One-Pot Synthesis of Size- and Composition-Controlled Ni-Rich NiPt Alloy Nanoparticles in a Reverse Microemulsion System and Their Application

Gregory Biausque, Paco Laveille, Dalaver H. Anjum, Bei Zhang, Xixiang Zhang, Valerie Caps, Jean-Marie Basset

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Bimetallic nanoparticles have been the subject of numerous research studies in the nanotechnology field, in particular for catalytic applications. Control of the size, morphology, and composition has become a key challenge due to the relationship between these parameters and the catalytic behavior of the particles in terms of activity, selectivity, and stability. Here, we present a one-pot air synthesis of 2 nm NiPt nanoparticles with a narrow size distribution. Control of the size and composition of the alloy particles is achieved at ambient temperature, in the aqueous phase, by the simultaneous reduction of nickel and platinum precursors with hydrazine, using a reverse microemulsion system. After deposition on an alumina support, this Ni-rich nanoalloy exhibits unprecedented stability under the harsh conditions of methane dry reforming.
Original languageEnglish (US)
Pages (from-to)30643-30653
Number of pages11
JournalACS Applied Materials & Interfaces
Volume9
Issue number36
DOIs
StatePublished - Aug 29 2017

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