Co and Cu-Based Mixed Metal Oxides Foster Reduction of CO and Hydrocarbons Emissions from Small Combustion Devices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F25%3A00619005" target="_blank" >RIV/67985858:_____/25:00619005 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/25:10258922

Výsledek na webu

<a href="https://hdl.handle.net/11104/0365806" target="_blank" >https://hdl.handle.net/11104/0365806</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cctc.202500092" target="_blank" >10.1002/cctc.202500092</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Co and Cu-Based Mixed Metal Oxides Foster Reduction of CO and Hydrocarbons Emissions from Small Combustion Devices

Popis výsledku v původním jazyce

Residential stoves, commonly used for heating, are a significant source of emissions due to the harmful substances produced during biomass combustion, yet they remain largely unregulated. The use of catalytic systems presents a promising approach for mitigating these emissions. This study investigates the potential of Cu-Mg-Mn-Al and Co-Mg-Mn-Al mixed metal oxides, synthesized from hydrotalcite precursors via coprecipitation and calcination, for reducing emissions of CO, C3H8, and CH4. The physicochemical properties of the catalysts were thoroughly characterized using techniques such as AAS, XPS, XRD, H-2-TPR, CO2-TPD, and NH3-TPD. Catalytic performance was evaluated over a temperature range of 100-500 degrees C in both two-component (CO + C3H8 or CO + CH4) and three-component (CO + C3H8 + CH4) gas mixtures with oxygen. Results revealed that Co-based catalysts outperformed Cu-based ones in catalytic activity. However, in the three-component mixture, catalytic activity decreased, likely due to competitive adsorption and interactions with active oxygen species. These preliminary findings underscore the potential of mixed metal oxides for emission control in residential stoves, setting the stage for further optimization and application.

Název v anglickém jazyce

Co and Cu-Based Mixed Metal Oxides Foster Reduction of CO and Hydrocarbons Emissions from Small Combustion Devices

Popis výsledku anglicky

Residential stoves, commonly used for heating, are a significant source of emissions due to the harmful substances produced during biomass combustion, yet they remain largely unregulated. The use of catalytic systems presents a promising approach for mitigating these emissions. This study investigates the potential of Cu-Mg-Mn-Al and Co-Mg-Mn-Al mixed metal oxides, synthesized from hydrotalcite precursors via coprecipitation and calcination, for reducing emissions of CO, C3H8, and CH4. The physicochemical properties of the catalysts were thoroughly characterized using techniques such as AAS, XPS, XRD, H-2-TPR, CO2-TPD, and NH3-TPD. Catalytic performance was evaluated over a temperature range of 100-500 degrees C in both two-component (CO + C3H8 or CO + CH4) and three-component (CO + C3H8 + CH4) gas mixtures with oxygen. Results revealed that Co-based catalysts outperformed Cu-based ones in catalytic activity. However, in the three-component mixture, catalytic activity decreased, likely due to competitive adsorption and interactions with active oxygen species. These preliminary findings underscore the potential of mixed metal oxides for emission control in residential stoves, setting the stage for further optimization and application.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/TN02000025" target="_blank" >TN02000025: Národní centrum pro energetiku II</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ChemCatChem

ISSN

1867-3880

e-ISSN

1867-3899

Svazek periodika

17

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

e202500092

Kód UT WoS článku

001459807400018

EID výsledku v databázi Scopus

2-s2.0-105001855858