Morphology-Controlled Fabrication of Co3O4 Catalysts and Performance Towards Low Temperature CO Oxidation

Ruei Ci Wu; Chih Wei Tang; Moo Been Chang; Chia Chih Chang; Chih Chia Wang; Chen Bin Wang

doi:10.1007/s10562-020-03249-1

Morphology-Controlled Fabrication of Co₃O₄ Catalysts and Performance Towards Low Temperature CO Oxidation

Ruei Ci Wu, Chih Wei Tang, Moo Been Chang, Chia Chih Chang, Chih Chia Wang^*, Chen Bin Wang

^*Corresponding author for this work

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

11 Scopus citations

Abstract

Abstract: This article reports the heterogeneous catalysis of CO oxidation over nanostructured Co₃O₄ at low temperatures. The hydrothermal method was deftly exploited to fabricate nanostructured Co₃O₄ with three kinds of precipitants (i.e., urea, hexamethylene tetramine, and sodium hydroxide), which were thoroughly characterized with XRD, BET, TEM/SEM, HR-TEM, H₂-TPR, and XPS to understanding the correlation between the morphology of Co₃O₄ and the corresponding catalytic performance. Specifically, the straw-like nanorods, flower-like nanosheets, and honeycomb-like nanoparticles of Co₃O₄ could be controlled with the choice precipitants. Our comprehensive analysis indicated that the straw-like Co₃O₄ nanorods possessed preferential performance for CO catalytic oxidation among these nanostructured Co₃O₄ to produce CO₂. In addition, the results showed good long-term stability for practical application over the straw-like Co₃O₄ nanorods and showed no significant decay (the activity maintained 97% conversion) within 50 h at 125 °C. The novel insights of low-temperature CO oxidation on nanostructured Co₃O₄ from this work could hold promise for the development of new strategies and design principles for manufacturing highly active and stable catalysts. Graphic Abstract: [Figure not available: see fulltext.]

Original language	English
Journal	Catalysis Letters
DOIs	https://doi.org/10.1007/s10562-020-03249-1
State	Accepted/In press - 2020

Keywords

CO oxidation
Morphology-controlled
Nanostructured coO
Stability

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@article{80f0e88540fb46d48da977b031743309,

title = "Morphology-Controlled Fabrication of Co3O4 Catalysts and Performance Towards Low Temperature CO Oxidation",

abstract = "Abstract: This article reports the heterogeneous catalysis of CO oxidation over nanostructured Co3O4 at low temperatures. The hydrothermal method was deftly exploited to fabricate nanostructured Co3O4 with three kinds of precipitants (i.e., urea, hexamethylene tetramine, and sodium hydroxide), which were thoroughly characterized with XRD, BET, TEM/SEM, HR-TEM, H2-TPR, and XPS to understanding the correlation between the morphology of Co3O4 and the corresponding catalytic performance. Specifically, the straw-like nanorods, flower-like nanosheets, and honeycomb-like nanoparticles of Co3O4 could be controlled with the choice precipitants. Our comprehensive analysis indicated that the straw-like Co3O4 nanorods possessed preferential performance for CO catalytic oxidation among these nanostructured Co3O4 to produce CO2. In addition, the results showed good long-term stability for practical application over the straw-like Co3O4 nanorods and showed no significant decay (the activity maintained 97% conversion) within 50 h at 125 °C. The novel insights of low-temperature CO oxidation on nanostructured Co3O4 from this work could hold promise for the development of new strategies and design principles for manufacturing highly active and stable catalysts. Graphic Abstract: [Figure not available: see fulltext.]",

keywords = "CO oxidation, Morphology-controlled, Nanostructured coO, Stability",

author = "Wu, {Ruei Ci} and Tang, {Chih Wei} and Chang, {Moo Been} and Chang, {Chia Chih} and Wang, {Chih Chia} and Wang, {Chen Bin}",

year = "2020",

doi = "10.1007/s10562-020-03249-1",

language = "English",

journal = "Catalysis Letters",

issn = "1011-372X",

publisher = "Kluwer Academic Publishers",

}

TY - JOUR

T1 - Morphology-Controlled Fabrication of Co3O4 Catalysts and Performance Towards Low Temperature CO Oxidation

AU - Wu, Ruei Ci

AU - Tang, Chih Wei

AU - Chang, Moo Been

AU - Chang, Chia Chih

AU - Wang, Chih Chia

AU - Wang, Chen Bin

PY - 2020

Y1 - 2020

N2 - Abstract: This article reports the heterogeneous catalysis of CO oxidation over nanostructured Co3O4 at low temperatures. The hydrothermal method was deftly exploited to fabricate nanostructured Co3O4 with three kinds of precipitants (i.e., urea, hexamethylene tetramine, and sodium hydroxide), which were thoroughly characterized with XRD, BET, TEM/SEM, HR-TEM, H2-TPR, and XPS to understanding the correlation between the morphology of Co3O4 and the corresponding catalytic performance. Specifically, the straw-like nanorods, flower-like nanosheets, and honeycomb-like nanoparticles of Co3O4 could be controlled with the choice precipitants. Our comprehensive analysis indicated that the straw-like Co3O4 nanorods possessed preferential performance for CO catalytic oxidation among these nanostructured Co3O4 to produce CO2. In addition, the results showed good long-term stability for practical application over the straw-like Co3O4 nanorods and showed no significant decay (the activity maintained 97% conversion) within 50 h at 125 °C. The novel insights of low-temperature CO oxidation on nanostructured Co3O4 from this work could hold promise for the development of new strategies and design principles for manufacturing highly active and stable catalysts. Graphic Abstract: [Figure not available: see fulltext.]

AB - Abstract: This article reports the heterogeneous catalysis of CO oxidation over nanostructured Co3O4 at low temperatures. The hydrothermal method was deftly exploited to fabricate nanostructured Co3O4 with three kinds of precipitants (i.e., urea, hexamethylene tetramine, and sodium hydroxide), which were thoroughly characterized with XRD, BET, TEM/SEM, HR-TEM, H2-TPR, and XPS to understanding the correlation between the morphology of Co3O4 and the corresponding catalytic performance. Specifically, the straw-like nanorods, flower-like nanosheets, and honeycomb-like nanoparticles of Co3O4 could be controlled with the choice precipitants. Our comprehensive analysis indicated that the straw-like Co3O4 nanorods possessed preferential performance for CO catalytic oxidation among these nanostructured Co3O4 to produce CO2. In addition, the results showed good long-term stability for practical application over the straw-like Co3O4 nanorods and showed no significant decay (the activity maintained 97% conversion) within 50 h at 125 °C. The novel insights of low-temperature CO oxidation on nanostructured Co3O4 from this work could hold promise for the development of new strategies and design principles for manufacturing highly active and stable catalysts. Graphic Abstract: [Figure not available: see fulltext.]

KW - CO oxidation

KW - Morphology-controlled

KW - Nanostructured coO

KW - Stability

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U2 - 10.1007/s10562-020-03249-1

DO - 10.1007/s10562-020-03249-1

M3 - Article

AN - SCOPUS:85084632465

SN - 1011-372X

JO - Catalysis Letters

JF - Catalysis Letters

ER -

Morphology-Controlled Fabrication of Co₃O₄ Catalysts and Performance Towards Low Temperature CO Oxidation

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Keywords

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