Ni-Au alloy nanoparticles as a high performance heterogeneous catalyst for hydrogenation of aromatic nitro compounds

• Published in: Journal of alloys and compounds Vol. 792; pp. 286 - 290
• Main Authors: Lang, Leiming, Pan, Zhaorui, Yan, Jun
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 05.07.2019; Elsevier BV
• Subjects: Activated carbon; Aromatic compounds; Aromatic nitro compounds; Catalysis; Catalysts; Catalytic activity; Catalytic converters; Gold; Hydrogenation; Industrial applications; Metals and alloys; Nanoalloys; Nanoparticles; Ni-Au; Nickel base alloys; Nitro compounds; Noble metals; Selectivity; Metals and alloys; Catalysis; Ni-Au; Hydrogenation; Aromatic nitro compounds
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2019.03.323

Selective hydrogenation of nitro compounds requires highly active and less expensive materials as a heterogeneous catalyst. As a good candidate, the Ni-Au alloy nanoparticles (NPs) have been synthesized by simple in-situ reduction method, which was loaded to the active carbon with 10 wt % loading amount. The Ni-Au/C catalyst shows superior catalytic performance for hydrogenation of nitro compounds with 100% conversion and selectivity without any by-products, which also indicates good recycle performance for several times use. The prepared catalyst not only reduces the usage amount of noble metal, but also keeps the high catalytic activity, which is a promising catalyst for industry applications. •The Ni-Au alloy nanoparticles were synthesized by simple in-situ reduction method.•The prepared Ni-Au/C catalyst exhibited excellent catalytic performance for selective hydrogenation of nitro compounds.•The synthetic method of Ni-Au nanoparticles is simple and can be extended to prepare other similar bimetal structure.