Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel Engines

Abstract Porous geopolymer materials can be used in various fields such as thermal insulation, filtration, catalyst, and building materials. In this study, open porous geopolymer‐based cordierite materials are produced due to the porous structure, temperature resistance, and easy and low‐cost applic...

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Main Authors: Yavuz Ergun, Hakan Caliskan, Halil Ibrahim Karali
Format: Article
Language:English
Published: Wiley 2025-07-01
Series:Global Challenges
Subjects:
Online Access:https://doi.org/10.1002/gch2.202500048
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author Yavuz Ergun
Hakan Caliskan
Halil Ibrahim Karali
author_facet Yavuz Ergun
Hakan Caliskan
Halil Ibrahim Karali
author_sort Yavuz Ergun
collection DOAJ
description Abstract Porous geopolymer materials can be used in various fields such as thermal insulation, filtration, catalyst, and building materials. In this study, open porous geopolymer‐based cordierite materials are produced due to the porous structure, temperature resistance, and easy and low‐cost applications of geopolymer structures, which are oxide ceramic materials that can act as natural catalysts for emission treatment of diesel engines. For the composition of cordierite, waste boron clay, metakaolin, fly ash, and magnesium carbonate are used, while keeping the geopolymerization temperature constant, sodium silicate, sodium hydroxide, polypropylene, and glass fiber, hydrogen peroxide are used to create an alkaline environment. These materials are tested in a 4‐stroke 4‐cylinder diesel engine's exhaust system at 50, 75, and 100 Nm engine torques and 1500, 1700, and 1900 rpm engine speeds. The use of open‐cell geopolymer materials reduces CO emissions by 66%, NOx emissions by 25% and HC emissions by 68%. The open‐cell geopolymer materials are found to be effective in treating over 95% of particulate matter. The chemical and microstructures of the obtained open‐cell geopolymer structures are investigated. It is concluded that the developed products are useful tools for the emission treatments of diesel engines considering the oxidizing and filtering effects of the materials.
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spelling doaj-art-0e8b01a102cf4e17948b344fc7662e862025-08-20T03:50:21ZengWileyGlobal Challenges2056-66462025-07-0197n/an/a10.1002/gch2.202500048Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel EnginesYavuz Ergun0Hakan Caliskan1Halil Ibrahim Karali2Department of Chemical Engineering Faculty of Engineering and Natural Sciences Usak University Usak 64200 TürkiyeDepartment of Mechanical Engineering Faculty of Engineering and Natural Sciences Usak University Usak 64200 TürkiyeDepartment of Motor Vehicles and Transportation Technologies Vocational High School of Technical Sciences Usak University Usak 64200 TürkiyeAbstract Porous geopolymer materials can be used in various fields such as thermal insulation, filtration, catalyst, and building materials. In this study, open porous geopolymer‐based cordierite materials are produced due to the porous structure, temperature resistance, and easy and low‐cost applications of geopolymer structures, which are oxide ceramic materials that can act as natural catalysts for emission treatment of diesel engines. For the composition of cordierite, waste boron clay, metakaolin, fly ash, and magnesium carbonate are used, while keeping the geopolymerization temperature constant, sodium silicate, sodium hydroxide, polypropylene, and glass fiber, hydrogen peroxide are used to create an alkaline environment. These materials are tested in a 4‐stroke 4‐cylinder diesel engine's exhaust system at 50, 75, and 100 Nm engine torques and 1500, 1700, and 1900 rpm engine speeds. The use of open‐cell geopolymer materials reduces CO emissions by 66%, NOx emissions by 25% and HC emissions by 68%. The open‐cell geopolymer materials are found to be effective in treating over 95% of particulate matter. The chemical and microstructures of the obtained open‐cell geopolymer structures are investigated. It is concluded that the developed products are useful tools for the emission treatments of diesel engines considering the oxidizing and filtering effects of the materials.https://doi.org/10.1002/gch2.202500048after treatmentcordieriteexhaust filtergeopolymer filterwaste recovery
spellingShingle Yavuz Ergun
Hakan Caliskan
Halil Ibrahim Karali
Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel Engines
Global Challenges
after treatment
cordierite
exhaust filter
geopolymer filter
waste recovery
title Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel Engines
title_full Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel Engines
title_fullStr Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel Engines
title_full_unstemmed Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel Engines
title_short Production and Characterization of Open Cell Cordierite from Boron and Waste Materials by Geopolymer Method for the Emission After Treatment System of Diesel Engines
title_sort production and characterization of open cell cordierite from boron and waste materials by geopolymer method for the emission after treatment system of diesel engines
topic after treatment
cordierite
exhaust filter
geopolymer filter
waste recovery
url https://doi.org/10.1002/gch2.202500048
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AT hakancaliskan productionandcharacterizationofopencellcordieritefromboronandwastematerialsbygeopolymermethodfortheemissionaftertreatmentsystemofdieselengines
AT halilibrahimkarali productionandcharacterizationofopencellcordieritefromboronandwastematerialsbygeopolymermethodfortheemissionaftertreatmentsystemofdieselengines