Herein, we reported the utilization of pre-formed Au–Pt nanoparticles deposited on phosphorus functionalized carbons as effective catalysts for the oxidation of 5-hydroxymethylfurfural (HMF) to furandicarboxylic acid (FDCA). Au–Pt nanoparticles have been prepared by a two-step methodology using polyvinyl alcohol (PVA) as protective agent and a combination of NaBH4 and H2 as reducing agents. Three carbon nanofibers (CNFs) with different graphitization degrees have been functionalized through treatment with an H3PO4–HNO3 mixture at 150 °C, in order to incorporate P groups on carbon surface. Surface and structural properties of the synthesized functionalized materials have been investigated by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. The structural and surface properties of carbon nanofibers determine the amount of P-functionalities, which is a key parameter affecting the catalytic performances of Au–Pt. Indeed, the highest activity and stability has been achieved for Au–Pt deposited on the sample, which showed the largest amount of P-groups on the surface.
Catalytic Performances of Au–Pt Nanoparticles on Phosphorous Functionalized Carbon Nanofibers towards HMF Oxidation / S. Campisi, S. Capelli, D. Motta, F. Trujillo, T. Davies, L. Prati, N. Dimitratos, A. Villa. - In: C. - ISSN 2311-5629. - 4:3(2018 Aug 28), pp. 48.1-48.17.
|Titolo:||Catalytic Performances of Au–Pt Nanoparticles on Phosphorous Functionalized Carbon Nanofibers towards HMF Oxidation|
CAMPISI, SEBASTIANO (Primo) (Corresponding)
VILLA, ALBERTO (Ultimo) (Corresponding)
|Parole Chiave:||carbon materials; nanofibers; functionalization; heteroatoms; HMF oxidation; preformed colloidal Au–Pt nanoparticles|
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
Settore CHIM/04 - Chimica Industriale
|Data di pubblicazione:||28-ago-2018|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3390/c4030048|
|Appare nelle tipologie:||01 - Articolo su periodico|