Keggin heteropolyacid supported on BN and C3N4: Comparison between catalytic and photocatalytic alcohol dehydration
| Autor: | Igor Krivtsov, Leonardo Palmisano, Elisa I. García-López, Francesca Rita Pomilla, Giuseppe Marcì, Farnaz Fazlali, Ali Reza Mahjoub, Leonarda F. Liotta |
|---|---|
| Přispěvatelé: | Pomilla, F, Fazlali, F, Garcia-Lopez, E, Marci, G, Mahjoub, A, Kritsov, I, Liotta, L, Palmisano, L, Pomilla F.R., Fazlali F., Garcia Lopez E.I., Marci G., Mahjoub A.R., Kritsov I., Liotta L.F., Palmisano L. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
2-Propanol dehydration
Heteropolyacid Keggin Photocatalysis Polyoxometalate Materials science Inorganic chemistry 02 engineering and technology 01 natural sciences Redox Catalysis Reaction rate Propene chemistry.chemical_compound Photocatalysi 0103 physical sciences 2-Propanol dehydration General Materials Science Keggin Carbon nitride 010302 applied physics Polyoxometalate Mechanical Engineering Heteropolyacid 021001 nanoscience & nanotechnology Condensed Matter Physics Dehydration reaction chemistry Settore CHIM/03 - Chimica Generale E Inorganica Mechanics of Materials Boron nitride Photocatalysis Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie 0210 nano-technology |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | The Keggin heteropolyacid (HPA), H3PW12O40 (PW12) has been supported on commercial boron nitride (BN) and two types of home prepared carbon nitride (C3N4). The supported PW12 was used in the gas-solid (photo)catalytic 2-propanol dehydration reaction to give propene at atmospheric pressure and temperatures in the range 70–120 °C and resulted more active than the pristine PW12. Reaction rate increased by increasing the temperature. Noticeably, the propene formation rate was higher by irradiating the catalytic system. The PW12/BN material resulted more active than PW12/C3N4. The acidity of the HPA cluster accounts for the catalytic role, whereas both the acidity and the redox properties of the HPA species were responsible for the increase of the reaction rate in the photo-assisted catalytic reaction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|