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

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Fältnamn	Indikatorer	Metadata
000		04070naa a2200541 4500
001		oai:research.chalmers.se:c24637ac-e93a-4084-b5ea-45bfa5d09973
003		SwePub
008		190317s2019 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://research.chalmers.se/publication/5092182 URI
024	7	a https://doi.org/10.3390/catal90201372 DOI
040		a (SwePub)cth
041		a engb eng
042		9 SwePub
072	7	a art2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a Kanerva, Tomiu Tampereen Yliopisto,University of Tampere4 aut
245	1 0	a Microstructural characteristics of vehicle-aged heavy-duty diesel oxidation catalyst and natural gas three-way catalyst
264		c 2019-02-01
264	1	b MDPI AG,c 2019
338		a electronic2 rdacarrier
520		a 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.
650	7	a TEKNIK OCH TEKNOLOGIERx Kemiteknikx Kemiska processer0 (SwePub)204012 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Chemical Engineeringx Chemical Process Engineering0 (SwePub)204012 hsv//eng
650	7	a TEKNIK OCH TEKNOLOGIERx Kemiteknikx Annan kemiteknik0 (SwePub)204992 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Chemical Engineeringx Other Chemical Engineering0 (SwePub)204992 hsv//eng
650	7	a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe
650	7	a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng
653		a Poisoning
653		a TEM
653		a Natural gas
653		a SEM
653		a Catalyst deactivation
653		a Diesel
700	1	a Honkanen, M.u Tampereen Yliopisto,University of Tampere4 aut
700	1	a Kolli, T.u Oulun Yliopisto,University of Oulu4 aut
700	1	a Heikkinen, O.u Aalto-Yliopisto,Aalto University4 aut
700	1	a Kallinen, Kauko4 aut
700	1	a Saarinen, Tuomou SSAB AB,Sandvik Group AB4 aut
700	1	a Lahtinen, J.u Aalto-Yliopisto,Aalto University4 aut
700	1	a Olsson, Eva,d 1960u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)f10eva
700	1	a Keiski, Riitta L.u Oulun Yliopisto,University of Oulu4 aut
700	1	a Vippola, M.u Tampereen Yliopisto,University of Tampere4 aut
710	2	a Tampereen Yliopistob Oulun Yliopisto4 org
773	0	t Catalystsd : MDPI AGg 9:2q 9:2x 2073-4344
856	4	u https://research.chalmers.se/publication/509218/file/509218_Fulltext.pdfx primaryx freey FULLTEXT
856	4	u https://www.mdpi.com/2073-4344/9/2/137/pdf
856	4 8	u https://research.chalmers.se/publication/509218
856	4 8	u https://doi.org/10.3390/catal9020137

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Av författaren/redakt...: Kanerva, Tomi; Honkanen, M.; Kolli, T.; Heikkinen, O.; Kallinen, Kauko; Saarinen, Tuomo; visa fler...; Lahtinen, J.; Olsson, Eva, 196 ...; Keiski, Riitta L ...; Vippola, M.; visa färre...

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