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A general synthesis approach for supported bimetallic nanoparticles via surface inorganometallic chemistry

Journal Article · · Science

Here, the synthesis of ultrasmall supported bimetallic nanoparticles (between 1 and 3 nanometers in diameter) with well-defined stoichiometry and intimacy between constituent metals remains a substantial challenge. We synthesized 10 different supported bimetallic nanoparticles via surface inorganometallic chemistry by decomposing and reducing surface-adsorbed heterometallic double complex salts, which are readily obtained upon sequential adsorption of target cations and anions on a silica substrate. For example, adsorption of tetraamminepalladium(II) [Pd(NH3)42+] followed by adsorption of tetrachloroplatinate [PtCl42–] was used to form palladium-platinum (Pd-Pt) nanoparticles. These supported bimetallic nanoparticles show enhanced catalytic performance in acetylene selective hydrogenation, which clearly demonstrates a synergistic effect between constituent metals.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1483180
Journal Information:
Science, Journal Name: Science Journal Issue: 6414 Vol. 362; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

High-throughput, combinatorial synthesis of multimetallic nanoclusters journal March 2020
General Solvothermal Synthesis Method for Complete Solubility Range Bimetallic and High‐Entropy Alloy Nanocatalysts journal September 2019
Ligand‐Sharing‐Mediated Synthesis of Intermetallic FeM Clusters Embedded in Ultrathin γ‐Fe 2 O 3 Nanosheets journal November 2019
Ultrasmall Pd‐Cu‐Pt Trimetallic Twin Icosahedrons Boost the Electrocatalytic Performance of Glycerol Oxidation at the Operating Temperature of Fuel Cells journal January 2020
Microplasmas for Advanced Materials and Devices journal December 2019
Milling Down to Nanometers: A General Process for the Direct Dry Synthesis of Supported Metal Catalysts journal July 2019
Milling Down to Nanometers: A General Process for the Direct Dry Synthesis of Supported Metal Catalysts journal July 2019
A general synthesis approach for amorphous noble metal nanosheets journal October 2019
In situ generation of supported palladium nanoparticles from a Pd/Sn/S chalcogel and applications in 4-nitrophenol reduction and Suzuki coupling journal January 2019
Ligand-protected atomically precise gold nanoclusters as model catalysts for oxidation reactions journal January 2020
Synergetic effects of strain engineering and substrate defects on generating highly efficient single-atom catalysts for CO oxidation journal January 2019
Confining ultrasmall bimetallic alloys in porous N–carbon for use as scalable and sustainable electrocatalysts for rechargeable Zn–air batteries journal January 2019
Photon-induced synthesis of ultrafine metal nanoparticles on graphene as electrocatalysts: impact of functionalization and doping journal January 2020

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