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Митченко, С. А.; Khomutov, E. V.; Шубин, А. А.; Shul’ga, Yu. M.

doi:10.1023/a:1025725430068

Cited by 33 publications

(47 citation statements)

References 3 publications

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“…Before reduction, the Pt 4f 7/2 and 4f 5/2 peaks of K 2 PtCl 6 were presented at 74.7 and 78.1 eV, respectively. 26 After electroreduction under a constant potential of −0.6 V, the Pt 4f 7/2 and Pt 4f 5/2 peaks shifted to 71.3 and 74.6 eV (Figure 4(b)), respectively, which was consistent with that of Pt nanoparticles, 27 providing further evidence that Pt nanoparticles were successfully obtained. The higher XPS peaks than 71.3 and 74.6 eV from convoluted curves at Figure 4(b) could be assigned to PtO and PtO 2 due to Pt oxidation by oxygen or H 2 O.…”

Section: Resultssupporting

confidence: 64%

Green Synthesis of Platinum Nanoparticles by Electroreduction of a K₂PtCl₆Solid-State Precursor and Its Electrocatalytic Effects on H₂O₂Reduction

Kim¹,

Jin²,

Chang³

et al. 2013

Bulletin of the Korean Chemical Society

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A new synthesis route for Pt nanoparticles by direct electrochemical reduction of a solid-state Pt ion precursor (K 2 PtCl 6 ) is demonstrated. Solid K 2 PtCl 6 -supported polyethyleneimine (PEI) coatings on the surface of glassy carbon electrode were prepared by simple mixing of solid K 2 PtCl 6 into a 1.0% PEI solution. The potential cycling or a constant potential in a PBS (pH 7.4) medium were applied to reduce the solid K 2 PtCl 6 precursor. The reduction of Pt(IV) began at around −0.2 V and the reduction potential was ca. −0.4 V. A steady state current was achieved after 10 potential cycling scans, indicating that continuous formation of Pt nanoparticles by electrochemical reduction occurred for up to 10 cycles. After applying the reduction potential of −0.6 V for 300 s, Pt nanoparticles with diameters ranging from 0.02-0.5 µm were observed, with an even distribution over the entire glassy carbon electrode surface. Characteristics of the Pt nanoparticles, including their performance in electrochemical reduction of H 2 O 2 are examined. A distinct reduction peak observed at about −0.20 V was due to the electrocatalytic reduction of H 2 O 2 by Pt nanoparticles. From the calibration plot, the linear range for H 2 O 2 detection was 0.1-2.0 mM and the detection limit for H 2 O 2 was found to be 0.05 mM.

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Section: Resultssupporting

confidence: 64%

Green Synthesis of Platinum Nanoparticles by Electroreduction of a K₂PtCl₆Solid-State Precursor and Its Electrocatalytic Effects on H₂O₂Reduction

Kim¹,

Jin²,

Chang³

et al. 2013

Bulletin of the Korean Chemical Society

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“…In fact, the formation of the b-chlorovinyl complex Pt IV -CH=CHCl (I) under heterogeneous conditions was demonstrated by NMR [113].…”

Section: Salts and Metal-complex Catalystsmentioning

confidence: 99%

“…In order to produce an active catalyst it is necessary to treat the platinum(IV) salts first in an atmosphere of acetylene, ethylene, or propylene. It was shown by X-ray photoelectron spectroscopy [114] that such activation, unlike treatment in air, leads to partial reduction of Pt 4+ to Pt 2+ . Consequently, realization of the reaction requires the simultaneous presence of Pt 2+ and Pt 4+ complexes on the surface of the catalyst.…”

Section: Salts and Metal-complex Catalystsmentioning

confidence: 99%

“…The source of the chlorine atoms in the vinyl chloride is clearly the HCl. The reaction takes place [115] as a concerted process through the six-membered transition state C [scheme (6)]. Such a mechanism makes it possible to explain the high stereoselectivity of the reaction and rules out heterolysis of the H-Cl bond, extremely unfavorable in the absence of solvation, with the formation of H + .…”

Section: Salts and Metal-complex Catalystsmentioning

confidence: 99%

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Mechanochemistry in heterogeneous catalysis

Митченко

2007

Theor Exp Chem

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“…The copper based catalyst (G-66MR, Südchemie) was micromilled to particles in the nanometer range and used for the coating of the microchannels. The activity of the catalyst layer was found to exceed the values of the original formulation.The observation may be explained by a mechanical activation of the catalyst [46,47]. The method proposed allows shortening of the tedious and time consuming procedure for the development of an active catalytic layer.…”

Section: Catalytic Wall Reactorsmentioning

confidence: 99%

Microstructured Reactors for Catalytic Reactions

Kiwi‐Minsker

Renken

2006

ChemInform

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This review addresses the catalytic reactions performed in microstructured reactors, which are more and more recognized in recent years as a novel approach for chemistry and chemical process industry. They are particularly suited for highly exothermic and fast reactions allowing temperature control and isothermal operation. A brief evaluation of the advantages for gas-phase, liquid-phase, and gas-liquid-solid reactions carried out in miniaturized devices is discussed. Alternative designs to achieve microstructured fluid patterns, besides microfabrication, are also described. #

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Cited by 33 publications

References 3 publications

Green Synthesis of Platinum Nanoparticles by Electroreduction of a K₂PtCl₆Solid-State Precursor and Its Electrocatalytic Effects on H₂O₂Reduction

Green Synthesis of Platinum Nanoparticles by Electroreduction of a K₂PtCl₆Solid-State Precursor and Its Electrocatalytic Effects on H₂O₂Reduction

Mechanochemistry in heterogeneous catalysis

Microstructured Reactors for Catalytic Reactions

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Cited by 33 publications

References 3 publications

Green Synthesis of Platinum Nanoparticles by Electroreduction of a K2PtCl6Solid-State Precursor and Its Electrocatalytic Effects on H2O2Reduction

Green Synthesis of Platinum Nanoparticles by Electroreduction of a K2PtCl6Solid-State Precursor and Its Electrocatalytic Effects on H2O2Reduction

Mechanochemistry in heterogeneous catalysis

Microstructured Reactors for Catalytic Reactions

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Product

Resources

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Green Synthesis of Platinum Nanoparticles by Electroreduction of a K₂PtCl₆Solid-State Precursor and Its Electrocatalytic Effects on H₂O₂Reduction

Green Synthesis of Platinum Nanoparticles by Electroreduction of a K₂PtCl₆Solid-State Precursor and Its Electrocatalytic Effects on H₂O₂Reduction