Preparation of colloidal platinum/palladium alloy particles from non-ionic microemulsions: Characterization and catalytic behaviour

Touroude, R.; Girard, P.; Maire, G.; Kizling, Jerzy; Boutonnet-Kizling, Magali; Stenius, Per

doi:10.1016/0166-6622(92)80280-f

Cited by 80 publications

(63 citation statements)

References 16 publications

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“…Their preparation has been achieved by some methods, such as solvent extraction reduction (14), alcohol reduction (5,40), and impregnation-reduction (41)(42)(43). The synthesis of Pd/Pt bimetallic nanoparticles using microemulsion technique has been reported by only Touroude et al (37). In their work, the catalytic properties of Pd/Pt bimetallic nanoparticles prepared by the coreduction of PdCl 2 and H 2 PtCl 6 with hydrazine in the nonionic w/o microemulsions of water/pentaethylene glycol dodecyl ether/hexadecane were emphasized.…”

Section: Introductionmentioning

confidence: 98%

“…Many kinds of nanoparticles have been prepared in water/oil (w/o) microemulsions, including metals (21)(22)(23)(24)(25), metal oxides and hydroxides (26)(27)(28)(29), metal sulfides and selenides (30)(31)(32)(33), metal borides (34), and metal carbonates (35). However, until now, the preparation of bimetallic nanoparticles in w/o microemulsions has not been tried as much except for the Cu/Au (36), Pd/Pt (37), Au/Pt (38), and Au/Pd (39) systems.…”

Section: Introductionmentioning

confidence: 98%

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Preparation of Pd/Pt Bimetallic Nanoparticles in Water/AOT/Isooctane Microemulsions

Chen

Huang

2001

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Preparation of Pd/Pt Bimetallic Nanoparticles in Water/AOT/Isooctane Microemulsions

Chen

Huang

2001

Journal of Colloid and Interface Science

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“…Pt-Pd nanoparticles (∆ε 0 = 0.15 V) at various molar ratios have been prepared by co-reduction with hydrazine in different microemulsions [84][85][86]. The resultant nanoparticles were characterized by TEM, XRD, EDX, and XPS.…”

Section: Bimetallic Nanoparticles Obtained From Microemulsions Using mentioning

confidence: 99%

On Metal Segregation of Bimetallic Nanocatalysts Prepared by a One-Pot Method in Microemulsions

2017

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A comparative study on different bimetallic nanocatalysts prepared from microemulsions using a one-pot method has been carried out. The analysis of experimental observations, complemented by simulation studies, provides detailed insight into the factors affecting nanoparticle architecture: (1) The metal segregation in a bimetallic nanocatalysts is the result of the combination of three main kinetic parameters: the reduction rate of metal precursors (related to reduction standard potentials), the material intermicellar exchange rate (determined by microemulsion composition), and the metal precursors concentration; (2) A minimum difference between the reduction standard potentials of the two metals of 0.20 V is needed to obtain a core-shell structure. For values ∆ε 0 smaller than 0.20 V the obtaining of alloys cannot be avoided, neither by changing the microemulsion nor by increasing metal concentration; (3) As a rule, the higher the film flexibility around the micelles, the higher the degree of mixture in the nanocatalyst; (4) A minimum concentration of metal precursors is required to get a core-shell structure. This minimum concentration depends on the microemulsion flexibility and on the difference in reduction rates.

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“…Touroude et al [58] synthesized bimetallic particles of platinum and palladium by reduction of H2PtC16 and PdC12 with hydrazine in water/pentaethylene glycol dodecyl ether/hexadecane microemulsions. Similarly, platinum particles have also been synthesized in aerosol-OT (AOT) and cetyl trimethyl ammonium bromide (CTAB) based microemulsions for applications in catalysis [59].…”

Section: Particle Synthesis In Microemulsionsmentioning

confidence: 99%

Preparation of nanoparticles of silver halides, superconductors and magnetic materials using water-in-oil microemulsions as nano-reactors

Pillai

Kumar

Hou

et al. 1995

Advances in Colloid and Interface Science

249

121

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Preparation of colloidal platinum/palladium alloy particles from non-ionic microemulsions: Characterization and catalytic behaviour

Cited by 80 publications

References 16 publications

Preparation of Pd/Pt Bimetallic Nanoparticles in Water/AOT/Isooctane Microemulsions

Preparation of Pd/Pt Bimetallic Nanoparticles in Water/AOT/Isooctane Microemulsions

On Metal Segregation of Bimetallic Nanocatalysts Prepared by a One-Pot Method in Microemulsions

Preparation of nanoparticles of silver halides, superconductors and magnetic materials using water-in-oil microemulsions as nano-reactors

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