Synthesis of lustering two-dimensional α-MoO3 van der Waals crystals by TiO2 assisted selective facet passivation

Sang Hwa Moon; Min Jin Kim; Sang Hyuk Im

doi:10.1016/j.jiec.2020.01.019

Synthesis of lustering two-dimensional α-MoO₃ van der Waals crystals by TiO₂ assisted selective facet passivation

Sang Hwa Moon, Min Jin Kim, Sang Hyuk Im

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

4 Citations (Scopus)

Abstract

Large-sized α-MoO₃ nanoplates with 10−100 μm were synthesized by introduction of titanium tetra isopropoxide as TiO₂ precursor in hydrothermal solution chemistry. During the hydrothermal synthesis, the TiO₂ can be selectively deposited on the (001) facets of h-MoO₃ hexagonal rods and on the (001) and/or (010) facet of α-MoO₃ re-growing crystals due to the small lattice mismatch between them. Owing to the TiO₂ passivation of the surface of h-MoO₃ rods, the h-MoO₃ rods are changed to MoO₃ tubes because the h-MoO₃ are dissolved from the inner part of the TiO₂ passivated h-MoO₃ rods. The TiO₂-passivated (001) facets of h-MoO₃ rods act as templates for the re-growth of α-MoO₃ and consequently produced rectangle-shaped α-MoO₃ nanoplates. Simultaneously, the TiO₂ passivated on the (001) and/or (010) facet of the re-growing α-MoO₃ crystals inhibits the preferred crystal growth to [001] direction and promoted the crystal growth to [100] direction, thereby yielding plate-shaped α-MoO₃. The small α-MoO₃ nanoplates and rectangle-shaped ones are further grown to larger nanoplates by attachment process and/or continuous growth.

Original language	English
Pages (from-to)	358-365
Number of pages	8
Journal	Journal of Industrial and Engineering Chemistry
Volume	84
DOIs	https://doi.org/10.1016/j.jiec.2020.01.019
Publication status	Published - 2020 Apr 25

Bibliographical note

Funding Information:
This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799 ), the Technology Development Program to Solve Climate Change (No. 2015M1A2A2055631 ) and the Global Frontier R&D Program of the Center for Multiscale Energy Systems (No. 2018M3A6A7055631 )) and the Ministry of Trade, Industry and Energy , Republic of Korea (New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (No. 20183010013820 )).

Funding Information:
This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799), the Technology Development Program to Solve Climate Change (No. 2015M1A2A2055631) and the Global Frontier R&D Program of the Center for Multiscale Energy Systems (No. 2018M3A6A7055631)) and the Ministry of Trade, Industry and Energy, Republic of Korea (New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (No. 20183010013820)).

Publisher Copyright:
© 2020 The Korean Society of Industrial and Engineering Chemistry

Keywords

Facet passivation
Lustering effect pigments
Molybdenum trioxide
Nanoplates
van der Waals crystals

ASJC Scopus subject areas

General Chemical Engineering

Access to Document

10.1016/j.jiec.2020.01.019

Cite this

@article{d81b3bff2b8d4c4d92cee833c1300f7b,

title = "Synthesis of lustering two-dimensional α-MoO3 van der Waals crystals by TiO2 assisted selective facet passivation",

abstract = "Large-sized α-MoO3 nanoplates with 10−100 μm were synthesized by introduction of titanium tetra isopropoxide as TiO2 precursor in hydrothermal solution chemistry. During the hydrothermal synthesis, the TiO2 can be selectively deposited on the (001) facets of h-MoO3 hexagonal rods and on the (001) and/or (010) facet of α-MoO3 re-growing crystals due to the small lattice mismatch between them. Owing to the TiO2 passivation of the surface of h-MoO3 rods, the h-MoO3 rods are changed to MoO3 tubes because the h-MoO3 are dissolved from the inner part of the TiO2 passivated h-MoO3 rods. The TiO2-passivated (001) facets of h-MoO3 rods act as templates for the re-growth of α-MoO3 and consequently produced rectangle-shaped α-MoO3 nanoplates. Simultaneously, the TiO2 passivated on the (001) and/or (010) facet of the re-growing α-MoO3 crystals inhibits the preferred crystal growth to [001] direction and promoted the crystal growth to [100] direction, thereby yielding plate-shaped α-MoO3. The small α-MoO3 nanoplates and rectangle-shaped ones are further grown to larger nanoplates by attachment process and/or continuous growth.",

keywords = "Facet passivation, Lustering effect pigments, Molybdenum trioxide, Nanoplates, van der Waals crystals",

author = "Moon, {Sang Hwa} and Kim, {Min Jin} and Im, {Sang Hyuk}",

note = "Funding Information: This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799 ), the Technology Development Program to Solve Climate Change (No. 2015M1A2A2055631 ) and the Global Frontier R&D Program of the Center for Multiscale Energy Systems (No. 2018M3A6A7055631 )) and the Ministry of Trade, Industry and Energy , Republic of Korea (New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (No. 20183010013820 )). Funding Information: This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799), the Technology Development Program to Solve Climate Change (No. 2015M1A2A2055631) and the Global Frontier R&D Program of the Center for Multiscale Energy Systems (No. 2018M3A6A7055631)) and the Ministry of Trade, Industry and Energy, Republic of Korea (New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (No. 20183010013820)). Publisher Copyright: {\textcopyright} 2020 The Korean Society of Industrial and Engineering Chemistry",

year = "2020",

month = apr,

day = "25",

doi = "10.1016/j.jiec.2020.01.019",

language = "English",

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journal = "Journal of Industrial and Engineering Chemistry",

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publisher = "Korean Society of Industrial Engineering Chemistry",

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T1 - Synthesis of lustering two-dimensional α-MoO3 van der Waals crystals by TiO2 assisted selective facet passivation

AU - Moon, Sang Hwa

AU - Kim, Min Jin

AU - Im, Sang Hyuk

N1 - Funding Information: This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799 ), the Technology Development Program to Solve Climate Change (No. 2015M1A2A2055631 ) and the Global Frontier R&D Program of the Center for Multiscale Energy Systems (No. 2018M3A6A7055631 )) and the Ministry of Trade, Industry and Energy , Republic of Korea (New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (No. 20183010013820 )). Funding Information: This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2014R1A5A1009799), the Technology Development Program to Solve Climate Change (No. 2015M1A2A2055631) and the Global Frontier R&D Program of the Center for Multiscale Energy Systems (No. 2018M3A6A7055631)) and the Ministry of Trade, Industry and Energy, Republic of Korea (New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (No. 20183010013820)). Publisher Copyright: © 2020 The Korean Society of Industrial and Engineering Chemistry

PY - 2020/4/25

Y1 - 2020/4/25

N2 - Large-sized α-MoO3 nanoplates with 10−100 μm were synthesized by introduction of titanium tetra isopropoxide as TiO2 precursor in hydrothermal solution chemistry. During the hydrothermal synthesis, the TiO2 can be selectively deposited on the (001) facets of h-MoO3 hexagonal rods and on the (001) and/or (010) facet of α-MoO3 re-growing crystals due to the small lattice mismatch between them. Owing to the TiO2 passivation of the surface of h-MoO3 rods, the h-MoO3 rods are changed to MoO3 tubes because the h-MoO3 are dissolved from the inner part of the TiO2 passivated h-MoO3 rods. The TiO2-passivated (001) facets of h-MoO3 rods act as templates for the re-growth of α-MoO3 and consequently produced rectangle-shaped α-MoO3 nanoplates. Simultaneously, the TiO2 passivated on the (001) and/or (010) facet of the re-growing α-MoO3 crystals inhibits the preferred crystal growth to [001] direction and promoted the crystal growth to [100] direction, thereby yielding plate-shaped α-MoO3. The small α-MoO3 nanoplates and rectangle-shaped ones are further grown to larger nanoplates by attachment process and/or continuous growth.

AB - Large-sized α-MoO3 nanoplates with 10−100 μm were synthesized by introduction of titanium tetra isopropoxide as TiO2 precursor in hydrothermal solution chemistry. During the hydrothermal synthesis, the TiO2 can be selectively deposited on the (001) facets of h-MoO3 hexagonal rods and on the (001) and/or (010) facet of α-MoO3 re-growing crystals due to the small lattice mismatch between them. Owing to the TiO2 passivation of the surface of h-MoO3 rods, the h-MoO3 rods are changed to MoO3 tubes because the h-MoO3 are dissolved from the inner part of the TiO2 passivated h-MoO3 rods. The TiO2-passivated (001) facets of h-MoO3 rods act as templates for the re-growth of α-MoO3 and consequently produced rectangle-shaped α-MoO3 nanoplates. Simultaneously, the TiO2 passivated on the (001) and/or (010) facet of the re-growing α-MoO3 crystals inhibits the preferred crystal growth to [001] direction and promoted the crystal growth to [100] direction, thereby yielding plate-shaped α-MoO3. The small α-MoO3 nanoplates and rectangle-shaped ones are further grown to larger nanoplates by attachment process and/or continuous growth.

KW - Facet passivation

KW - Lustering effect pigments

KW - Molybdenum trioxide

KW - Nanoplates

KW - van der Waals crystals

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U2 - 10.1016/j.jiec.2020.01.019

DO - 10.1016/j.jiec.2020.01.019

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AN - SCOPUS:85078796784

SN - 1226-086X

VL - 84

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EP - 365

JO - Journal of Industrial and Engineering Chemistry

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