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Surface ligand mediated growth of CuPt nanorods

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C3CE41524D.pdf (3.953Mb)
Date
07/03/2014
Author
Yu, Fengjiao
Xu, Xiaoxiang
Baddeley, Christopher John
Bellabarba, Ronan
Lignier, Pascal
Tooze, Robert Paul
Fina, Federica
Irvine, John Thomas Sirr
Zhou, Wuzong
Funder
EPSRC
EPSRC
Grant ID
EP/K015540/1
EP/F019580/1
Keywords
CuPt alloy nanorods
Nanocrystallites
Hexadecanoic acid
Hexadecylamine
CuPt nanowires
Ligands
Photocatalytic hydrogen
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Abstract
CuPt alloy nanorods have been synthesized via one dimensional assembly of randomly orientated nanocrystallites in the presence of hexadecanoic acid and hexadecylamine as surface ligands. When hexadecanoic acid was added into the synthetic system first followed by a second step of adding hexadecylamine, strands of ultrathin CuPt nanowires were produced. The roles of the amine and organic acid are discussed. A novel ligand mediated mechanism is proposed, in which the formation of a stable monolayer structure of the ligands is the driving force to guide the 1D growth of the alloy nanorods without the influence of the crystal orientation. Photocatalytic hydrogen production from water has been performed using CuPt nanorods as a cocatalyst, which has a higher production rate (234.08 μmol h−1 g−1) than that of Pt nanorods under the same conditions (~66.35 μmol h−1 g−1). Our results suggest that polycrystalline CuPt nanorods with a large amount of defects are probably promising cocatalyst for photocatalysis.
Citation
Yu , F , Xu , X , Baddeley , C J , Bellabarba , R , Lignier , P , Tooze , R P , Fina , F , Irvine , J T S & Zhou , W 2014 , ' Surface ligand mediated growth of CuPt nanorods ' , CrystEngComm , vol. 16 , no. 9 , pp. 1714-1723 . https://doi.org/10.1039/c3ce41524d
Publication
CrystEngComm
Status
Peer reviewed
DOI
https://doi.org/10.1039/c3ce41524d
ISSN
1466-8033
Type
Journal article
Rights
Copyright 2013, the authors. Publisher retains rights to publish. Version of record is available at DOI: 10.1039/C3CE41524D.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/5865

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