Preparation and growth mechanism study of polymer protected Au/Pd bimetallic nanoparticles by simultaneous reduction of HAuCl 4 and PdCl 2

J. F. Sánchez-Ramírez; G. Díaz; A. Vázquez; U. Pal

Preparation and growth mechanism study of polymer protected Au/Pd bimetallic nanoparticles by simultaneous reduction of HAuCl ₄ and PdCl ₂

J. F. Sánchez-Ramírez, G. Díaz, A. Vázquez, U. Pal

Research output: Contribution to journal › Article › peer-review

Abstract

We report on the preparation of polymer-protected gold-palladium bimetallic particles in colloidal form by the reduction of corresponding metal ions simultaneously. Formation of nanoparticles and their constitution were studied by x-ray diffraction (XRD), transmission electron microscopy (TEM) and optical absorption spectroscopy techniques. The average size of the particles depended strongly on the molar ratio of two metal ions in the reaction mixture. XRD study revealed that the Au/Pd colloids prepared with different molar ratios form some partially alloyed structure of those metals. A high concentration of Pd ions in the reaction mixture produces non-dispersed small bimetallic colloids. Mechanism of formation of bimetallic Au/Pd particles has been studied.

Original language	English
Pages (from-to)	127-131
Number of pages	5
Journal	Journal of New Materials for Electrochemical Systems
Volume	8
Issue number	2
State	Published - Apr 2005
Externally published	Yes

Keywords

Bimetallic colloids
Clusters
Growth mechanism
Nanoparticles
Optical properties

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Preparation and growth mechanism study of polymer protected Au/Pd bimetallic nanoparticles by simultaneous reduction of HAuCl 4 and PdCl 2 ",

abstract = "We report on the preparation of polymer-protected gold-palladium bimetallic particles in colloidal form by the reduction of corresponding metal ions simultaneously. Formation of nanoparticles and their constitution were studied by x-ray diffraction (XRD), transmission electron microscopy (TEM) and optical absorption spectroscopy techniques. The average size of the particles depended strongly on the molar ratio of two metal ions in the reaction mixture. XRD study revealed that the Au/Pd colloids prepared with different molar ratios form some partially alloyed structure of those metals. A high concentration of Pd ions in the reaction mixture produces non-dispersed small bimetallic colloids. Mechanism of formation of bimetallic Au/Pd particles has been studied.",

keywords = "Bimetallic colloids, Clusters, Growth mechanism, Nanoparticles, Optical properties",

author = "S{\'a}nchez-Ram{\'i}rez, {J. F.} and G. D{\'i}az and A. V{\'a}zquez and U. Pal",

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volume = "8",

pages = "127--131",

journal = "Journal of New Materials for Electrochemical Systems",

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T1 - Preparation and growth mechanism study of polymer protected Au/Pd bimetallic nanoparticles by simultaneous reduction of HAuCl 4 and PdCl 2

AU - Sánchez-Ramírez, J. F.

AU - Díaz, G.

AU - Vázquez, A.

AU - Pal, U.

PY - 2005/4

Y1 - 2005/4

N2 - We report on the preparation of polymer-protected gold-palladium bimetallic particles in colloidal form by the reduction of corresponding metal ions simultaneously. Formation of nanoparticles and their constitution were studied by x-ray diffraction (XRD), transmission electron microscopy (TEM) and optical absorption spectroscopy techniques. The average size of the particles depended strongly on the molar ratio of two metal ions in the reaction mixture. XRD study revealed that the Au/Pd colloids prepared with different molar ratios form some partially alloyed structure of those metals. A high concentration of Pd ions in the reaction mixture produces non-dispersed small bimetallic colloids. Mechanism of formation of bimetallic Au/Pd particles has been studied.

AB - We report on the preparation of polymer-protected gold-palladium bimetallic particles in colloidal form by the reduction of corresponding metal ions simultaneously. Formation of nanoparticles and their constitution were studied by x-ray diffraction (XRD), transmission electron microscopy (TEM) and optical absorption spectroscopy techniques. The average size of the particles depended strongly on the molar ratio of two metal ions in the reaction mixture. XRD study revealed that the Au/Pd colloids prepared with different molar ratios form some partially alloyed structure of those metals. A high concentration of Pd ions in the reaction mixture produces non-dispersed small bimetallic colloids. Mechanism of formation of bimetallic Au/Pd particles has been studied.

KW - Bimetallic colloids

KW - Clusters

KW - Growth mechanism

KW - Nanoparticles

KW - Optical properties

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M3 - Artículo

AN - SCOPUS:17444366142

SN - 1480-2422

VL - 8

SP - 127

EP - 131

JO - Journal of New Materials for Electrochemical Systems

JF - Journal of New Materials for Electrochemical Systems

IS - 2

ER -

Preparation and growth mechanism study of polymer protected Au/Pd bimetallic nanoparticles by simultaneous reduction of HAuCl ₄ and PdCl ₂

Abstract

Keywords

UN SDGs

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