Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic Processes
In this contribution, we present an industrial example on how tailored operando spectroscopic methodologies provide the insights needed for the development of new catalytic technologies and support their global utilization. We describe the use of operando spectroscopic methods to investigate how the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/11/2/200 |
| _version_ | 1797415886981693440 |
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| author | Claire Chunjuan Zhang Shiang Sung Sage Hartlaub Ivan Petrovic Bilge Yilmaz |
| author_facet | Claire Chunjuan Zhang Shiang Sung Sage Hartlaub Ivan Petrovic Bilge Yilmaz |
| author_sort | Claire Chunjuan Zhang |
| collection | DOAJ |
| description | In this contribution, we present an industrial example on how tailored operando spectroscopic methodologies provide the insights needed for the development of new catalytic technologies and support their global utilization. We describe the use of operando spectroscopic methods to investigate how the CO oxidation performance of catalysts is impacted by NO<sub>x</sub>, H<sub>2</sub>, temperature, and moisture, as well as the catalyst support. This operando spectroscopic analysis provides mechanistic insights into the current diesel oxidation catalyst (DOC) system and shines light on the material and process development efforts on future DOC catalysts for low-temperature emission control to meet the new regulations. This investigation has shown that at cold-start temperatures, the nitrate growth can occupy the precious metal–alumina support interfacial sites that are critical for O<sub>2</sub> dissociation and/or oxygen transfer and hinder CO conversion. Introduction of hydrogen on the catalyst surface can inhibit the nitrate growth, which in turn keeps these critical interfacial sites open. |
| first_indexed | 2024-03-09T05:55:56Z |
| format | Article |
| id | doaj.art-10abd187e6524d8a985ba1c48704acd6 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T05:55:56Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-10abd187e6524d8a985ba1c48704acd62023-12-03T12:13:05ZengMDPI AGCatalysts2073-43442021-02-0111220010.3390/catal11020200Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic ProcessesClaire Chunjuan Zhang0Shiang Sung1Sage Hartlaub2Ivan Petrovic3Bilge Yilmaz4BASF Corporation, 25 Middlesex-Essex Tpk, Iselin, NJ 08830, USABASF Corporation, 25 Middlesex-Essex Tpk, Iselin, NJ 08830, USABASF Corporation, 25 Middlesex-Essex Tpk, Iselin, NJ 08830, USABASF Corporation, 25 Middlesex-Essex Tpk, Iselin, NJ 08830, USABASF Corporation, 25 Middlesex-Essex Tpk, Iselin, NJ 08830, USAIn this contribution, we present an industrial example on how tailored operando spectroscopic methodologies provide the insights needed for the development of new catalytic technologies and support their global utilization. We describe the use of operando spectroscopic methods to investigate how the CO oxidation performance of catalysts is impacted by NO<sub>x</sub>, H<sub>2</sub>, temperature, and moisture, as well as the catalyst support. This operando spectroscopic analysis provides mechanistic insights into the current diesel oxidation catalyst (DOC) system and shines light on the material and process development efforts on future DOC catalysts for low-temperature emission control to meet the new regulations. This investigation has shown that at cold-start temperatures, the nitrate growth can occupy the precious metal–alumina support interfacial sites that are critical for O<sub>2</sub> dissociation and/or oxygen transfer and hinder CO conversion. Introduction of hydrogen on the catalyst surface can inhibit the nitrate growth, which in turn keeps these critical interfacial sites open.https://www.mdpi.com/2073-4344/11/2/200operando spectroscopyheterogeneous catalystsDRIFTSCO oxidationDOC |
| spellingShingle | Claire Chunjuan Zhang Shiang Sung Sage Hartlaub Ivan Petrovic Bilge Yilmaz Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic Processes Catalysts operando spectroscopy heterogeneous catalysts DRIFTS CO oxidation DOC |
| title | Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic Processes |
| title_full | Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic Processes |
| title_fullStr | Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic Processes |
| title_full_unstemmed | Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic Processes |
| title_short | Example on the Use of Operando Spectroscopy for Developing Mechanistic Insights into Industrial Catalysts and Catalytic Processes |
| title_sort | example on the use of operando spectroscopy for developing mechanistic insights into industrial catalysts and catalytic processes |
| topic | operando spectroscopy heterogeneous catalysts DRIFTS CO oxidation DOC |
| url | https://www.mdpi.com/2073-4344/11/2/200 |
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