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Tailoring the 3D Structure of Pd Nanocatalysts Supported on Mesoporous Carbon for Furfural Hydrogenation
Author(s) -
Wang Wu,
Villa Alberto,
Kübel Christian,
Hahn Horst,
Wang Di
Publication year - 2018
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201800308
Subject(s) - furfuryl alcohol , furfural , selectivity , nanomaterial based catalyst , catalysis , mesoporous material , nanoparticle , chemical engineering , materials science , carbon fibers , chemistry , organic chemistry , nanotechnology , composite number , composite material , engineering
By quantitative 3D structural characterization of Pd nanoparticles supported on mesoporous carbon, we identify the most important structural aspects of the catalysts, which are responsible for the activity, selectivity and stability in liquid phase furfural hydrogenation. A systematic series of catalysts were prepared by three synthetic methods: incipient wetness impregnation, wet impregnation and immobilization of preformed PVA stabilized nanoparticles in order to control the Pd nanoparticle distribution on the external and internal surfaces of the mesoporous carbon. The activity and selectivity of these catalysts are highly affected by the particle locations. More Pd nanoparticles located inside pores promote the formation of 2‐methyl furan, while selectivity to furfuryl alcohol and tetrahydrofurfuryl alcohol is suppressed correspondingly. Through recycling tests we find that leaching depends on the synthesis process and plays an important role with respect to catalytic stability.