A0.2MnO3 (A = Cs) and La0.8A0.2Mn0.8B0.2O3 (A = Cs and B = Ga) have been synthesized by a solution-combustion method using metal nitrates, urea and glucose as the fuel materials. The structures of the synthesized products were studied by XRD, FT-IR, SEM, and BET analyses. The morphology of La0.8Cs0.2MnO3 (LCM) was cotton-like whereas the product of La0.8Cs0.2Mn0.8Ga0.2O3 (LCMG) was comprised of rather voluminous cotton-like morphology coexisting with nanorods. The nanorods are quite long, straight, and round and have a much smoother surface structure. The perovskite products have been tested as catalysts for NO + NO2 (NOx) adsorption. The formation of various species during the adsorption of NOx, issuing from a synthetic, lean-burn exhaust gas upon LCM and LCMG was studied using FT-IR. Rapid adsorption of NOx by the perovskites with cotton-like morphology consisting of nanoparticles and nanorods was highly effective for NOx removal from the gas phase.

KW - Lean-burn

KW - NO trap catalyst

KW - Nanorods

KW - Perovskites

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