Catalytic Performances of Au-Pt Nanoparticles on Phosphorous Functionalized Carbon Nanofibers towards HMF Oxidation

被引：12

作者：

Campisi, Sebastiano ^{[1
]}

Capelli, Sofia ^{[1
]}

Motta, Davide ^{[2
]}

Trujillo, Felipe J. Sanchez ^{[2
]}

Davies, Thomas E. ^{[2
]}

Prati, Laura ^{[1
]}

Dimitratos, Nikolaos ^{[2
]}

Villa, Alberto ^{[1
]}

机构：

[1] Univ Milan, Dipartimento Chim, Via Golgi 19, I-20133 Milan, Italy

[2] Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, Main Bldg,Pk Pl, Cardiff CF10 3AT, S Glam, Wales

来源：

C-JOURNAL OF CARBON RESEARCH | 2018年 / 4卷 / 03期

关键词：

carbon materials; nanofibers; functionalization; heteroatoms; HMF oxidation; preformed colloidal Au-Pt nanoparticles;

D O I：

10.3390/c4030048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 H-2 as reducing agents. Three carbon nanofibers (CNFs) with different graphitization degrees have been functionalized through treatment with an H3PO4-HNO3 mixture at 150 degrees 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.

引用

页数：17