The synergy between substrate architecture of 3D-printed catalytic converters and hydrogen for low-temperature aftertreatment systems

Kovačev, Nikolina; Doustdar, Omid; Li, Sheng; Tsolakis, Athanasios; Herreros, José Martín; Essa, Khamis

doi:10.1016/j.ces.2023.118490

Cited by 8 publications

(3 citation statements)

References 39 publications

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“…Kovacev et al [26] studied the effect of adding hydrogen on the light-off behavior of new substrate geometries obtained via additive manufacturing and experimentally demonstrated that the addition of hydrogen shifts the light-off curves of CO, total hydrocarbons (THC), and NO to lower temperatures, which leads to an improvement in cold-start emissions.…”

Section: Cold Startmentioning

confidence: 99%

“…Advances in internal geometries for the substrate are being investigated with the aid of additive manufacturing techniques. This is the case of diamond-based lattice substrates obtained through additive manufacturing, which have been compared to a conventional 400 cpsi honeycomb catalyst design, resulting in a significant improvement in the light-off temperatures for the CO, THC, and NO of the 3D-printed substrates [26].…”

Section: Substrate Design and Interaction With The Exhaust Systemmentioning

confidence: 99%

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Recent Advances in the Development of Automotive Catalytic Converters: A Systematic Review

Robles-Lorite,

Dorado-Vicente,

Torres-Jiménez

et al. 2023

Energies

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Despite the current boost in the use of electric vehicles to reduce the automotive sector’s footprint, combustion vehicles are and will be present in our cities in both the immediate and long term. In this sense, catalytic converters, which are exhaust gas post-treatment systems for vehicle emission control, are critical for complying with increasingly stringent environmental regulations. This work proposes a systematic review to identify the most relevant knowledge regarding the parameters (materials, geometries, and engine conditions), conditions (cold start, oxygen storage, and deactivation), and mathematical models to consider in the design of catalytic converters. The Scopus database contains 283 records related to this review’s objective. After applying the inclusion and exclusion criteria, 65 reports were retrieved for evaluation. A table was created to present the results and prepare this manuscript. The evaluation revealed that the following topics were active: the study of non-noble catalyst materials, as well as new substrate materials and geometries, for designing more compact and cost-effective catalytic converters; the development of strategies to improve conversion during cold starts; and the development of accurate and fast estimation models.

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Section: Cold Startmentioning

confidence: 99%

Section: Substrate Design and Interaction With The Exhaust Systemmentioning

confidence: 99%

Recent Advances in the Development of Automotive Catalytic Converters: A Systematic Review

Robles-Lorite,

Dorado-Vicente,

Torres-Jiménez

et al. 2023

Energies

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show abstract

“…Recently, several intriguing experiments have been devoted to the fabrication via AM of ceramic components for special applications in micro-electro-mechanical-system [31] or catalyst-substrate manufacturing [32][33][34]. However, due to the great optical transparency and characteristic ceramic features of transparent ceramics, they are equally suitable for a wide variety of high-performance applications, such as lasers, armours, and lighting.…”

Section: Introductionmentioning

confidence: 99%

DLP of Translucent Alumina: In-Depth Investigation on Slurry Development and Debinding Regimes

et al. 2023

Self Cite

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Exploring the feasibility of producing near-net-shape components with advanced properties and geometrical features via 3D printing has incrementally become the research focus of various studies. Digital light processing (DLP) technology can manufacture complex-structured components for various technical applications. The aims of this research were to investigate Al2O3 ceramic slurry preparation procedures to identify the ideal components to add to an in-house-developed ceramic slurry, to determine the optimal DLP printing parameters and conditions while understanding their effect on the green part properties and to evaluate the appropriate debinding regime to achieve fully dense crack-free fired parts capable of exhibiting translucent behaviours. The slurry obtained from the ball-milled powder at 800 rpm for 1 h, together with 2 wt.% BYK-145 as a dispersant and the highest achievable solid loading of 85 wt.%, showed the desired rheological and photopolymerisation properties. Full-factorial design of experiments (DOE) was employed to study the impact of the printing parameters on the density and the dimensions of the samples. Different debinding regimes were investigated and it was proven that the lowest debinding heat rate (0.2 °C/min) and longer holding times helped to reduce defects and promote densification (>99.0%), providing optimal grounds to obtain translucent fired parts.

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Co₃O₄@SiO₂ 3D Monolith Catalysts, Additive Manufactured Structures for Propane Oxidation Reaction

Daza‐Gómez,

Pérez Salas,

Ruiz‐Huerta

et al. 2024

ChemistrySelect

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In this study, we successfully fabricated a three‐dimensional Co3O4@SiO2 3D Monolith catalyst. This process allowed for the effective and straightforward anchoring of Co3O4 nanoparticles onto SiO2 3D Monoliths. The active Co3O4 phase was primarily identified through XRD and XPS analyses, complemented by Co3O4 loading measurements (1.7 %). This innovative catalyst displayed remarkable proficiency in selectively converting propane to carbon dioxide. Additionally, it was demonstrated that the catalytic activity remained unimpaired even upon the catalyst's reuse in 5 successive reaction cycles. This performance was observed across various heating ramps, showcasing the catalyst's stability over time.

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The synergy between substrate architecture of 3D-printed catalytic converters and hydrogen for low-temperature aftertreatment systems

Cited by 8 publications

References 39 publications

Recent Advances in the Development of Automotive Catalytic Converters: A Systematic Review

Recent Advances in the Development of Automotive Catalytic Converters: A Systematic Review

DLP of Translucent Alumina: In-Depth Investigation on Slurry Development and Debinding Regimes

Co₃O₄@SiO₂ 3D Monolith Catalysts, Additive Manufactured Structures for Propane Oxidation Reaction

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The synergy between substrate architecture of 3D-printed catalytic converters and hydrogen for low-temperature aftertreatment systems

Cited by 8 publications

References 39 publications

Recent Advances in the Development of Automotive Catalytic Converters: A Systematic Review

Recent Advances in the Development of Automotive Catalytic Converters: A Systematic Review

DLP of Translucent Alumina: In-Depth Investigation on Slurry Development and Debinding Regimes

Co3O4@SiO2 3D Monolith Catalysts, Additive Manufactured Structures for Propane Oxidation Reaction

Contact Info

Product

Resources

About

Co₃O₄@SiO₂ 3D Monolith Catalysts, Additive Manufactured Structures for Propane Oxidation Reaction