title: AuRu/AC as an effective catalyst for hydrogenation reactions.
abstract: AuRu bimetallic catalysts have been prepared by sequential deposition of Au on Ru or vice versa obtaining different nanostructures: when Ru has been deposited on Au, a Au(core)-Ru(shell) has been observed, whereas the deposition of Au on Ru leads to a bimetallic phase with Ru enrichment on the surface. In the latter case, the unexpected Ru enrichment could be attributed to the weak adhesion of Ru on the carbon support, thus allowing Ru particles to diffuse on Au particles. Both structures result very active in catalysing the liquid phase hydrogenolysis of glycerol and levulinic acid but the activity, the selectivity and the stability depend on the structure of the bimetallic nanoparticles. Ru@Au/AC core-shell structure mostly behaved as the monometallic Ru, whereas the presence of bimetallic AuRu phase in Au@Ru/AC provides a great beneficial effect on both activity and stability.
authors: Dipartimento di Chimica, Università degli Studi di Milano, via Golgi 19, 20133 Milano, Italy. Laura.Prati@unimi.it.
authors: Alberto
authors: A
authors: Villa
authors: Carine E
authors: CE
authors: Chan-Thaw
authors: Sebastiano
authors: S
authors: Campisi
authors: Claudia L
authors: CL
authors: Bianchi
authors: Di
authors: D
authors: Wang
authors: Paul G
authors: PG
authors: Kotula
authors: Christian
authors: C
authors: Kübel
authors: Laura
authors: L
authors: Prati
mesh_terms: D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D006865:Hydrogenation
chemical_list: D006046:Gold