Transition metal nanoparticles protected by amphiphilic block copolymers as tailored catalyst systems

Preparation and Catalytic Properties of Amphiphilic Copolymer-Stabilized Platinum Metals Colloids

“…It was found that many of these polymers would have different stabilizing abilities despite their similarity in structure (22). In recent years, many investigations have been focused on using amphiphilic block copolymers (23,24), diblock copolymers (25), etc., as stabilizers to prepare metal colloids. They are suitable for the preparation of stable metal colloids and also offer a tremendous variability to design and tune tailored catalysts for special needs.…”

Palladium nanoparticles stabilized in block-copolymer micelles for highly selective 2-butyne-1,4-diol partial hydrogenation

“…Tsang et al [19] developed the deposition of Pd nanoparticles over the polyoxyethylene stearyl ether and used these particles for catalytic applications. Mayer and Mark [20] reported both the preparation of noble-metal colloids in the micellar corona of polystyrene-block-poly(ethylene oxide) and polystyrene-block-poly(methacrylic acid) with polystyrene core and their activity in cyclohexene hydrogenation. Seregina et al [21] developed monometallic and bimetallic colloids stabilized in the micellar core of polystyrene-blockpoly-4-vinylpyridine (PS-b-P4VP) in toluene for hydrogenations.…”

Preparation of Hydrophobically Modified Poly(amidoamine) Dendrimer-Encapsulated Gold Nanoparticles in Organic Solvents

“…This strategy comes from a strong interaction between the surfaces of gold nanoparticles and thiol molecules and such thiol-coated gold nanoparticles have been used for self-assembled monolayers. Also, using block copolymer micelles stable noble nanoparticles have been obtained (8)(9)(10) in which the growth of the colloids during synthesis is much slower than the natural exchange processes of surfactant molecules. As a result, the micelle size only indirectly influences the colloid size.…”