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Pt Nanoparticles Supported on Nitrogen‐Doped‐Carbon‐Decorated CeO 2 for Base‐Free Aerobic Oxidation of 5‐Hydroxymethylfurfural
Author(s) -
Ke Changxuan,
Li Mengyuan,
Fan Guoli,
Yang Lan,
Li Feng
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201800738
Subject(s) - catalysis , chemical engineering , carbon fibers , base (topology) , nitrogen , metal , chemistry , base metal , nanoparticle , materials science , inorganic chemistry , nanotechnology , organic chemistry , metallurgy , composite material , mathematical analysis , mathematics , welding , composite number , engineering
Currently, the base‐free aerobic oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to produce 2,5‐furandicarboxylic acid (FDCA) is attracting intense interest due to its prospects for the green, sustainable, and promising production of biomass‐based aromatic polymers. Herein, we have developed a new Pt catalyst supported on nitrogen‐doped‐carbon‐decorated CeO 2 (NC‐CeO 2 ) for the aerobic oxidation of HMF in water without the addition of any homogeneous base. It was demonstrated that the small‐sized Pt particles could be well dispersed on the surface of the hybrid NC‐CeO 2 support, and the activity of the supported Pt catalyst depended strongly on the surface structure and properties of the catalysts. The as‐fabricated Pt/NC‐CeO 2 catalyst, with abundant surface defects, enhanced basicity, and favorable electron‐deficient metallic Pt species, enabled an almost 100 % yield of FDCA in water with molecular oxygen (0.4 MPa) at 110 °C for 8 h without the addition of any homogeneous base, which is indicative of exceptional catalytic performance. Furthermore, this Pt/NC‐CeO 2 catalyst also showed good stability and reusability owing to strong metal–support interactions. An understanding of the role of surface structural defects and basicity of the hybrid NC‐CeO 2 support provides a basis for the rational design of high‐performance and stable supported metal catalysts with practical applications in various transformations of biomass‐derived compounds.