Metallopolymer nanocomposites based on platinum nanoparticles for chemical fuel cells

Yashtulov, N. A.; Bolshakova, A. N.; Ревина, А. А.; Флид, В. Р.

doi:10.1007/s11172-011-0235-3

Cited by 9 publications

(7 citation statements)

References 5 publications

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“…Over the past decade, research to incorporate transition metals into polymers has continually expanded. − Metallopolymers have shown properties distinct from their organic (conventional polymer) and inorganic (transition metal) components and have found potential applications in catalysis, , sensors, − lithography, − magnetic materials, − electrochromic materials, − and as ceramic precursors. ,,, Well-defined metallopolymers with controlled molecular weights and narrow polydispersity indices (PDIs) − have allowed for the development of solution and solid-state self-assembly to fabricate complex and unique nanostructures with metallic domains. − Metal containing nanostructures such as micelles, vesicles, platelets, and rods in solution, and lamella, cylinders, spheres, and gyroids in the solid-state − are used to synthesize well-defined metal nanoparticles via thermal decomposition, ,, radiation treatment, or reduction of metal salts. − …”

Section: Introductionmentioning

confidence: 99%

Multifunctional Block Copolymer: Where Polymetallic and Polyelectrolyte Blocks Meet

et al. 2015

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Sequential reversible addition−fragmentation transfer (RAFT) polymerization of a mixed sandwich cobaltocene monomer (η 5 -cyclopentadienyl-cobalt-η 4 -cyclobutadiene (CpCoCb)) and a phosphonium salt functionalized styrene monomer resulted in the first example of a unique multifunctional block copolymer consisting of a metallopolymer block and a polyelectrolyte block. The polyelectrolyte block was decorated with a gold anion (AuCl 4 − ) via salt metathesis, resulting in a heterobimetallic block copolymer with distinct gold and cobalt sections. Solution self-assembly behavior of this unique metallopolymer-b-polyelectrolyte copolymer before and after salt metathesis was studied. Heterobimetallic micelles with a gold containing core and a cobalt-containing corona were obtained, and then the core was reduced to form gold nanoparticles (AuNPs). Studies on the solid-state self-assembly of this unique block copolymer showed that it phase separated into hexagonally packed cylinders. Salt metathesis of the phase-separated block copolymers was utilized as the first example of a nonstandard selective staining method to exclusively stain the polyelectrolyte domains with the AuCl 4 − anion. Staining the metallopolymer domain by RuO 4 provided the complementary pattern. Pyrolysis of the self-assembled block copolymers resulted in magnetic cobalt-phosphate nanoparticles with 17% char yield.

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Section: Introductionmentioning

confidence: 99%

Multifunctional Block Copolymer: Where Polymetallic and Polyelectrolyte Blocks Meet

et al. 2015

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“…The content of the Pt NPs depends on the solubilization coefficient value (ω). The functional activity of the nanocomposites: Pt NPs/Nf (a), Pd NPs/Nf (b) was confirmed by the results of the electro-cathalytical investigations [10]. Figure 10 shows CVA for the metal-polymer nanocomposites: Pt NPs/Nf (a) and Pd NPs/Nf (b).…”

Section: ) 1-initial Membrane 2-membrane + Nps (Without Dilution)mentioning

confidence: 57%

“…The optical absorption spectra (OAS) of solutions with the solid membrane Nf in the absence and in the presence of Pt (and Pd) NPs are shown in Figure 9(a) (and Figure 9(b)) [10].…”

Section: ) 1-initial Membrane 2-membrane + Nps (Without Dilution)mentioning

confidence: 99%

Nanoparticles of Palladium, Platinum and Silver:Incoporation into Perfluoro-Sulfonated Membrane MF-4SK and Ionic Nafion

Revina¹,

Busev²,

Kalinitchev³

et al. 2013

ANP

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The purpose of the investigation is the study of the physico-chemical properties and electro-catalytic characteristics of the Nafion and MF-4SK membranes with the author's nanoparticles (A. Revina, 2008) incorporated into the perfluorosulphonated cationic membranes. An important advance in the creation of new nano-composite materials with polyfunctional activity is the inclusion of nanoparticles of various metals (Pd, Pt, Ag) in these membranes. Polymer ion exchange membranes represent widely applicable materials in various areas of modern nanotechnologies. The obtained nanocomposites on the base of included nanoparticles have the perspective properties and polyfunctional activity for the applications.A. REVINA ET AL.

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“…By incorporating transition metals into BCP self‐assemblies, nano‐scale metal containing morphologies such as micelles, vesicles, platelets, and rods in solution, and lamella, cylinders, spheres, and gyroids in the solid‐state were produced . These nanostructures were used as excellent precursors for the synthesis of well‐defined metal nanoparticles via thermal decomposition, radiation treatment, and reduction …”

Section: Introductionmentioning

confidence: 99%

“…[6][7][8][9][10][11][12] By incorporating transition metals into BCP self-assemblies, nano-scale metal containing morphologies such as micelles, vesicles, platelets, and rods in solution, and lamella, cylinders, spheres, and gyroids in the solid-state were produced. [13][14][15][16] These nanostructures were used as excellent precursors for the synthesis of well-defined metal nanoparticles via thermal decomposition, [17][18][19] radiation treatment, 20 and reduction. [21][22][23] Among the wide variety of metallopolymers, iron, nickel, or cobalt containing metallopolymers enabled the use of BCP self-assemblies to form well-defined magnetic nanoparticles.…”

mentioning

confidence: 99%

Nanopatterning and micropatterning of cobalt containing block copolymers via phase‐separation and lithographic techniques

Hadadpour

Ragogna

2015

J. Polym. Sci., Part A: Polym. Chem.

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Reversible addition fragmentation transfer (RAFT) agent functionalized polydimethylsiloxane (PDMS-RAFT) was used as a macro-RAFT agent to polymerize a mixed sandwich cobaltocene containing monomer featuring g 5 -cyclopentadienyl-cobalt-g 4 -cyclobutadiene. High molecular weight block copolymers (BCP) consisting of a metallic block and a PDMS block with excellent control over molecular weight and polydispersity were prepared. Solid-state self-assembly of this BCP resulted in hexagonal domains of metallopolymer phaseseparated from PDMS. In solution, spherical micelles with a metallic core, stabilized by a PDMS corona were prepared. Pyrolysis of the BCP resulted in magnetic nanoparticles with 30% char yield. The BCP was used as an ink material for microcontact printing (lCP) to transfer long-ranged patterns.

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Metallopolymer nanocomposites based on platinum nanoparticles for chemical fuel cells

Cited by 9 publications

References 5 publications

Multifunctional Block Copolymer: Where Polymetallic and Polyelectrolyte Blocks Meet

Multifunctional Block Copolymer: Where Polymetallic and Polyelectrolyte Blocks Meet

Nanoparticles of Palladium, Platinum and Silver:Incoporation into Perfluoro-Sulfonated Membrane MF-4SK and Ionic Nafion

Nanopatterning and micropatterning of cobalt containing block copolymers via phase‐separation and lithographic techniques

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