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intermetallic ptpb nanoparticles prepared by sodium

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Converting nanocrystalline metals into alloys and

Multi-metal nanoparticles, particularly alloys and intermetallic compounds, are useful catalysts for a variety of chemical transformations. Supported intermetallic nanoparticle catalysts are usually prepared by depositing precursors onto a support followed by high-temperature annealing, which is necessary to generate the intermetallic compound but causes sintering and minimizes surface area. Formic Acid Oxidation SpringerLinkSep 25, 2014 · Alden LR, Han DK, Matsumoto F, Abruna HD, DiSalvo FJ (2006) Intermetallic PtPb nanoparticles prepared by sodium naphthalide reduction of metal-organic precursors:electrocatalytic oxidation of formic acid. Chem Mater 18:55915596 CrossRef Google Scholar

Francis DiSalvo Chemistry & Chemical Biology Cornell

Intermetallic PtPb Nanoparticles Prepared by Sodium Naphthalide Reduction of Metal-Organic Precursors:Electrocatalytic Oxidation of Formic Acid. Chemistry of Materials 18:5591-5596. 2006; Luminescence Properties of Red-emitting M2Si5N8:Eu2+ (M = Ca, Sr, Ba) LED Conversion Phosphors. Journal of Alloys and Compounds 417:273-279. 2006 Futoshi Matsumoto - Google ScholarIntermetallic PtPb nanoparticles prepared by sodium naphthalide reduction of metal-organic precursors:electrocatalytic oxidation of formic acid LR Alden, DK Han, F Matsumoto, HD Abruña, FJ DiSalvo Chemistry of materials 18 (23), 5591-5596 , 2006 Information on researchers - Matsumoto Futoshi Effect of the d-Band Center on the Oxygen Reduction Reaction Activity of Electrochemically Dealloyed Ordered Intermetallic Platinum-Lead (PtPb) Nanoparticles Supported on TiO2-Deposited Cup-Stacked Carbon Nanotubes (Collaboration) 2018 9. Papers

Ordered intermetallic Pt-Fe nano-catalysts for carbon

Mar 01, 2018 · Conversion of toxic, indoor pollutants into innocuous products through catalytic reaction is one of the promising among other permanent solutions. -Al 2 O 3 supported, Pt-based intermetallic nanoparticles (NPs) using abundantly available metal e.g., Fe (Pt-Fe; Pt 3 Fe and PtFe 3) as catalysts are successfully prepared through a wet-impregnation method followed by calcination in the presence PtPb nanoparticle electrocatalysts:control of activity To understand the questions in the syntheses of Pt containing intermetallic nanoparticles (as electrocatalysts for direct fuel cells) by using sodium naphthalide as the reducing agent, the effects of the Pt precursors' organic ligands were investigated. PtPb syntheses were studied as the model case. PtSn Intermetallic, CoreShell, and Alloy Nanoparticles as More order, more tolerance:PtSn intermetallic and alloy nanoparticles (NPs) were prepared by the coreduction of [Pt(acac) 2] (acac=acetylacetonate) and SnCl 4.The intermetallic NPs can convert to [email protected] coreshell NPs after potential cycling in COsaturated H 2 SO 4 solution. Electrochemical studies demonstrated the coreshell and intermetallic electrocatalysts had substantially

Size control of PtPb intermetallic nanoparticles prepared

May 28, 2011 · PtPb intermetallic nanoparticles (3-6 nm) with precise control (±0.8 nm) were prepared under mild conditions by using water-in-oil (w/o) microemulsions as reaction media. The amount of the aqueous phase has no significant effect on the composition of the NPs, while it indeed affects the size of the resulting NPs in a systematic way. Size control of PtPb intermetallic nanoparticles prepared Size control of PtPb intermetallic nanoparticles prepared via microemulsions MPS-Authors Sigle, W. Former Dept. Microstructure Interfaces, Max Planck Institute for Intelligent Systems, Max Planck Society; Stuttgart Center for Electron Microscopy, Max Planck Institute Synthesis of PtSn4 and Ir3Sn7 intermetallic nanoparticles Jan 08, 2016 · Intermetallic nanoparticles of PtSn 4 and Ir 3 Sn 7 can be prepared directly from the intermetallic Zintl cluster anions [Pt 2 Sn 9 (PPh 3)] 2 and [Sn 9 Ir(cod)] 3, respectively. The close structural similarities between the clusters and intermetallic phases

Synthesis, characterization, and electrocatalytic activity

Dec 05, 2006 · Intermetallic PtPb nanoparticles have been synthesized by two solution-phase reduction methods. In the first (PtPb-B), Pt and Pb salts were reduced by sodium borohydride in methanol at room temperature. In the second (PtPb-N), metal-organic Pt and Pb precursors were reduced by sodium naphthalide in diglyme at 135 degrees C. Takao Gunji's research works Kanagawa University PtPb ordered intermetallic nanoparticles (NPs) deposited on titanium oxide (TiO2)/cup-stacked carbon nanotubes (CSCNT), PtPb NPs/TiO2/CSCNT, were prepared by synthesis of TiO2 with Ti-alkoxide Toward Phase and Catalysis Control:Tracking the Formation We have monitored the formation process of Pt-Sn intermetallic nanoparticles at atomic scale by using in situ aberration-corrected transmission electron microscopy. This provides direct imaging of the alloying mechanism in bimetallic nanoscale systems. The surface-mediated Sn diffusion and a coherent Pt3Sn/PtSn interface are responsible for overall reaction dynamics.

Tuning Surface Structure of Pd3Pb/PtnPb Nanocrystals for

Moreover, the PtPb nanoparticles were synthesized in a mixed solution containing OAm and 1octadecene (ODE) in an aim to reveal the role of Pd 3 Pb core in MOR properties. The TEM image, HRTEM image, EDX linescan spectra, and XRD pattern indicate that the nanoparticles were composed of hexagonal PtPb intermetallic phase with Pt and Pb Visible light induced decomposition of organic compounds Nov 05, 2014 · Tungsten oxide (WO 3)-supported ordered intermetallic PtPb nanoparticles (PtPb NPs/WO 3) were prepared through a co-reduction of Pt and Pb precursors with sodium borohydride in anhydrous methanol containing WO 3.The PtPb NPs/WO 3 were characterized based on the crystal structure obtained through powder X-ray diffraction (pXRD) as well as X-ray photoemission Electrocatalytic Activity of Ordered Intermetallic PtPb Dec 06, 2007 · Although the onset potential for FA oxidation is about (vs ) for PtPb nanoparticles prepared by both methods, the ones synthesized with as a reducing agent showed higher catalytic activities in terms of mass activity and current density when compared to nanoparticles synthesized with sodium naphthalide. 3335 We believe that the difference in activity arose from differences in their electroactive surface areas and potential surface contamination. In particular, the PtPb nanoparticles

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