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Pd–Au Bimetallic Catalysts for the Hydrogenation of Muconic Acid to Bio-Adipic Acid

Capelli, Sofia; Barlocco, Ilaria; Scesa, Federico Maria; Huang, Xiaohui; Wang, Di ORCID iD icon; Tessore, Francesca; Villa, Alberto; Di Michele, Alessandro; Pirola, Carlo


The hydrogenation reaction of muconic acid, produced from biomass using fermentative processes, to bio-adipic acid is one of the most appealing green emerging chemical process. This reaction can be promoted by catalysts based on a metal belonging to the platinum group, and the use of a second metal can preserve and increase their activity. Pd–Au bimetallic nanoparticle samples supported on high-temperature, heat-treated carbon nanofibers were prepared using the sol immobilization method, changing the Pd–Au molar ratio. These catalysts were characterized by TEM, STEM, and XPS analysis and tested in a batch reactor pressurized with hydrogen, where muconic acid dissolved in water was converted to adipic acid. The synthesized Pd–Au bimetallic catalysts showed higher activity than monometallic Au and Pd material and better stability during the recycling tests. Moreover, the selectivity toward the mono-unsaturated changed by decreasing the Pd/Au molar ratio: the higher the amount of gold, the higher the selectivity toward the intermediates.

Verlagsausgabe §
DOI: 10.5445/IR/1000142548
Veröffentlicht am 28.01.2022
DOI: 10.3390/catal11111313
Zitationen: 4
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2073-4344
KITopen-ID: 1000142548
HGF-Programm 43.35.03 (POF IV, LK 01) Structural and Functional Behavior of Solid State Systems
Erschienen in Catalysts
Verlag MDPI
Band 11
Heft 11
Seiten Art.-Nr. 1313
Bemerkung zur Veröffentlichung This article belongs to the Special Issue Transition Metal Catalysis
Vorab online veröffentlicht am 29.10.2021
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