Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst

Research output: Contribution to journalArticleScientificpeer-review

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Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst. / Kanerva, Tomi; Honkanen, Mari; Kolli, Tanja; Heikkinen, Olli; Kallinen, Kauko; Saarinen, Tuomo; Lahtinen, Jouko; Olsson, Eva; Keiski, Riitta L.; Vippola, Minnamari.

In: CATALYSTS, Vol. 9, No. 2, 137, 01.02.2019, p. 1-15.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Kanerva, T, Honkanen, M, Kolli, T, Heikkinen, O, Kallinen, K, Saarinen, T, Lahtinen, J, Olsson, E, Keiski, RL & Vippola, M 2019, 'Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst' CATALYSTS, vol. 9, no. 2, 137, pp. 1-15. https://doi.org/10.3390/catal9020137

APA

Kanerva, T., Honkanen, M., Kolli, T., Heikkinen, O., Kallinen, K., Saarinen, T., ... Vippola, M. (2019). Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst. CATALYSTS, 9(2), 1-15. [137]. https://doi.org/10.3390/catal9020137

Vancouver

Author

Kanerva, Tomi ; Honkanen, Mari ; Kolli, Tanja ; Heikkinen, Olli ; Kallinen, Kauko ; Saarinen, Tuomo ; Lahtinen, Jouko ; Olsson, Eva ; Keiski, Riitta L. ; Vippola, Minnamari. / Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst. In: CATALYSTS. 2019 ; Vol. 9, No. 2. pp. 1-15.

Bibtex - Download

@article{4667311a05424b87845a6c51478122b7,
title = "Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst",
abstract = "Techniques to control vehicle engine emissions have been under increasing need for development during the last few years in the more and more strictly regulated society. In this study, vehicle-aged heavy-duty catalysts from diesel and natural gas engines were analyzed using a cross-sectional electron microscopy method with both a scanning electron microscope and a transmission electron microscope. Also, additional supporting characterization methods including X-ray diffractometry, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy and catalytic performance analyses were used to reveal the ageing effects. Structural and elemental investigations were performed on these samples, and the effect of real-life ageing of the catalyst was studied in comparison with fresh catalyst samples. In the real-life use of two different catalysts, the poison penetration varied greatly depending on the engine and fuel at hand: the diesel oxidation catalyst appeared to suffer more thorough changes than the natural gas catalyst, which was affected only in the inlet part of the catalyst. The most common poison, sulphur, in the diesel oxidation catalyst was connected to cerium-rich areas. On the other hand, the severities of the ageing effects were more pronounced in the natural gas catalyst, with heavy structural changes in the washcoat and high concentrations of poisons, mainly zinc, phosphorus and silicon, on the surface of the inlet part.",
keywords = "Catalyst deactivation, Diesel, Natural gas, Poisoning, SEM, TEM",
author = "Tomi Kanerva and Mari Honkanen and Tanja Kolli and Olli Heikkinen and Kauko Kallinen and Tuomo Saarinen and Jouko Lahtinen and Eva Olsson and Keiski, {Riitta L.} and Minnamari Vippola",
year = "2019",
month = "2",
day = "1",
doi = "10.3390/catal9020137",
language = "English",
volume = "9",
pages = "1--15",
journal = "CATALYSTS",
issn = "2073-4344",
publisher = "MDPI AG",
number = "2",

}

RIS - Download

TY - JOUR

T1 - Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst

AU - Kanerva, Tomi

AU - Honkanen, Mari

AU - Kolli, Tanja

AU - Heikkinen, Olli

AU - Kallinen, Kauko

AU - Saarinen, Tuomo

AU - Lahtinen, Jouko

AU - Olsson, Eva

AU - Keiski, Riitta L.

AU - Vippola, Minnamari

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Techniques to control vehicle engine emissions have been under increasing need for development during the last few years in the more and more strictly regulated society. In this study, vehicle-aged heavy-duty catalysts from diesel and natural gas engines were analyzed using a cross-sectional electron microscopy method with both a scanning electron microscope and a transmission electron microscope. Also, additional supporting characterization methods including X-ray diffractometry, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy and catalytic performance analyses were used to reveal the ageing effects. Structural and elemental investigations were performed on these samples, and the effect of real-life ageing of the catalyst was studied in comparison with fresh catalyst samples. In the real-life use of two different catalysts, the poison penetration varied greatly depending on the engine and fuel at hand: the diesel oxidation catalyst appeared to suffer more thorough changes than the natural gas catalyst, which was affected only in the inlet part of the catalyst. The most common poison, sulphur, in the diesel oxidation catalyst was connected to cerium-rich areas. On the other hand, the severities of the ageing effects were more pronounced in the natural gas catalyst, with heavy structural changes in the washcoat and high concentrations of poisons, mainly zinc, phosphorus and silicon, on the surface of the inlet part.

AB - Techniques to control vehicle engine emissions have been under increasing need for development during the last few years in the more and more strictly regulated society. In this study, vehicle-aged heavy-duty catalysts from diesel and natural gas engines were analyzed using a cross-sectional electron microscopy method with both a scanning electron microscope and a transmission electron microscope. Also, additional supporting characterization methods including X-ray diffractometry, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy and catalytic performance analyses were used to reveal the ageing effects. Structural and elemental investigations were performed on these samples, and the effect of real-life ageing of the catalyst was studied in comparison with fresh catalyst samples. In the real-life use of two different catalysts, the poison penetration varied greatly depending on the engine and fuel at hand: the diesel oxidation catalyst appeared to suffer more thorough changes than the natural gas catalyst, which was affected only in the inlet part of the catalyst. The most common poison, sulphur, in the diesel oxidation catalyst was connected to cerium-rich areas. On the other hand, the severities of the ageing effects were more pronounced in the natural gas catalyst, with heavy structural changes in the washcoat and high concentrations of poisons, mainly zinc, phosphorus and silicon, on the surface of the inlet part.

KW - Catalyst deactivation

KW - Diesel

KW - Natural gas

KW - Poisoning

KW - SEM

KW - TEM

UR - http://www.scopus.com/inward/record.url?scp=85062536331&partnerID=8YFLogxK

U2 - 10.3390/catal9020137

DO - 10.3390/catal9020137

M3 - Article

VL - 9

SP - 1

EP - 15

JO - CATALYSTS

JF - CATALYSTS

SN - 2073-4344

IS - 2

M1 - 137

ER -

ID: 32623694