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.

Tailoring the 3D Structure of Pd Nanocatalysts Supported on Mesoporous Carbon for Furfural Hydrogenation / W. Wang, A. Villa, C. Kübel, H. Hahn, D. Wang. - In: CHEMNANOMAT. - ISSN 2199-692X. - 4:11(2018 Nov), pp. 1125-1132. [10.1002/cnma.201800308]

Tailoring the 3D Structure of Pd Nanocatalysts Supported on Mesoporous Carbon for Furfural Hydrogenation

Villa, Alberto;
2018-11

Abstract

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.
electron tomography; furfural hydrogenation; mesoporous carbon; palladium nanocatalyst; quantitative 3D structure analysis; Biomaterials; Renewable Energy, Sustainability and the Environment; Energy Engineering and Power Technology; Materials Chemistry2506 Metals and Alloys
Settore CHIM/03 - Chimica Generale e Inorganica
Settore CHIM/04 - Chimica Industriale
17-ago-2018
CHEMNANOMAT
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/599680
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