Surfactantless bimetallic nanostructures and method for synthesizing same

Patent metadata

Field	Value
Publication number	US-9440290-B2
Application number	US-201313850810-A
Country	US
Kind code	B2
Filing date	Mar 26, 2013
Priority date	Mar 26, 2013
Publication date	Sep 13, 2016
Grant date	Sep 13, 2016

Abstract

A bimetallic nanowire synthesis method is provided. The method includes adding first and second solutions into a vessel containing a porous template with the first solution containing first and second reagents added on one side of the porous template and the second solution added on an opposite side of the porous template. The first reagent includes a first salt of at least one of a transition metal, an actinide metal and a lanthanide metal. The second reagent includes a second salt of at least one of a transition metal, an actinide metal and a lanthanide metal. The second solution contains a reducing agent.

First claim

What is claimed is:

1. A single crystalline bimetallic nanowire synthesis method, the method comprising:
adding first and second solutions into a vessel containing a porous template with the first solution containing first and second reagents added on one side of the porous template and the second solution added on an opposite side of the porous template,
wherein the first reagent comprises a first salt of at least one of a transition metal, an actinide metal and a lanthanide metal,
wherein the second reagent comprises a second salt of at least one of a transition metal, an actinide metal and a lanthanide metal, and
wherein the second solution contains a reducing agent,

wherein the single crystalline bimetallic nanowire is formed through an electroless deposition process.

2. The method of claim 1 , wherein the synthesized single crystalline bimetallic nanowire is an alloy of the metal of the first salt and of the metal of the second salt, wherein the bimetallic nanowire has a stoichiometric composition described by: A 1-x B x , where A is the metal of the first salt, B is the metal of the second salt, and x is 0<x<1.

3. The method of claim 2 , wherein the first salt comprises a metal cation of the metal of the first salt, with a corresponding anion comprising at least one of halides, oxides, acetates, acetyl-acetates, nitrates, phosphates, sulfates, sulfides, citrates, hydroxides, amine halides, amine hydroxides, hydrogen halides, alkali halides, ethylenediamine halides, hydrogen hydroxides, cyanides, and carbonates.

4. The method of claim 3 , wherein the second salt comprises a metal cation of the metal of the second salt, with a corresponding anion comprising at least one of halides, oxides, acetates, acetyl-acetates, nitrates, phosphates, sulfates, sulfides, citrates, hydroxides, amine halides, amine hydroxides, hydrogen halides, alkali halides, ethylenediamine halides, hydrogen hydroxides, cyanides, and carbonates.

5. The method of claim 1 , wherein the first solution and the second solution comprise at least one of an aqueous solvent and an alcoholic solvent, and mixtures thereof.

6. The method of claim 5 , wherein the single crystalline bimetallic nanowire is synthesized with the solvent in a liquid state.

7. The method of claim 1 , wherein the single crystalline bimetallic nanowire comprises at least two transition metals selected from the group consisting of palladium, gold and platinum.

Assignees

• Univ New York State Res Found
• The Res Found For The State Univerisity Of New York

Inventors

• Wong Stanislaus S
• Koenigsmann Christopher

Classifications

• B22F1/0547

  Nanofibres or nanotubes · CPC title

• B22F1/00

  Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties · CPC title

• B22F1/0025

  Operations & Transport · mapped topic

• B22F1/0003

  Operations & Transport · mapped topic

• B22F9/24 Primary

  starting from liquid metal compounds, e.g. solutions · CPC title