Sonochemical Formation of Ga-Pt Intermetallic Nanoparticles Embedded in Graphene and its Potential Use as an Electrocatalyst

Vijay Bhooshan Kumar; Jakkid Sanetuntikul; Pandian Ganesan; Ze'ev Porat; Sangaraju Shanmugam; Aharon Gedanken

doi:10.1016/j.electacta.2015.12.193

Sonochemical Formation of Ga-Pt Intermetallic Nanoparticles Embedded in Graphene and its Potential Use as an Electrocatalyst

Vijay Bhooshan Kumar, Jakkid Sanetuntikul, Pandian Ganesan, Ze'ev Porat, Sangaraju Shanmugam, Aharon Gedanken

Department of Civil and Environmental Engineering

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

45 Scopus citations

Abstract

The formation of Ga-Pt particles and their simultaneous embedment in graphene layers was performed by sonication of molten gallium in an aqueous solution of H₂PtCl₆ in the presence of graphene. X-ray analysis of the dry particles revealed that their composition was GaPt₃ and GaPt_2. The synthesized Ga-Pt/G was examined as an electrode material for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). This novel electrode showed better activity for MOR and ORR than a commercial Pt/C catalyst.

Original language	English
Pages (from-to)	659-667
Number of pages	9
Journal	Electrochimica Acta
Volume	190
DOIs	https://doi.org/10.1016/j.electacta.2015.12.193
State	Published - 1 Feb 2016

Keywords

Gallium-platinum intermetallic
Ultrasonic cavitation
graphene
methanol oxidation reaction
nanoparticles
oxygen reduction reaction

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

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10.1016/j.electacta.2015.12.193

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title = "Sonochemical Formation of Ga-Pt Intermetallic Nanoparticles Embedded in Graphene and its Potential Use as an Electrocatalyst",

abstract = "The formation of Ga-Pt particles and their simultaneous embedment in graphene layers was performed by sonication of molten gallium in an aqueous solution of H2PtCl6 in the presence of graphene. X-ray analysis of the dry particles revealed that their composition was GaPt3 and GaPt2. The synthesized Ga-Pt/G was examined as an electrode material for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). This novel electrode showed better activity for MOR and ORR than a commercial Pt/C catalyst.",

keywords = "Gallium-platinum intermetallic, Ultrasonic cavitation, graphene, methanol oxidation reaction, nanoparticles, oxygen reduction reaction",

author = "Kumar, \{Vijay Bhooshan\} and Jakkid Sanetuntikul and Pandian Ganesan and Ze'ev Porat and Sangaraju Shanmugam and Aharon Gedanken",

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doi = "10.1016/j.electacta.2015.12.193",

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journal = "Electrochimica Acta",

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T1 - Sonochemical Formation of Ga-Pt Intermetallic Nanoparticles Embedded in Graphene and its Potential Use as an Electrocatalyst

AU - Kumar, Vijay Bhooshan

AU - Sanetuntikul, Jakkid

AU - Ganesan, Pandian

AU - Porat, Ze'ev

AU - Shanmugam, Sangaraju

AU - Gedanken, Aharon

PY - 2016/2/1

Y1 - 2016/2/1

N2 - The formation of Ga-Pt particles and their simultaneous embedment in graphene layers was performed by sonication of molten gallium in an aqueous solution of H2PtCl6 in the presence of graphene. X-ray analysis of the dry particles revealed that their composition was GaPt3 and GaPt2. The synthesized Ga-Pt/G was examined as an electrode material for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). This novel electrode showed better activity for MOR and ORR than a commercial Pt/C catalyst.

AB - The formation of Ga-Pt particles and their simultaneous embedment in graphene layers was performed by sonication of molten gallium in an aqueous solution of H2PtCl6 in the presence of graphene. X-ray analysis of the dry particles revealed that their composition was GaPt3 and GaPt2. The synthesized Ga-Pt/G was examined as an electrode material for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). This novel electrode showed better activity for MOR and ORR than a commercial Pt/C catalyst.

KW - Gallium-platinum intermetallic

KW - Ultrasonic cavitation

KW - graphene

KW - methanol oxidation reaction

KW - nanoparticles

KW - oxygen reduction reaction

UR - https://www.scopus.com/pages/publications/84954285052

U2 - 10.1016/j.electacta.2015.12.193

DO - 10.1016/j.electacta.2015.12.193

M3 - Article

AN - SCOPUS:84954285052

SN - 0013-4686

VL - 190

SP - 659

EP - 667

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Sonochemical Formation of Ga-Pt Intermetallic Nanoparticles Embedded in Graphene and its Potential Use as an Electrocatalyst

Abstract

Keywords

ASJC Scopus subject areas

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