ArticleCommunications chemistry2022
Engineering gold-platinum core-shell nanoparticles by self-limitation in solution.
Article in Communications chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Controlled Biocatalytic Synthesis of a Metal Nanoparticle-Enzyme Hybrid: Demonstration for Catalytic HAngewandte Chemie (International ed. in English) · 2024Article
- Strategies to improve hydrogen activation on gold catalysts.Nature reviews. Chemistry · 2024Review
- Role of Transition Metals in Pt Alloy Catalysts for the Oxygen Reduction Reaction.ACS catalysis · 2023Review
- Metal Nanoclusters Synthesized in Alkaline Ethylene Glycol: Mechanism and Application.Nanomaterials (Basel, Switzerland) · 2023Review
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Authors and funding
10 authors.
Funding
Abstract
Core-shell particles with thin noble metal shells represent an attractive material class with potential for various applications ranging from catalysis to biomedical and pharmaceutical applications to optical crystals. The synthesis of well-defined core-shell architectures remains, however, highly challenging. Here, we demonstrate that atomically-thin and homogeneous platinum shells can be grown via a colloidal synthesis method on a variety of gold nanostructures ranging from spherical nanoparticles to nanorods and nanocubes. The synthesis is based on the exchange of low binding citrate ligands on gold, the reduction of platinum and the subsequent kinetically hindered growth by carbon monoxide as strong binding ligand. The prerequisites for homogeneous growth are low core-binding ligands with moderate fast ligand exchange in solution, a mild reducing agent to mitigate homonucleation and a strong affinity of a second ligand system that can bind to the shell's surface. The simplicity of the described synthetic route can potentially be adapted to various other material libraries to obtain atomically smooth core-shell systems.
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Registered trials
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