6533b861fe1ef96bd12c462c

RESEARCH PRODUCT

Keggin heteropolyacid supported on BN and C3N4: Comparison between catalytic and photocatalytic alcohol dehydration

Igor KrivtsovLeonardo PalmisanoElisa I. García-lópezFrancesca Rita PomillaGiuseppe MarcìFarnaz FazlaliFarnaz FazlaliAli Reza MahjoubLeonarda F. Liotta

subject

2-Propanol dehydration Heteropolyacid Keggin Photocatalysis PolyoxometalateMaterials scienceInorganic chemistry02 engineering and technology01 natural sciencesRedoxCatalysisReaction ratePropenechemistry.chemical_compoundPhotocatalysi0103 physical sciences2-Propanol dehydrationGeneral Materials ScienceKegginCarbon nitride010302 applied physicsPolyoxometalateMechanical EngineeringHeteropolyacid021001 nanoscience & nanotechnologyCondensed Matter PhysicsDehydration reactionchemistrySettore CHIM/03 - Chimica Generale E InorganicaMechanics of MaterialsBoron nitridePhotocatalysisSettore CHIM/07 - Fondamenti Chimici Delle Tecnologie0210 nano-technology

description

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.

yearjournalcountryeditionlanguage
2020-06-01
10.1016/j.mssp.2020.104987http://hdl.handle.net/10281/280270