Synthesis and Design of Carbon‐Supported Highly Dispersed Metal Catalysts

García‐Bordejé, Enrique

doi:10.1002/9783527813599.ch4

Heterogeneous Catalysts 2021

DOI: 10.1002/9783527813599.ch4

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Synthesis and Design of Carbon‐Supported Highly Dispersed Metal Catalysts

Enrique García‐Bordejé

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2022

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Ru on N‐doped Carbon for the Selective Hydrogenolysis of Sugars and Sugar Alcohols

et al. 2022

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Glycols are accessible via metal-catalyzed hydrogenolysis of sugar alcohols such as xylitol obtained from hemicellulose. Rubased catalysts are highly active but also catalyze side-reactions such as decarbonylation and deoxygenation. To achieve high selectivity, these reactions need to be suppressed. In our study, we introduce heteroatom doped carbon materials as catalyst supports providing high selectivity. Heteroatom doping with nitrogen and oxygen was achieved by treating activated carbon with HNO 3 , NH 3 and H 2 or carbonization of organic precursors.For all N-doped materials a high glycol selectivity of �80 % for sorbitol and xylitol and 44 % for xylose and glucose was reached. XPS analysis confirms the presence of different nitrogen species at the carbon surface and varying ligand effects for oxygen and nitrogen. Oxygen has an electron withdrawing effect on ruthenium and leads to a decreased activity. Nitrogen has weaker electron withdrawing properties, resulting in an enhanced selectivity.

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Ru on N‐doped Carbon for the Selective Hydrogenolysis of Sugars and Sugar Alcohols

et al. 2022

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Synthesis and Design of Carbon‐Supported Highly Dispersed Metal Catalysts

Cited by 1 publication

References 50 publications

Ru on N‐doped Carbon for the Selective Hydrogenolysis of Sugars and Sugar Alcohols

Ru on N‐doped Carbon for the Selective Hydrogenolysis of Sugars and Sugar Alcohols

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