Low-temperature solution synthesis of the non-equilibrium ordered intermetallic compounds Au3Fe, Au3Co, and Au3Ni as nanocrystals

Journal of the American Chemical Society
Yolanda VasquezRaymond E Schaak

Abstract

Alloys and intermetallic compounds of Au with the 3d transition metals Fe, Co, and Ni are nonequilibrium phases that have many useful potential applications as catalytic, magnetic, optic, and multifunctional magneto-optic materials. However, the atomically ordered Au-M (M = Fe, Co, Ni) intermetallics are particularly elusive from a synthetic standpoint. Here we report the low-temperature solution synthesis of the L12 (Cu3Au-type) intermetallic compounds Au3Fe, Au3Co, and Au3Ni using n-butyllithium as a reducing agent. Reaction pathway studies for the Au3Co system indicate that Au nucleates first, followed by Co incorporation to form the intermetallic. The nonequilibrium intermetallic nanocrystals have been characterized by powder XRD, TEM, EDS, selected area electron diffraction, and nanobeam electron diffraction, which collectively confirm the compositions and superlattice structures.

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Citations

May 13, 2010·Journal of the American Chemical Society·Anand Udaykumar NilekarManos Mavrikakis
Jul 2, 2009·Journal of the American Chemical Society·James F BondiRaymond E Schaak
May 23, 2009·Chemical Communications : Chem Comm·Ting-Hao Phan, Raymond E Schaak
May 21, 2013·Nanoscale·Vincenzo AmendolaAlessandro Lascialfari
Jul 17, 2015·Journal of the American Chemical Society·Ronald B SorianoMercouri G Kanatzidis
Jul 2, 2016·Chemical Reviews·Kyle D GilroyYounan Xia
Sep 17, 2016·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Dominik KriegnerWolfgang Heiss
Mar 25, 2017·Journal of the American Chemical Society·Bo HuangHiroshi Kitagawa
Sep 27, 2016·Angewandte Chemie·Samantha M ClarkeDanna E Freedman
Feb 25, 2017·Advanced Materials·Yucong YanHui Zhang
Dec 19, 2015·Chemical Communications : Chem Comm·Mustafa K BayazitMilo S P Shaffer
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Oct 20, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Subhra Jana
Mar 30, 2010·Nanotechnology·C de Julián FernándezA Caneschi
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Nov 22, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Ryan Lacdao ArevaloHideaki Kasai
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May 11, 2013·Chemical Communications : Chem Comm·Elizabeth R Essinger-HilemanRaymond E Schaak
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Apr 30, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Qi LiShenghu Zhou
Nov 19, 2021·Advanced Science·Hyunjoong KimTaeghwan Hyeon

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