Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic Catalysts
The hydrogenation of muconic acid (MA) to bio-adipic acid (AdA) is one of the green chemical processes that has attracted the most interest in recent years. Indeed, MA can be readily obtained from biomass through fermentative processes. Here, we aimed to investigate the synergic effect of electronic...
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MDPI AG
2023-02-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/13/3/486 |
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| author | Elisa Zanella Lorenzo Secundo Silvio Bellomi Alessandro Vomeri Alberto Villa Carlo Pirola |
| author_facet | Elisa Zanella Lorenzo Secundo Silvio Bellomi Alessandro Vomeri Alberto Villa Carlo Pirola |
| author_sort | Elisa Zanella |
| collection | DOAJ |
| description | The hydrogenation of muconic acid (MA) to bio-adipic acid (AdA) is one of the green chemical processes that has attracted the most interest in recent years. Indeed, MA can be readily obtained from biomass through fermentative processes. Here, we aimed to investigate the synergic effect of electronic promotion that the addition of a second metal, even in small quantities, can have on Pd-based catalyst, known for its low stability. Ni and Zn were taken into consideration and two different catalysts (1%Pd<sub>8</sub>Ni<sub>2</sub>/HHT and 1%Pd<sub>8</sub>Zn<sub>2</sub>/HHT) were synthetized by sol immobilization method and supported on high-temperature, heat-treated carbon nanofibers (HHT-CNFs) that are known to enhance the stability of palladium. The catalysts were tested in MA hydrogenation and thoroughly characterized by TEM, ICP, and XPS analysis to unveil the effect of the second metal. To solve the solubility issue and have a starting material as similar as feasible to the post-fermentation conditions of the biomass, sodium muconate salt was chosen as a substrate for the reaction. All of the synthetized bimetallic catalysts showed a higher activity than monometallic Pd and better stability during the recycling tests, pointing out that even a small amount of these two metals can increase the catalytic properties of monometallic Pd. |
| first_indexed | 2024-03-11T06:48:23Z |
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| id | doaj.art-2a9d03273b6342fb8f4f9a556e58e086 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-11T06:48:23Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-2a9d03273b6342fb8f4f9a556e58e0862023-11-17T10:10:06ZengMDPI AGCatalysts2073-43442023-02-0113348610.3390/catal13030486Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic CatalystsElisa Zanella0Lorenzo Secundo1Silvio Bellomi2Alessandro Vomeri3Alberto Villa4Carlo Pirola5Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milan, ItalyDipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milan, ItalyDipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milan, ItalyDipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milan, ItalyDipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milan, ItalyDipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milan, ItalyThe hydrogenation of muconic acid (MA) to bio-adipic acid (AdA) is one of the green chemical processes that has attracted the most interest in recent years. Indeed, MA can be readily obtained from biomass through fermentative processes. Here, we aimed to investigate the synergic effect of electronic promotion that the addition of a second metal, even in small quantities, can have on Pd-based catalyst, known for its low stability. Ni and Zn were taken into consideration and two different catalysts (1%Pd<sub>8</sub>Ni<sub>2</sub>/HHT and 1%Pd<sub>8</sub>Zn<sub>2</sub>/HHT) were synthetized by sol immobilization method and supported on high-temperature, heat-treated carbon nanofibers (HHT-CNFs) that are known to enhance the stability of palladium. The catalysts were tested in MA hydrogenation and thoroughly characterized by TEM, ICP, and XPS analysis to unveil the effect of the second metal. To solve the solubility issue and have a starting material as similar as feasible to the post-fermentation conditions of the biomass, sodium muconate salt was chosen as a substrate for the reaction. All of the synthetized bimetallic catalysts showed a higher activity than monometallic Pd and better stability during the recycling tests, pointing out that even a small amount of these two metals can increase the catalytic properties of monometallic Pd.https://www.mdpi.com/2073-4344/13/3/486adipic acidmuconic acidbimetallic catalystspalladiumzincnickel |
| spellingShingle | Elisa Zanella Lorenzo Secundo Silvio Bellomi Alessandro Vomeri Alberto Villa Carlo Pirola Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic Catalysts Catalysts adipic acid muconic acid bimetallic catalysts palladium zinc nickel |
| title | Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic Catalysts |
| title_full | Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic Catalysts |
| title_fullStr | Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic Catalysts |
| title_full_unstemmed | Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic Catalysts |
| title_short | Bio-Adipic Acid Production from Muconic Acid Hydrogenation on Palladium-Transition Metal (Ni and Zn) Bimetallic Catalysts |
| title_sort | bio adipic acid production from muconic acid hydrogenation on palladium transition metal ni and zn bimetallic catalysts |
| topic | adipic acid muconic acid bimetallic catalysts palladium zinc nickel |
| url | https://www.mdpi.com/2073-4344/13/3/486 |
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