An investigation of the role of surface nitrate species in the oxidation of propene on a Pt-based diesel oxidation catalyst

Sarayute Chansai; Robbie Burch; Christopher Hardacre; Harry Oh; William S. Epling; Sarayute Chansai

doi:10.1039/c3cy00349c

An investigation of the role of surface nitrate species in the oxidation of propene on a Pt-based diesel oxidation catalyst

Sarayute Chansai, Robbie Burch, Christopher Hardacre, Harry Oh, William S. Epling, Sarayute Chansai

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Abstract

Enhancing the low temperature activity of diesel oxidation catalysts is important for cold-start conditions and the possible importance of nitrate species in oxidation reactions has been proposed although definitive evidence has not been reported. To investigate the possible role of surface nitrates, their adsorption and reactivity on a Pt-based diesel oxidation catalyst have been investigated using the Short Time on Stream (STOS) transient kinetic technique. The results provide for the first time definitive evidence for the oxidation of propene by some of these nitrate-type species.

Original language	English
Pages (from-to)	2349-2356
Number of pages	8
Journal	Catalysis Science & Technology
Volume	3
Issue number	9
Early online date	21 Jun 2013
DOIs	https://doi.org/10.1039/c3cy00349c
Publication status	Published - 01 Sept 2013

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10.1039/c3cy00349c

An investigation of the role of surface nitrate species
This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
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abstract = "Enhancing the low temperature activity of diesel oxidation catalysts is important for cold-start conditions and the possible importance of nitrate species in oxidation reactions has been proposed although definitive evidence has not been reported. To investigate the possible role of surface nitrates, their adsorption and reactivity on a Pt-based diesel oxidation catalyst have been investigated using the Short Time on Stream (STOS) transient kinetic technique. The results provide for the first time definitive evidence for the oxidation of propene by some of these nitrate-type species.",

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AU - Burch, Robbie

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AU - Oh, Harry

AU - Epling, William S.

AU - Chansai, Sarayute

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N2 - Enhancing the low temperature activity of diesel oxidation catalysts is important for cold-start conditions and the possible importance of nitrate species in oxidation reactions has been proposed although definitive evidence has not been reported. To investigate the possible role of surface nitrates, their adsorption and reactivity on a Pt-based diesel oxidation catalyst have been investigated using the Short Time on Stream (STOS) transient kinetic technique. The results provide for the first time definitive evidence for the oxidation of propene by some of these nitrate-type species.

AB - Enhancing the low temperature activity of diesel oxidation catalysts is important for cold-start conditions and the possible importance of nitrate species in oxidation reactions has been proposed although definitive evidence has not been reported. To investigate the possible role of surface nitrates, their adsorption and reactivity on a Pt-based diesel oxidation catalyst have been investigated using the Short Time on Stream (STOS) transient kinetic technique. The results provide for the first time definitive evidence for the oxidation of propene by some of these nitrate-type species.

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An investigation of the role of surface nitrate species in the oxidation of propene on a Pt-based diesel oxidation catalyst

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