Controlled Synthesis of Uniform Cobalt Phosphide Hyperbranched Nanocrystals Using Tri- n -octylphosphine Oxide as a Phosphorus Source

Haitao Zhang; Don-Hyung Ha; Robert Hovden; Lena Fitting Kourkoutis; Richard D. Robinson

doi:10.1021/nl103400a

Controlled Synthesis of Uniform Cobalt Phosphide Hyperbranched Nanocrystals Using Tri- n -octylphosphine Oxide as a Phosphorus Source

Haitao Zhang, Don-Hyung Ha, Robert Hovden, Lena Fitting Kourkoutis, Richard D. Robinson

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

106 Scopus citations

Abstract

A new method to produce hyperbranched Co 2P nanocrystals that are uniform in size, shape, and symmetry was developed. In this reaction tri-n-octylphosphine oxide (TOPO) was used as both a solvent and a phosphorus source. The reaction exhibits a novel monomer-saturation-dependent tunability between Co metal nanoparticle (NP) and Co 2P NP products. The morphology of Co 2P can be controlled from sheaflike structures to hexagonal symmetric structures by varying the concentration of the surfactant. This unique product differs significantly from other reported hyperbranched nanocrystals in that the highly anisotropic shapes can be stabilized as the majority shape (>84%). This is the first known use of TOPO as a reagent as well as a coordinating background solvent in NP synthesis. © 2011 American Chemical Society.

Original language	English (US)
Pages (from-to)	188-197
Number of pages	10
Journal	Nano Letters
Volume	11
Issue number	1
DOIs	https://doi.org/10.1021/nl103400a
State	Published - Jan 12 2011
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-C1-018-02
Acknowledgements: We thank John Grazul, Yuanming Zhang, and Mahmut Aksit for assistance with HRTEM, electron diffraction, and SEM, respectively. We also thank William Bassett for his help with cyclic twinning and mineralogy. L.F.K. is pleased to acknowledge helpful discussions with Peter Ercius. This work was supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). We also acknowledge support of Cornell Center for Materials Research (CCMR) with funding from the Materials Research Science and Engineering Center program of the National Science Foundation (cooperative agreement DMR 0520404), and support of Energy Materials Center at Cornell (EMC2), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Science under Award Number DE-SC0001086.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

Access to Document

10.1021/nl103400a

Cite this

@article{4ec72bb382994116943b5693950c4060,

title = "Controlled Synthesis of Uniform Cobalt Phosphide Hyperbranched Nanocrystals Using Tri- n -octylphosphine Oxide as a Phosphorus Source",

abstract = "A new method to produce hyperbranched Co 2P nanocrystals that are uniform in size, shape, and symmetry was developed. In this reaction tri-n-octylphosphine oxide (TOPO) was used as both a solvent and a phosphorus source. The reaction exhibits a novel monomer-saturation-dependent tunability between Co metal nanoparticle (NP) and Co 2P NP products. The morphology of Co 2P can be controlled from sheaflike structures to hexagonal symmetric structures by varying the concentration of the surfactant. This unique product differs significantly from other reported hyperbranched nanocrystals in that the highly anisotropic shapes can be stabilized as the majority shape (>84%). This is the first known use of TOPO as a reagent as well as a coordinating background solvent in NP synthesis. {\textcopyright} 2011 American Chemical Society.",

author = "Haitao Zhang and Don-Hyung Ha and Robert Hovden and Kourkoutis, {Lena Fitting} and Robinson, {Richard D.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-C1-018-02 Acknowledgements: We thank John Grazul, Yuanming Zhang, and Mahmut Aksit for assistance with HRTEM, electron diffraction, and SEM, respectively. We also thank William Bassett for his help with cyclic twinning and mineralogy. L.F.K. is pleased to acknowledge helpful discussions with Peter Ercius. This work was supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). We also acknowledge support of Cornell Center for Materials Research (CCMR) with funding from the Materials Research Science and Engineering Center program of the National Science Foundation (cooperative agreement DMR 0520404), and support of Energy Materials Center at Cornell (EMC2), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Science under Award Number DE-SC0001086. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2011",

month = jan,

day = "12",

doi = "10.1021/nl103400a",

language = "English (US)",

volume = "11",

pages = "188--197",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Controlled Synthesis of Uniform Cobalt Phosphide Hyperbranched Nanocrystals Using Tri- n -octylphosphine Oxide as a Phosphorus Source

AU - Zhang, Haitao

AU - Ha, Don-Hyung

AU - Hovden, Robert

AU - Kourkoutis, Lena Fitting

AU - Robinson, Richard D.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): KUS-C1-018-02 Acknowledgements: We thank John Grazul, Yuanming Zhang, and Mahmut Aksit for assistance with HRTEM, electron diffraction, and SEM, respectively. We also thank William Bassett for his help with cyclic twinning and mineralogy. L.F.K. is pleased to acknowledge helpful discussions with Peter Ercius. This work was supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). We also acknowledge support of Cornell Center for Materials Research (CCMR) with funding from the Materials Research Science and Engineering Center program of the National Science Foundation (cooperative agreement DMR 0520404), and support of Energy Materials Center at Cornell (EMC2), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Science under Award Number DE-SC0001086. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2011/1/12

Y1 - 2011/1/12

N2 - A new method to produce hyperbranched Co 2P nanocrystals that are uniform in size, shape, and symmetry was developed. In this reaction tri-n-octylphosphine oxide (TOPO) was used as both a solvent and a phosphorus source. The reaction exhibits a novel monomer-saturation-dependent tunability between Co metal nanoparticle (NP) and Co 2P NP products. The morphology of Co 2P can be controlled from sheaflike structures to hexagonal symmetric structures by varying the concentration of the surfactant. This unique product differs significantly from other reported hyperbranched nanocrystals in that the highly anisotropic shapes can be stabilized as the majority shape (>84%). This is the first known use of TOPO as a reagent as well as a coordinating background solvent in NP synthesis. © 2011 American Chemical Society.

AB - A new method to produce hyperbranched Co 2P nanocrystals that are uniform in size, shape, and symmetry was developed. In this reaction tri-n-octylphosphine oxide (TOPO) was used as both a solvent and a phosphorus source. The reaction exhibits a novel monomer-saturation-dependent tunability between Co metal nanoparticle (NP) and Co 2P NP products. The morphology of Co 2P can be controlled from sheaflike structures to hexagonal symmetric structures by varying the concentration of the surfactant. This unique product differs significantly from other reported hyperbranched nanocrystals in that the highly anisotropic shapes can be stabilized as the majority shape (>84%). This is the first known use of TOPO as a reagent as well as a coordinating background solvent in NP synthesis. © 2011 American Chemical Society.

UR - http://hdl.handle.net/10754/597863

UR - https://pubs.acs.org/doi/10.1021/nl103400a

UR - http://www.scopus.com/inward/record.url?scp=79951539137&partnerID=8YFLogxK

U2 - 10.1021/nl103400a

DO - 10.1021/nl103400a

M3 - Article

C2 - 21141992

SN - 1530-6984

VL - 11

SP - 188

EP - 197

JO - Nano Letters

JF - Nano Letters

IS - 1

ER -

Controlled Synthesis of Uniform Cobalt Phosphide Hyperbranched Nanocrystals Using Tri- n -octylphosphine Oxide as a Phosphorus Source

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this