Methylviologen mediated electrochemical synthesis of catalytically active ultrasmall bimetallic PdAg nanoparticles stabilized by CTAC

Nasretdinova, Gulnaz R.; Fazleeva, Rezeda R.; Osin, Yu. N.; Evtjugin, Vladimir G.; Gubaidullin, А. Т.; Ziganshinа, Albina Y.; Yanilkin, V. V.

doi:10.1016/j.electacta.2018.07.109

Cited by 29 publications

(20 citation statements)

References 65 publications

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“…(2) Addition of surfactants Another method used to improve nanoparticles deposition is the use of surfactants. The most common surfactants are poly-(N-vinyl-2-pyrrolidone) (PVP, MW-10000) [107][108][109], sodium carboxymethylcellulose (CMC) [110], cetyltrimethylammonium bromide (CTAB) cetyltrimethylammonium chloride (CTAC) [41,107,111]. They play a key role in the physical separation of the NPs and in the inhibition of their agglomeration [88].…”

Section: New Methods For the Deposition Processmentioning

confidence: 99%

“…The preparation of metallic (Ag, Rh, Pd, Au) and bimetallic (RhPd, PdAg, Au/Cu 2 O) NPs can also be achieved by mediated electrosynthesis [41,107,108,111,116]. In this case, the electrode potential applied corresponds to the redox potential of the mediator which is not consumed during the reaction.…”

Section: New Methods For the Deposition Processmentioning

confidence: 99%

“…In this case, the electrode potential applied corresponds to the redox potential of the mediator which is not consumed during the reaction. Various mediators have been reported for the synthesis of NPs, such as molecular oxygen [116], methylviologen [107,111] [108]. The mediated electrochemical synthesis requires catalytic amounts of nonconsumable mediator (no waste generated), which makes it more environmentally attractive than chemical synthesis.…”

Section: New Methods For the Deposition Processmentioning

confidence: 99%

“…18. For example, the cubic shape of face-centered cubic (fcc) NPs has (100) facets, and tetrahedral, octahedral, and icosahedral fcc NPs have (111) facets. Truncated octahedral have both ( 100) and ( 111) facets.…”

Section: [ ] [ ]mentioning

confidence: 99%

“…These different atomic arrangements influence the adsorption of reactants onto the surface or the bond cleavage during the surface reaction [158]. For instance, active hydrogen is more stable on (111) facets than on (100) facets since the adsorption energy of hydrogen on Pd (111) facets is stronger than that on (100) facets [159]. He et al [96] attributed the high catalytic activity of Pd NPs toward the dechlorination of 2,4-D to their high amount of ( 111) facets associated with a high number of atoms on edge/corner sites, compared with Pd NPs with mainly (100) facets.…”

Section: [ ] [ ]mentioning

confidence: 99%

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Bimetallic Nanoalloy catalysts have diverse uses in clean energy, sensing, catalysis, biomedicine, and energy storage, with some supported and unsupported catalysts. Conventional synthetic methods for producing bimetallic alloy nanoparticles often produce unalloyed and bulky particles that do not exhibit desired characteristics. Alloys, when prepared with advanced nanoscale methods, give higher surface area, activity, and selectivity than individual metals due to changes in their electronic properties and reduced size. This review demonstrates the synthesis methods and principles to produce and characterize highly dispersed, well‐alloyed bimetallic nanoalloy particles in relatively simple, effective, and generalized approaches and the overall existence of conventional synthetic methods with modifications to prepare bimetallic alloy catalysts. The basic concepts and mechanistic understanding are represented with purposely selected examples. Herein, the enthralling properties with widespread applications of nanoalloy catalysts in heterogeneous catalysis are also presented, especially for Hydrogen Evolution Reaction (HER), Oxidation Reduction Reaction (ORR), Oxygen Evolution Reaction (OER), and alcohol oxidation with a particular focus on Pt and Pd‐based bimetallic nanoalloys and their numerous fields of applications. The high entropy alloy is described as a complicated subject with an emphasis on laser‐based green synthesis of nanoparticles and, in conclusion, the forecasts and contemporary challenges for the controlled synthesis of nanoalloys are addressed.

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Methylviologen mediated electrochemical synthesis of catalytically active ultrasmall bimetallic PdAg nanoparticles stabilized by CTAC

Cited by 29 publications

References 65 publications

Metallic nanoparticles for electrocatalytic reduction of halogenated organic compounds: A review

Metallic nanoparticles for electrocatalytic reduction of halogenated organic compounds: A review

Bimetallic Nanoalloy Catalysts for Green Energy Production: Advances in Synthesis Routes and Characterization Techniques

Electrosynthesis of Nanostructures Without a Coating Formation on Electrodes

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