Surfactant-free synthesis of NiPd nanoalloy/graphene bifunctional nanocomposite for fuel cell

Karthikeyan Gopalsamy; Jayaraman Balamurugan; Tran Duy Thanh; Nam Hoon Kim; David Hui; Joong Hee Lee

doi:10.1016/j.compositesb.2017.01.061

Surfactant-free synthesis of NiPd nanoalloy/graphene bifunctional nanocomposite for fuel cell

Karthikeyan Gopalsamy
, Jayaraman Balamurugan
, Tran Duy Thanh
, Nam Hoon Kim
, David Hui
, Joong Hee Lee^*

^*Corresponding author for this work

Department of Nano Convergence Engineering

Jeonbuk National University
University of New Orleans

Research output: Contribution to journal › Journal article › peer-review

47 Scopus citations

Abstract

Nickel-palladium alloy nanoparticles over graphene nanosheets (NiPd alloy NPs/GNS) are synthesized using ammonia-hydrazine method via a surfactant-free hydrothermal process. NiPd alloy NPs/GNS represent a new class of electrocatalyst with enhanced activity and stability for formic acid and ethanol oxidation reactions. The as-prepared catalysts are characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), STEM-elemental mapping, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Cyclic voltammetry (CV) and chronoamperometry (CA) studies reveal that bimetallic alloy nanoparticles exhibit higher catalytic activity than monometallic catalysts toward electro-oxidation reactions. The higher activity is mainly attributed to the strong assembly of bimetallic NiPd alloy NPs over graphene sheets. The novel NiPd alloy NPs/GNS catalysts provide a new strategy for superior electro-catalytic performance in next-generation fuel cells.

Original language	English
Pages (from-to)	319-327
Number of pages	9
Journal	Composites Part B: Engineering
Volume	114
DOIs	https://doi.org/10.1016/j.compositesb.2017.01.061
State	Published - 2017.04.1

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Chemical properties
Electrical properties
Nano-structures
Surface properties

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Mechanical

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10.1016/j.compositesb.2017.01.061

Cite this

@article{6d385aef54d0402e851c442fc7ef328a,

title = "Surfactant-free synthesis of NiPd nanoalloy/graphene bifunctional nanocomposite for fuel cell",

abstract = "Nickel-palladium alloy nanoparticles over graphene nanosheets (NiPd alloy NPs/GNS) are synthesized using ammonia-hydrazine method via a surfactant-free hydrothermal process. NiPd alloy NPs/GNS represent a new class of electrocatalyst with enhanced activity and stability for formic acid and ethanol oxidation reactions. The as-prepared catalysts are characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), STEM-elemental mapping, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Cyclic voltammetry (CV) and chronoamperometry (CA) studies reveal that bimetallic alloy nanoparticles exhibit higher catalytic activity than monometallic catalysts toward electro-oxidation reactions. The higher activity is mainly attributed to the strong assembly of bimetallic NiPd alloy NPs over graphene sheets. The novel NiPd alloy NPs/GNS catalysts provide a new strategy for superior electro-catalytic performance in next-generation fuel cells.",

keywords = "Chemical properties, Electrical properties, Nano-structures, Surface properties",

author = "Karthikeyan Gopalsamy and Jayaraman Balamurugan and Thanh, \{Tran Duy\} and Kim, \{Nam Hoon\} and David Hui and Lee, \{Joong Hee\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = apr,

day = "1",

doi = "10.1016/j.compositesb.2017.01.061",

language = "English",

volume = "114",

pages = "319--327",

journal = "Composites Part B: Engineering",

issn = "1359-8368",

}

TY - JOUR

T1 - Surfactant-free synthesis of NiPd nanoalloy/graphene bifunctional nanocomposite for fuel cell

AU - Gopalsamy, Karthikeyan

AU - Balamurugan, Jayaraman

AU - Thanh, Tran Duy

AU - Kim, Nam Hoon

AU - Hui, David

AU - Lee, Joong Hee

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Nickel-palladium alloy nanoparticles over graphene nanosheets (NiPd alloy NPs/GNS) are synthesized using ammonia-hydrazine method via a surfactant-free hydrothermal process. NiPd alloy NPs/GNS represent a new class of electrocatalyst with enhanced activity and stability for formic acid and ethanol oxidation reactions. The as-prepared catalysts are characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), STEM-elemental mapping, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Cyclic voltammetry (CV) and chronoamperometry (CA) studies reveal that bimetallic alloy nanoparticles exhibit higher catalytic activity than monometallic catalysts toward electro-oxidation reactions. The higher activity is mainly attributed to the strong assembly of bimetallic NiPd alloy NPs over graphene sheets. The novel NiPd alloy NPs/GNS catalysts provide a new strategy for superior electro-catalytic performance in next-generation fuel cells.

AB - Nickel-palladium alloy nanoparticles over graphene nanosheets (NiPd alloy NPs/GNS) are synthesized using ammonia-hydrazine method via a surfactant-free hydrothermal process. NiPd alloy NPs/GNS represent a new class of electrocatalyst with enhanced activity and stability for formic acid and ethanol oxidation reactions. The as-prepared catalysts are characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), STEM-elemental mapping, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Cyclic voltammetry (CV) and chronoamperometry (CA) studies reveal that bimetallic alloy nanoparticles exhibit higher catalytic activity than monometallic catalysts toward electro-oxidation reactions. The higher activity is mainly attributed to the strong assembly of bimetallic NiPd alloy NPs over graphene sheets. The novel NiPd alloy NPs/GNS catalysts provide a new strategy for superior electro-catalytic performance in next-generation fuel cells.

KW - Chemical properties

KW - Electrical properties

KW - Nano-structures

KW - Surface properties

UR - https://www.scopus.com/pages/publications/85013104246

U2 - 10.1016/j.compositesb.2017.01.061

DO - 10.1016/j.compositesb.2017.01.061

M3 - Journal article

AN - SCOPUS:85013104246

SN - 1359-8368

VL - 114

SP - 319

EP - 327

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

ER -

Surfactant-free synthesis of NiPd nanoalloy/graphene bifunctional nanocomposite for fuel cell

Abstract

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

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