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Title: Chemical synthesis of L1 0 Fe-Pt-Ni alloy nanoparticles

 [1];  [1]; ORCiD logo [2];  [1]
  1. Physics and Astronomy, University of Delaware, Newark, DE 19716, United States
  2. Department of Chemical Engineering, Khalifa University of Science and Technology, Petroleum Institute, Abu Dhabi, P.O. Box 2533, United Arab Emirates
Publication Date:
Sponsoring Org.:
OSTI Identifier:
Grant/Contract Number:
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 8; Journal Issue: 5; Related Information: CHORUS Timestamp: 2017-12-22 10:12:13; Journal ID: ISSN 2158-3226
American Institute of Physics
Country of Publication:
United States

Citation Formats

Deepchand, Vimal, Abel, Frank M., Tzitzios, Vasileios, and Hadjipanayis, George C. Chemical synthesis of L1 0 Fe-Pt-Ni alloy nanoparticles. United States: N. p., 2018. Web. doi:10.1063/1.5007756.
Deepchand, Vimal, Abel, Frank M., Tzitzios, Vasileios, & Hadjipanayis, George C. Chemical synthesis of L1 0 Fe-Pt-Ni alloy nanoparticles. United States. doi:10.1063/1.5007756.
Deepchand, Vimal, Abel, Frank M., Tzitzios, Vasileios, and Hadjipanayis, George C. 2018. "Chemical synthesis of L1 0 Fe-Pt-Ni alloy nanoparticles". United States. doi:10.1063/1.5007756.
title = {Chemical synthesis of L1 0 Fe-Pt-Ni alloy nanoparticles},
author = {Deepchand, Vimal and Abel, Frank M. and Tzitzios, Vasileios and Hadjipanayis, George C.},
abstractNote = {},
doi = {10.1063/1.5007756},
journal = {AIP Advances},
number = 5,
volume = 8,
place = {United States},
year = 2018,
month = 5

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1063/1.5007756

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  • Bimetallic nanoparticles (NPs) have wide applications in electronics, photonics, and catalysis. However, it is particularly challenging to synthesize size-controllable alloy nanoparticles (e.g., NiAu) with bulk immiscible metals as the components. Here we report the synthesis of isolable NiAu alloy nanoparticles with tunable and relatively uniform sizes via a coreduction method employing butyllithium as the reducing agent and trioctylphosphine as the protecting agent. The influences of synthesis conditions (e.g., protecting agent, aging temperature, and the solvent used to wash the product) were investigated, and the synthesis mechanism was preliminarily surveyed. The NiAu alloy nanoparticles obtained were then used as the precursormore » to prepare an Au-NiO/SiO2 catalyst highly active in low-temperature CO oxidation, and the effects of pretreatment details and catalyst compositions on catalytic activity were studied. Relevant characterization employing XRD, TEM, UV-vis, TG/DTG, and FT-IR was conducted. In addition, the importance of the current synthesis of NiAu alloy NPs and the contribution of the catalyst design were discussed in the context of the literature.« less
  • No abstract prepared.
  • We report the facile synthesis of carbon supported PtAu alloy nanoparticles with high electrocatalytic activity as the anode catalyst for direct formic acid fuel cells (DFAFCs). PtAu alloy nanopaticles are synthesized by co-reducing HAuCl4 and H2PtCl6 with NaBH4 in the presence of sodium citrate and then the nanoparticles are deposited on Vulcan XC-72R carbon support (PtAu/C). The obtained catalysts are characterized with X-ray diffraction (XRD) and transmission electron microscope (TEM), which reveal PtAu alloy formation with an average diameter of 4.6 nm. PtAu/C exhibits 8 times higher catalytic activity toward formic acid oxidation than Pt/C. The enhanced activity of PtAu/Cmore » catalyst is attributed to noncontinuous Pt sites formed in the presence of the neighbored Au sites, which promotes direct oxidation of formic acid by avoiding poison CO.« less
  • Monodisperse AuAg alloy nanoparticles (NPs) are made from core/shell Ag/Au NPs through Au and Ag diffusion in oleylamine. The composition of the alloy NPs is controlled by the Au shell thickness and the plasmonic absorptions can be tuned from 520 to 400 nm. These alloy NPs have great potential as optical probes for biosensing and bioimaging, or as catalysts for CO oxidation.
  • PtAu alloy nanoparticles (~ 3.2 nm in diameter) are synthesized in poly(diallyldimethylammonium chloride) (PDDA) aqueous solution and uniformly dispersed on graphene nanosheets. PtAu/graphene exhibits high electrocatalytic activity and stability for formic acid oxidation, which is attributed to the high dispersion of PtAu nanoparticles and the specific interaction between PtAu and graphene, indicating a promising catalyst for direct formic acid fuel cells. The facile method can be readily extended to the synthesis of other alloy nanoparticles.