Method for removing strongly adsorbed surfactants and capping agents from metal to facilitate their catalytic applications

Adzic, Radoslav R.; Gong, Kuanping; Cai, Yun; Wong, Stanislaus; Koenigsmann, Christopher

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Title: Method for removing strongly adsorbed surfactants and capping agents from metal to facilitate their catalytic applications

Abstract

A method of synthesizing activated electrocatalyst, preferably having a morphology of a nanostructure, is disclosed. The method includes safely and efficiently removing surfactants and capping agents from the surface of the metal structures. With regard to metal nanoparticles, the method includes synthesis of nanoparticle(s) in polar or non-polar solution with surfactants or capping agents and subsequent activation by CO-adsorption-induced surfactant/capping agent desorption and electrochemical oxidation. The method produces activated macroparticle or nanoparticle electrocatalysts without damaging the surface of the electrocatalyst that includes breaking, increasing particle thickness or increasing the number of low coordination sites.

Inventors:: Adzic, Radoslav R.; Gong, Kuanping; Cai, Yun; Wong, Stanislaus; Koenigsmann, Christopher

Issue Date:: Tue Nov 08 00:00:00 EST 2016

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1331164

Patent Number(s):: 9490486

Application Number:: 13/735,919

Assignee:: Brookhaven Science Associates, LLC (Upton, NY)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F9/24 - starting from liquid metal compounds, e.g. solutions

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M4/9041 - {Metals or alloys
H01M4/92 - Metals of platinum group

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E60/50 - Fuel cells

Show less

DOE Contract Number:: AC02-98CH10886

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Jan 07

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats


                    Adzic, Radoslav R., Gong, Kuanping, Cai, Yun, Wong, Stanislaus, and Koenigsmann, Christopher. Method for removing strongly adsorbed surfactants and capping agents from metal to facilitate their catalytic applications.  United States: N. p., 2016. 
        Web.

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                    Adzic, Radoslav R., Gong, Kuanping, Cai, Yun, Wong, Stanislaus, & Koenigsmann, Christopher. Method for removing strongly adsorbed surfactants and capping agents from metal to facilitate their catalytic applications.  United States.

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                    Adzic, Radoslav R., Gong, Kuanping, Cai, Yun, Wong, Stanislaus, and Koenigsmann, Christopher. Tue .  
        "Method for removing strongly adsorbed surfactants and capping agents from metal to facilitate their catalytic applications".  United States.  https://www.osti.gov/servlets/purl/1331164.

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@article{osti_1331164,

  title        = {Method for removing strongly adsorbed surfactants and capping agents from metal to facilitate their catalytic applications},

  author       = {Adzic, Radoslav R. and Gong, Kuanping and Cai, Yun and Wong, Stanislaus and Koenigsmann, Christopher},

  abstractNote = {A method of synthesizing activated electrocatalyst, preferably having a morphology of a nanostructure, is disclosed. The method includes safely and efficiently removing surfactants and capping agents from the surface of the metal structures. With regard to metal nanoparticles, the method includes synthesis of nanoparticle(s) in polar or non-polar solution with surfactants or capping agents and subsequent activation by CO-adsorption-induced surfactant/capping agent desorption and electrochemical oxidation. The method produces activated macroparticle or nanoparticle electrocatalysts without damaging the surface of the electrocatalyst that includes breaking, increasing particle thickness or increasing the number of low coordination sites.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Nov 08 00:00:00 EST 2016},

  month        = {Tue Nov 08 00:00:00 EST 2016}

}

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Works referenced in this record:

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Size-Dependent Enhancement of Electrocatalytic Performance in Relatively Defect-Free, Processed Ultrathin Platinum Nanowires
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Similar Records

Title: Method for removing strongly adsorbed surfactants and capping agents from metal to facilitate their catalytic applications

Abstract

Citation Formats

Carbon monoxide tolerant electrocatalyst with low platinum loading and a process for its preparation patent, December 2003

Platinum- and platinum alloy-coated palladium and palladium alloy particles and uses thereof patent, April 2010

Phase transfer and its applications in nanotechnology journal, January 2011

The Role of Organic Capping Layers of Platinum Nanoparticles in Catalytic Activity of CO Oxidation journal, February 2009

Size-controlled synthesis of colloidal platinum nanoparticles and their activity for the electrocatalytic oxidation of carbon monoxide journal, July 2005

Synthesis and catalytic activity of Pt monolayer on Pd tetrahedral nanocrystals with CO-adsorption-induced removal of surfactants journal, November 2011

Metal monolayer deposition by replacement of metal adlayers on electrode surfaces journal, March 2001

Surface-stress-induced phase transformation in metal nanowires journal, September 2003

Experimental Methods for Quantifying the Activity of Platinum Electrocatalysts for the Oxygen Reduction Reaction journal, August 2010

Density functional theory investigation of surface-stress-induced phase transformations in fcc metal nanowires journal, July 2006

Size-Dependent Enhancement of Electrocatalytic Performance in Relatively Defect-Free, Processed Ultrathin Platinum Nanowires journal, August 2010

Enhanced Electrocatalytic Performance of Processed, Ultrathin, Supported Pd–Pt Core–Shell Nanowire Catalysts for the Oxygen Reduction Reaction journal, June 2011

Size- and Composition-Dependent Enhancement of Electrocatalytic Oxygen Reduction Performance in Ultrathin Palladium–Gold (Pd 1– x Au x ) Nanowires journal, July 2012

Synthesis and Characterization of Helical Multi-Shell Gold Nanowires journal, July 2000

Oleylamine-Mediated Synthesis of Pd Nanoparticles for Catalytic Formic Acid Oxidation journal, April 2009

Quantum dot bioconjugates for imaging, labelling and sensing journal, June 2005

Synthesis of Platinum Multipods: An Induced Anisotropic Growth journal, May 2005

Hybrid Pt/Au Nanowires: Synthesis and Electronic Structure journal, August 2008

Oxygen Reduction on Well-Defined Core−Shell Nanocatalysts: Particle Size, Facet, and Pt Shell Thickness Effects journal, December 2009

Controlling the Catalytic Activity of Platinum-Monolayer Electrocatalysts for Oxygen Reduction with Different Substrates journal, March 2005

Platinum Monolayer on Nonnoble Metal−Noble Metal Core−Shell Nanoparticle Electrocatalysts for O2 Reduction journal, December 2005

Carbon monoxide tolerant electrocatalyst with low platinum loading and a process for its preparation
patent, December 2003

Platinum- and platinum alloy-coated palladium and palladium alloy particles and uses thereof
patent, April 2010

Phase transfer and its applications in nanotechnology
journal, January 2011

The Role of Organic Capping Layers of Platinum Nanoparticles in Catalytic Activity of CO Oxidation
journal, February 2009

Size-controlled synthesis of colloidal platinum nanoparticles and their activity for the electrocatalytic oxidation of carbon monoxide
journal, July 2005

Synthesis and catalytic activity of Pt monolayer on Pd tetrahedral nanocrystals with CO-adsorption-induced removal of surfactants
journal, November 2011

Metal monolayer deposition by replacement of metal adlayers on electrode surfaces
journal, March 2001

Surface-stress-induced phase transformation in metal nanowires
journal, September 2003

Experimental Methods for Quantifying the Activity of Platinum Electrocatalysts for the Oxygen Reduction Reaction
journal, August 2010

Density functional theory investigation of surface-stress-induced phase transformations in fcc metal nanowires
journal, July 2006

Size-Dependent Enhancement of Electrocatalytic Performance in Relatively Defect-Free, Processed Ultrathin Platinum Nanowires
journal, August 2010

Enhanced Electrocatalytic Performance of Processed, Ultrathin, Supported Pd–Pt Core–Shell Nanowire Catalysts for the Oxygen Reduction Reaction
journal, June 2011

Size- and Composition-Dependent Enhancement of Electrocatalytic Oxygen Reduction Performance in Ultrathin Palladium–Gold (Pd _{1– x} Au _x ) Nanowires
journal, July 2012

Synthesis and Characterization of Helical Multi-Shell Gold Nanowires
journal, July 2000

Oleylamine-Mediated Synthesis of Pd Nanoparticles for Catalytic Formic Acid Oxidation
journal, April 2009

Quantum dot bioconjugates for imaging, labelling and sensing
journal, June 2005

Synthesis of Platinum Multipods: An Induced Anisotropic Growth
journal, May 2005

Hybrid Pt/Au Nanowires: Synthesis and Electronic Structure
journal, August 2008

Oxygen Reduction on Well-Defined Core−Shell Nanocatalysts: Particle Size, Facet, and Pt Shell Thickness Effects
journal, December 2009

Controlling the Catalytic Activity of Platinum-Monolayer Electrocatalysts for Oxygen Reduction with Different Substrates
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