Metallopolymer precursors to L10-CoPt nanoparticles: Synthesis, characterization, nanopatterning and potential application

Qingchen Dong; Wenshan Qu; Wenqing Liang; Kunpeng Guo; Haibin Xue; Yuanyuan Guo; Zhengong Meng; Cheuk Lam Ho; Chi Wah Leung; Wai Yeung Wong

doi:10.1039/c6nr00034g

Metallopolymer precursors to L1₀-CoPt nanoparticles: Synthesis, characterization, nanopatterning and potential application

Qingchen Dong^*, Wenshan Qu, Wenqing Liang, Kunpeng Guo, Haibin Xue, Yuanyuan Guo, Zhengong Meng, Cheuk Lam Ho, Chi Wah Leung, Wai Yeung Wong

^*Corresponding author for this work

Department of Chemistry

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

45 Citations (Scopus)

Abstract

Ferromagnetic (L1₀ phase) CoPt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are promising candidates for the next generation of ultrahigh-density data storage systems. It is a challenge to generate L1₀ CoPt NPs with high coercivity, controllable size, and a narrow size distribution. We report here the fabrication of L1₀ CoPt NPs by employing a heterobimetallic CoPt-containing polymer as a single-source precursor. The average size of the resulting L1₀ CoPt NPs is 3.4 nm with a reasonably narrow size standard deviation of 0.58 nm. The coercivity of L1₀ CoPt NPs is 0.54 T which is suitable for practical application. We also fabricated the L1₀ CoPt NP-based nanoline and nanodot arrays through nanoimprinting the polymer blend of CoPt-containing metallopolymer and polystyrene followed by pyrolysis. The successful transfer of the pre-defined patterns of the stamps onto the surface of the polymer blend implies that this material holds great application potential as a data storage medium.

Original language	English
Pages (from-to)	7068-7074
Number of pages	7
Journal	Nanoscale
Volume	8
Issue number	13
DOIs	https://doi.org/10.1039/c6nr00034g
Publication status	Published - 7 Apr 2016

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General Materials Science

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@article{73d44863deec436dada4cc3b8960d78a,

title = "Metallopolymer precursors to L10-CoPt nanoparticles: Synthesis, characterization, nanopatterning and potential application",

abstract = "Ferromagnetic (L10 phase) CoPt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are promising candidates for the next generation of ultrahigh-density data storage systems. It is a challenge to generate L10 CoPt NPs with high coercivity, controllable size, and a narrow size distribution. We report here the fabrication of L10 CoPt NPs by employing a heterobimetallic CoPt-containing polymer as a single-source precursor. The average size of the resulting L10 CoPt NPs is 3.4 nm with a reasonably narrow size standard deviation of 0.58 nm. The coercivity of L10 CoPt NPs is 0.54 T which is suitable for practical application. We also fabricated the L10 CoPt NP-based nanoline and nanodot arrays through nanoimprinting the polymer blend of CoPt-containing metallopolymer and polystyrene followed by pyrolysis. The successful transfer of the pre-defined patterns of the stamps onto the surface of the polymer blend implies that this material holds great application potential as a data storage medium.",

author = "Qingchen Dong and Wenshan Qu and Wenqing Liang and Kunpeng Guo and Haibin Xue and Yuanyuan Guo and Zhengong Meng and Ho, {Cheuk Lam} and Leung, {Chi Wah} and Wong, {Wai Yeung}",

note = "Funding Information: We acknowledge the financial support from the National Natural Science Foundation of China (Grant No. 61307030 and 51373145), Hong Kong Research Grants Council (HKBU203312), Areas of Excellence Scheme, University Grants Committee of HKSAR (AoE/P-03/08), Science, Technology and Innovation Committee of Shenzhen Municipality (JCYJ 20140419130507116), Hong Kong Baptist University (FRG2/13-14/083) and Hundred Talents Program of Shanxi Province. Q. Dong also thanks the financial support from the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province, the Natural Science Foundation for Young Scientists of Shanxi Province, China (Grant No. 2014021019-2), the Outstanding Young Scholars Cultivating Program, Research Project Supported by Shanxi Scholarship Council of China (Grant No. 2014-02). W. Qu thanks the financial support from Datong City Science and Technology Research Projects and the Doctoral Scientific Research Foundation of Shanxi Datong University. CWL acknowledges the support by the Hong Kong Research Grants Council (PolyU 153015/14P) and PolyU (1-ZE25).",

year = "2016",

month = apr,

day = "7",

doi = "10.1039/c6nr00034g",

language = "English",

volume = "8",

pages = "7068--7074",

journal = "Nanoscale",

issn = "2040-3364",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Metallopolymer precursors to L10-CoPt nanoparticles

T2 - Synthesis, characterization, nanopatterning and potential application

AU - Dong, Qingchen

AU - Qu, Wenshan

AU - Liang, Wenqing

AU - Guo, Kunpeng

AU - Xue, Haibin

AU - Guo, Yuanyuan

AU - Meng, Zhengong

AU - Ho, Cheuk Lam

AU - Leung, Chi Wah

AU - Wong, Wai Yeung

N1 - Funding Information: We acknowledge the financial support from the National Natural Science Foundation of China (Grant No. 61307030 and 51373145), Hong Kong Research Grants Council (HKBU203312), Areas of Excellence Scheme, University Grants Committee of HKSAR (AoE/P-03/08), Science, Technology and Innovation Committee of Shenzhen Municipality (JCYJ 20140419130507116), Hong Kong Baptist University (FRG2/13-14/083) and Hundred Talents Program of Shanxi Province. Q. Dong also thanks the financial support from the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province, the Natural Science Foundation for Young Scientists of Shanxi Province, China (Grant No. 2014021019-2), the Outstanding Young Scholars Cultivating Program, Research Project Supported by Shanxi Scholarship Council of China (Grant No. 2014-02). W. Qu thanks the financial support from Datong City Science and Technology Research Projects and the Doctoral Scientific Research Foundation of Shanxi Datong University. CWL acknowledges the support by the Hong Kong Research Grants Council (PolyU 153015/14P) and PolyU (1-ZE25).

PY - 2016/4/7

Y1 - 2016/4/7

N2 - Ferromagnetic (L10 phase) CoPt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are promising candidates for the next generation of ultrahigh-density data storage systems. It is a challenge to generate L10 CoPt NPs with high coercivity, controllable size, and a narrow size distribution. We report here the fabrication of L10 CoPt NPs by employing a heterobimetallic CoPt-containing polymer as a single-source precursor. The average size of the resulting L10 CoPt NPs is 3.4 nm with a reasonably narrow size standard deviation of 0.58 nm. The coercivity of L10 CoPt NPs is 0.54 T which is suitable for practical application. We also fabricated the L10 CoPt NP-based nanoline and nanodot arrays through nanoimprinting the polymer blend of CoPt-containing metallopolymer and polystyrene followed by pyrolysis. The successful transfer of the pre-defined patterns of the stamps onto the surface of the polymer blend implies that this material holds great application potential as a data storage medium.

AB - Ferromagnetic (L10 phase) CoPt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are promising candidates for the next generation of ultrahigh-density data storage systems. It is a challenge to generate L10 CoPt NPs with high coercivity, controllable size, and a narrow size distribution. We report here the fabrication of L10 CoPt NPs by employing a heterobimetallic CoPt-containing polymer as a single-source precursor. The average size of the resulting L10 CoPt NPs is 3.4 nm with a reasonably narrow size standard deviation of 0.58 nm. The coercivity of L10 CoPt NPs is 0.54 T which is suitable for practical application. We also fabricated the L10 CoPt NP-based nanoline and nanodot arrays through nanoimprinting the polymer blend of CoPt-containing metallopolymer and polystyrene followed by pyrolysis. The successful transfer of the pre-defined patterns of the stamps onto the surface of the polymer blend implies that this material holds great application potential as a data storage medium.

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U2 - 10.1039/c6nr00034g

DO - 10.1039/c6nr00034g

M3 - Journal article

AN - SCOPUS:84962033720

SN - 2040-3364

VL - 8

SP - 7068

EP - 7074

JO - Nanoscale

JF - Nanoscale

IS - 13

ER -

Metallopolymer precursors to L1₀-CoPt nanoparticles: Synthesis, characterization, nanopatterning and potential application

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