Oriented attachment growth of monocrystalline cuprous oxide nanowires in pure water

Jun Meng, Chengyi Hou*, Hongzhi Wang, Qijin Chi, Yi Gao, Beien Zhu

*Corresponding author for this work

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Abstract

As a crucial mechanism of non-classical crystallization, the oriented attachment (OA) growth of nanocrystals is of great interest in nanoscience and materials science. The OA process occurring in aqueous solution with chemical reagents has been reported many times, but there are limited studies reporting the OA growth in pure water. In this work, we report the temperature-dependent OA growth of cuprous oxide (Cu2O) nanowires in pure water through a reagent-free electrophoretic method. Our experiments demonstrate that Cu2O quantum dots randomly coalesced to form polycrystalline nanowires at room temperature, while they form monocrystalline nanowires at higher temperatures by the OA mechanism. DFT modeling and computations indicate that the water coverage on the Cu2O nanoparticles could affect the particle attachment mechanisms. This study sheds light on the understanding of the effects of water molecules on the OA mechanism and shows new approaches for better controllable non-classical crystallization in pure water.
Original languageEnglish
JournalNanoscale Advances
Volume1
Issue number6
Pages (from-to)2174-2179
Number of pages6
ISSN2516-0230
DOIs
Publication statusPublished - 2019

Cite this

Meng, Jun ; Hou, Chengyi ; Wang, Hongzhi ; Chi, Qijin ; Gao, Yi ; Zhu, Beien. / Oriented attachment growth of monocrystalline cuprous oxide nanowires in pure water. In: Nanoscale Advances. 2019 ; Vol. 1, No. 6. pp. 2174-2179.
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title = "Oriented attachment growth of monocrystalline cuprous oxide nanowires in pure water",
abstract = "As a crucial mechanism of non-classical crystallization, the oriented attachment (OA) growth of nanocrystals is of great interest in nanoscience and materials science. The OA process occurring in aqueous solution with chemical reagents has been reported many times, but there are limited studies reporting the OA growth in pure water. In this work, we report the temperature-dependent OA growth of cuprous oxide (Cu2O) nanowires in pure water through a reagent-free electrophoretic method. Our experiments demonstrate that Cu2O quantum dots randomly coalesced to form polycrystalline nanowires at room temperature, while they form monocrystalline nanowires at higher temperatures by the OA mechanism. DFT modeling and computations indicate that the water coverage on the Cu2O nanoparticles could affect the particle attachment mechanisms. This study sheds light on the understanding of the effects of water molecules on the OA mechanism and shows new approaches for better controllable non-classical crystallization in pure water.",
author = "Jun Meng and Chengyi Hou and Hongzhi Wang and Qijin Chi and Yi Gao and Beien Zhu",
year = "2019",
doi = "10.1039/C8NA00374B",
language = "English",
volume = "1",
pages = "2174--2179",
journal = "Nanoscale Advances",
issn = "2516-0230",
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Meng, J, Hou, C, Wang, H, Chi, Q, Gao, Y & Zhu, B 2019, 'Oriented attachment growth of monocrystalline cuprous oxide nanowires in pure water', Nanoscale Advances, vol. 1, no. 6, pp. 2174-2179. https://doi.org/10.1039/C8NA00374B

Oriented attachment growth of monocrystalline cuprous oxide nanowires in pure water. / Meng, Jun; Hou, Chengyi; Wang, Hongzhi; Chi, Qijin; Gao, Yi; Zhu, Beien.

In: Nanoscale Advances, Vol. 1, No. 6, 2019, p. 2174-2179.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Oriented attachment growth of monocrystalline cuprous oxide nanowires in pure water

AU - Meng, Jun

AU - Hou, Chengyi

AU - Wang, Hongzhi

AU - Chi, Qijin

AU - Gao, Yi

AU - Zhu, Beien

PY - 2019

Y1 - 2019

N2 - As a crucial mechanism of non-classical crystallization, the oriented attachment (OA) growth of nanocrystals is of great interest in nanoscience and materials science. The OA process occurring in aqueous solution with chemical reagents has been reported many times, but there are limited studies reporting the OA growth in pure water. In this work, we report the temperature-dependent OA growth of cuprous oxide (Cu2O) nanowires in pure water through a reagent-free electrophoretic method. Our experiments demonstrate that Cu2O quantum dots randomly coalesced to form polycrystalline nanowires at room temperature, while they form monocrystalline nanowires at higher temperatures by the OA mechanism. DFT modeling and computations indicate that the water coverage on the Cu2O nanoparticles could affect the particle attachment mechanisms. This study sheds light on the understanding of the effects of water molecules on the OA mechanism and shows new approaches for better controllable non-classical crystallization in pure water.

AB - As a crucial mechanism of non-classical crystallization, the oriented attachment (OA) growth of nanocrystals is of great interest in nanoscience and materials science. The OA process occurring in aqueous solution with chemical reagents has been reported many times, but there are limited studies reporting the OA growth in pure water. In this work, we report the temperature-dependent OA growth of cuprous oxide (Cu2O) nanowires in pure water through a reagent-free electrophoretic method. Our experiments demonstrate that Cu2O quantum dots randomly coalesced to form polycrystalline nanowires at room temperature, while they form monocrystalline nanowires at higher temperatures by the OA mechanism. DFT modeling and computations indicate that the water coverage on the Cu2O nanoparticles could affect the particle attachment mechanisms. This study sheds light on the understanding of the effects of water molecules on the OA mechanism and shows new approaches for better controllable non-classical crystallization in pure water.

U2 - 10.1039/C8NA00374B

DO - 10.1039/C8NA00374B

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JO - Nanoscale Advances

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